Fastbots vs Stonly

Make an informed decision with our comprehensive comparison. Discover which RAG solution perfectly fits your needs.

Priyansh Khodiyar's avatar
Priyansh KhodiyarDevRel at CustomGPT.ai

Fact checked and reviewed by Bill Cava

Published: 01.04.2025Updated: 25.04.2025

In this comprehensive guide, we compare Fastbots and Stonly across various parameters including features, pricing, performance, and customer support to help you make the best decision for your business needs.

Overview

When choosing between Fastbots and Stonly, understanding their unique strengths and architectural differences is crucial for making an informed decision. Both platforms serve the RAG (Retrieval-Augmented Generation) space but cater to different use cases and organizational needs.

Quick Decision Guide

  • Choose Fastbots if: you value best value for multi-llm access - $19.99/month for gpt-4, claude, and gemini (vs competitors at $50-100/month)
  • Choose Stonly if: you value exceptional ease of use - 4.8/5 g2 rating with intuitive visual editor praised in 32 reviews

About Fastbots

Fastbots Landing Page Screenshot

Fastbots is ai chatbot platform with 80+ integrations and white-label agency features. Fastbots is a multi-LLM chatbot platform with 80+ native integrations, visual flow builder, and comprehensive white-labeling for agencies. It offers intelligent routing across GPT-4, Claude, and Gemini with competitive pricing starting at $19.99/month, but lacks enterprise certifications and has inconsistent performance across different LLMs. Founded in 2023, headquartered in United States, the platform has established itself as a reliable solution in the RAG space.

Overall Rating
96/100
Starting Price
$19.99/mo

About Stonly

Stonly Landing Page Screenshot

Stonly is interactive knowledge base platform with enterprise ai-powered answers. Stonly is a customer support knowledge management platform with embedded AI capabilities focused on interactive step-by-step guides and help desk agent assistance. Its AI Answers feature (Enterprise-only add-on) achieves 71% self-serve success rates, but it's fundamentally a knowledge base platform with AI features—not a pure RAG-as-a-Service solution. Founded in 2017, headquartered in San Francisco, CA, the platform has established itself as a reliable solution in the RAG space.

Overall Rating
96/100
Starting Price
$249/mo

Key Differences at a Glance

In terms of user ratings, both platforms score similarly in overall satisfaction. From a cost perspective, Fastbots starts at a lower price point. The platforms also differ in their primary focus: Chatbot Platform versus Knowledge Management. These differences make each platform better suited for specific use cases and organizational requirements.

⚠️ What This Comparison Covers

We'll analyze features, pricing, performance benchmarks, security compliance, integration capabilities, and real-world use cases to help you determine which platform best fits your organization's needs. All data is independently verified from official documentation and third-party review platforms.

Detailed Feature Comparison

logo of fastbots
Fastbots
logo of stonly
Stonly
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CustomGPTRECOMMENDED
Data Ingestion & Knowledge Sources
  • ✅ Website crawling – Auto-extract content with configurable depth from URLs
  • ✅ Document upload – PDF, DOCX, TXT, CSV with audio/video transcription
  • ✅ Storage capacity – 400K characters (Free), 11M characters (Starter+)
  • ✅ Auto-retrain – Daily, weekly, monthly scheduled knowledge base updates
  • ⚠️ No native cloud storage – Missing Google Drive, Dropbox, Notion integrations
  • ✅ PDF uploads & public website crawling – Zendesk help center content indexing supported
  • ✅ Proprietary interactive guide format – Primary content model with visual editor
  • ⚠️ No cloud storage integrations – Missing Google Drive, Dropbox, Notion, SharePoint, YouTube
  • Content limits: Basic (5 guides, 400 views/mo), Small Business (unlimited, 4K views/mo), Enterprise (custom)
  • 1,400+ file formats – PDF, DOCX, Excel, PowerPoint, Markdown, HTML + auto-extraction from ZIP/RAR/7Z archives
  • Website crawling – Sitemap indexing with configurable depth for help docs, FAQs, and public content
  • Multimedia transcription – AI Vision, OCR, YouTube/Vimeo/podcast speech-to-text built-in
  • Cloud integrations – Google Drive, SharePoint, OneDrive, Dropbox, Notion with auto-sync
  • Knowledge platforms – Zendesk, Freshdesk, HubSpot, Confluence, Shopify connectors
  • Massive scale – 60M words (Standard) / 300M words (Premium) per bot with no performance degradation
L L M Model Options
  • ✅ OpenAI models – GPT-4, GPT-4 Turbo, GPT-3.5 Turbo
  • ✅ Multiple providers – Anthropic Claude 3, Google Gemini Pro 1.5, Meta Llama 3.1
  • ✅ Intelligent routing – Route by complexity: GPT-4 complex, GPT-3.5 simple
  • ✅ No API keys – Models included in subscription, no per-token charges
  • ⚠️ Performance varies – GPT-4 best, Claude/Gemini show inconsistencies
  • ⚠️ Undisclosed proprietary LLM – No model selection or transparency on provider
  • ✅ AI Profiles (20) & Custom Instructions (100) – Define tone, boundaries, behavior
  • ✅ Guided AI Answers – Predefined responses for sensitive scenarios bypass AI
  • ✅ Knowledge-grounded approach – Anchored responses reduce hallucinations vs generic chatbots
  • GPT-5.1 models – Latest thinking models (Optimal & Smart variants)
  • GPT-4 series – GPT-4, GPT-4 Turbo, GPT-4o available
  • Claude 4.5 – Anthropic's Opus available for Enterprise
  • Auto model routing – Balances cost/performance automatically
  • Zero API key management – All models managed behind the scenes
Performance & Accuracy
  • ✅ Accuracy – ~85% with optimal GPT-4 model selection
  • ✅ Response time – Real-time streaming for faster perceived performance
  • ✅ Uptime – ~99.5% estimated from user feedback
  • ✅ Context retention – Conversation memory across messages within session
  • ⚠️ No SLA commitments – No published uptime guarantees
  • ✅ 71% self-serve success rate – Company data with AI Answers feature
  • ✅ 70-76% ticket reduction – Documented in case studies
  • ✅ 99.9% uptime claimed – No published SLA or response time details
  • ⚠️ Flow reports update every 15 min – Not real-time analytics
  • Sub-second responses – Optimized RAG with vector search and multi-layer caching
  • Benchmark-proven – 13% higher accuracy, 34% faster than OpenAI Assistants API
  • Anti-hallucination tech – Responses grounded only in your provided content
  • OpenGraph citations – Rich visual cards with titles, descriptions, images
  • 99.9% uptime – Auto-scaling infrastructure handles traffic spikes
Integrations & Channels
  • ✅ 80+ native integrations – No Zapier/Make dependency, saves $20-50/month
  • ✅ Messaging platforms – WhatsApp, Messenger, Instagram, Telegram, Slack, Discord
  • ✅ CRM & e-commerce – HubSpot, Salesforce, Shopify, WooCommerce with payment support
  • ✅ API access – Available Professional plan ($99/mo) and above
  • ✅ Deep help desk integrations – Zendesk, Salesforce Service Cloud, Freshdesk, ServiceNow
  • ✅ Zapier integration – Webhook triggers for form submissions and completions
  • ✅ Analytics integrations – Segment, Google Analytics
  • ⚠️ No messaging integrations – Missing Slack, WhatsApp, Telegram, Microsoft Teams
  • Website embedding – Lightweight JS widget or iframe with customizable positioning
  • CMS plugins – WordPress, WIX, Webflow, Framer, SquareSpace native support
  • 5,000+ app ecosystem – Zapier connects CRMs, marketing, e-commerce tools
  • MCP Server – Integrate with Claude Desktop, Cursor, ChatGPT, Windsurf
  • OpenAI SDK compatible – Drop-in replacement for OpenAI API endpoints
  • LiveChat + Slack – Native chat widgets with human handoff capabilities
Developer Experience ( A P I & S D Ks)
  • ✅ REST API – Available Professional ($99/mo) and above with webhooks
  • ✅ Custom JavaScript – Inject custom code for widget behavior
  • ⚠️ No official SDKs – Missing Python, JavaScript language-specific libraries
  • ⚠️ Basic documentation – No Swagger/OpenAPI spec, limited resources
  • ✅ REST API – User provisioning, content management, widget control
  • ✅ Mobile SDKs (Enterprise only) – iOS, Android, React Native, Flutter
  • ⚠️ No Python/Node.js SDKs – No GraphQL, OpenAPI specs, or API sandbox
  • REST API – Full-featured for agents, projects, data ingestion, chat queries
  • Python SDK – Open-source customgpt-client with full API coverage
  • Postman collections – Pre-built requests for rapid prototyping
  • Webhooks – Real-time event notifications for conversations and leads
  • OpenAI compatible – Use existing OpenAI SDK code with minimal changes
Customization & Branding
  • ✅ White-label – Remove branding from Starter plan ($19.99)
  • ✅ Custom domain – chat.yourdomain.com with SSL/TLS included
  • ✅ Widget customization – Colors, logo, position, size with custom CSS
  • ✅ Flow builder – Visual drag-and-drop conversation design
  • ✅ Multi-language – 95+ languages with automatic translation
  • ✅ Visual no-code editor – Intuitive interface for guides, decision trees, forms
  • ✅ CSS customization on all paid plans – White-labeling Enterprise only
  • ✅ Small learning curve – Users create guides in under 30 minutes
  • ⚠️ Cannot edit on mobile devices – Desktop-only guide creation
  • Full white-labeling included – Colors, logos, CSS, custom domains at no extra cost
  • 2-minute setup – No-code wizard with drag-and-drop interface
  • Persona customization – Control AI personality, tone, response style via pre-prompts
  • Visual theme editor – Real-time preview of branding changes
  • Domain allowlisting – Restrict embedding to approved sites only
Core Chatbot Features
  • ✅ Multi-bot support – 1 (Free) to 20 (Business) bots
  • ✅ Lead capture – Forms with qualification scoring and CRM routing
  • ✅ Human handoff – Transfer to inbox or Intercom, Zendesk
  • ✅ Unified inbox – Manage all conversations from one dashboard
  • ✅ Intent detection – AI-powered with custom fallback responses
  • ✅ Interactive step-by-step guides – Visual flow builder with branching logic
  • ✅ Decision trees and checklists – Task management with progress tracking
  • ✅ Contact forms and lead capture – Integrated customer information collection
  • ✅ Multi-language support – Auto-translation on Enterprise plan
  • ✅ #1 accuracy – Median 5/5 in independent benchmarks, 10% lower hallucination than OpenAI
  • ✅ Source citations – Every response includes clickable links to original documents
  • ✅ 93% resolution rate – Handles queries autonomously, reducing human workload
  • ✅ 92 languages – Native multilingual support without per-language config
  • ✅ Lead capture – Built-in email collection, custom forms, real-time notifications
  • ✅ Human handoff – Escalation with full conversation context preserved
Omnichannel Support
  • ✅ Website widget – Embeddable chat with full customization
  • ✅ Messaging platforms – WhatsApp, Messenger, Instagram, Telegram, Slack, Discord
  • ✅ API deployment – Build custom interfaces via REST API
  • ⚠️ No voice/IVR/SMS – Missing phone and text messaging capabilities
N/A
N/A
Observability & Monitoring
  • ✅ Conversation analytics – Messages, users, response rates tracking
  • ✅ Sentiment analysis – Track positive, negative, neutral trends
  • ✅ Lead metrics – Capture rate, qualification, conversion tracking
  • ⚠️ Basic analytics – No predictive insights or AI recommendations
  • ✅ Insights Dashboard – Views, visitors, bounce rates, drop-off analysis
  • ✅ NPS surveys (all plans) – CSAT and CES Enterprise only
  • ✅ Data export – Segment, Zapier, Google Analytics integration
  • Real-time dashboard – Query volumes, token usage, response times
  • Customer Intelligence – User behavior patterns, popular queries, knowledge gaps
  • Conversation analytics – Full transcripts, resolution rates, common questions
  • Export capabilities – API export to BI tools and data warehouses
Pricing & Scalability
  • Free plan – 1 bot, 100 messages/month, 400K characters
  • Starter ($19.99/mo) – 3 bots, 2K messages, all models, white-label
  • Professional ($99/mo) – 5 bots, 10K messages, API access
  • Business ($399/mo) – 20 bots, 40K messages, account manager
  • ✅ Best value – $19.99 GPT-4/Claude/Gemini vs $50-100 competitors
  • Basic (Free): 5 guides, 400 views/mo, 1 seat, single language
  • Small Business ($249/mo, $199/mo annual): Unlimited guides, 4K views/mo, 5 seats, CSS customization
  • Enterprise (~$39K/year avg): Custom views, unlimited seats, AI Answers add-on, Mobile SDKs, SAML SSO
  • ⚠️ Overage pricing escalates – +15K views = $200/mo, auto-upgrade after 2 months
  • Standard: $99/mo – 60M words, 10 bots
  • Premium: $449/mo – 300M words, 100 bots
  • Auto-scaling – Managed cloud scales with demand
  • Flat rates – No per-query charges
Security & Privacy
  • ✅ GDPR/CCPA compliance – European and California data protection
  • ✅ Data encryption – In transit and at rest with SSL/TLS
  • ⚠️ NO SOC 2/HIPAA – Unsuitable for enterprise or healthcare
  • ⚠️ NO ISO 27001/PCI DSS/FedRAMP – Missing enterprise certifications
  • ✅ SOC 2 Type 2, GDPR, HIPAA, ISO 27001 – PCI, CSA Star Level 1 compliant
  • ✅ Trust Center – trust.stonly.com with security documentation, subprocessor lists
  • ✅ SAML 2.0 SSO (Enterprise) – IP allowlisting, advanced RBAC, 2FA
  • SOC 2 Type II + GDPR – Third-party audited compliance
  • Encryption – 256-bit AES at rest, SSL/TLS in transit
  • Access controls – RBAC, 2FA, SSO, domain allowlisting
  • Data isolation – Never trains on your data
Support & Ecosystem
  • ✅ 4.9/5 customer support – Exceptional G2 rating for pricing tier
  • ✅ Email support – All plans including free tier
  • ✅ Priority support – Professional/Business plans with faster responses
  • ⚠️ No 24/7 support – Limited business hours on lower tiers
  • ✅ 4.8/5 G2 rating (132 reviews) – Ease of use praised in 32 reviews
  • ✅ Email and chat support – Dedicated support on Enterprise plan
  • ✅ Pre-built templates – Quick onboarding, guides created in under 30 minutes
  • Comprehensive docs – Tutorials, cookbooks, API references
  • Email + in-app support – Under 24hr response time
  • Premium support – Dedicated account managers for Premium/Enterprise
  • Open-source SDK – Python SDK, Postman, GitHub examples
  • 5,000+ Zapier apps – CRMs, e-commerce, marketing integrations
No- Code Interface & Usability
  • ✅ 4.8/5 ease of use – G2 rating with minimal learning curve
  • ✅ Quick setup – Users create bots in 15-30 minutes
  • ✅ Template library – Pre-built flows for common use cases
  • ✅ AI training wizard – Guided setup for knowledge base configuration
  • ✅ Preview mode – Test chatbot before publishing to channels
  • ✅ 4.8/5 ease of use rating – Visual drag-and-drop editor, no coding required
  • ✅ Small learning curve – Non-technical teams productive quickly
  • ✅ Pre-built templates – Common scenarios covered for faster creation
  • 2-minute deployment – Fastest time-to-value in the industry
  • Wizard interface – Step-by-step with visual previews
  • Drag-and-drop – Upload files, paste URLs, connect cloud storage
  • In-browser testing – Test before deploying to production
  • Zero learning curve – Productive on day one
Competitive Positioning
  • ✅ Best for – SMBs, agencies, e-commerce prioritizing value
  • ✅ Key differentiator – Multi-LLM at $19.99 vs $50-100 competitors
  • ✅ 80+ integrations – Eliminates Zapier, saves $20-50/month
  • ⚠️ Not suitable – Regulated industries, enterprises, voice/IVR
  • ✅ Unique interactive guide format – Structured support content vs free-form chat
  • ✅ 70-76% ticket reduction – 71% self-serve success rate documented
  • vs CustomGPT: Different categories (knowledge base vs RAG-as-a-Service)
  • Target: Support teams using Zendesk/Salesforce, not RAG developers
  • Market position – Leading RAG platform balancing enterprise accuracy with no-code usability. Trusted by 6,000+ orgs including Adobe, MIT, Dropbox.
  • Key differentiators – #1 benchmarked accuracy • 1,400+ formats • Full white-labeling included • Flat-rate pricing
  • vs OpenAI – 10% lower hallucination, 13% higher accuracy, 34% faster
  • vs Botsonic/Chatbase – More file formats, source citations, no hidden costs
  • vs LangChain – Production-ready in 2 min vs weeks of development
A I Models
  • OpenAI models – GPT-4, GPT-4 Turbo, GPT-3.5 Turbo
  • Multiple providers – Claude 3, Gemini Pro 1.5, Llama 3.1
  • Intelligent routing – Route by complexity for cost optimization
  • No API keys required – Models included in subscription
  • ⚠️ Undisclosed Proprietary LLM – No model selection or transparency
  • ✅ AI Profiles (20) & Custom Instructions (100) – Define tone and boundaries
  • ✅ Guided AI Answers – Predefined responses for sensitive scenarios
  • ✅ Knowledge-grounded approach – Anchored responses reduce hallucinations
  • OpenAI – GPT-5.1 (Optimal/Smart), GPT-4 series
  • Anthropic – Claude 4.5 Opus/Sonnet (Enterprise)
  • Auto-routing – Intelligent model selection for cost/performance
  • Managed – No API keys or fine-tuning required
R A G Capabilities
  • ✅ Website crawling – Auto-extract with depth control, sitemap support
  • ✅ Document upload – PDF, DOCX, TXT, CSV with 11M storage
  • ✅ Audio/video ingestion – Media transcription and extraction
  • ✅ Auto-retrain – Daily, weekly, monthly updates
  • ⚠️ Limitations – No cloud storage integration, 11M fills quickly
  • ✅ AI Answers (Enterprise add-on) – Grounded in guides, websites, PDFs
  • ✅ 71% self-serve success rate – Confidence-based fallback to ML search
  • ⚠️ Limited data sources – No Google Drive, Dropbox, Notion, SharePoint, YouTube
  • ⚠️ Manual content updates – No automatic syncing from external sources
  • GPT-4 + RAG – Outperforms OpenAI in independent benchmarks
  • Anti-hallucination – Responses grounded in your content only
  • Automatic citations – Clickable source links in every response
  • Sub-second latency – Optimized vector search and caching
  • Scale to 300M words – No performance degradation at scale
Use Cases
  • E-commerce support – 24/7 product queries, order tracking on Shopify/WooCommerce
  • Lead generation – Forms, qualification scoring, CRM sync
  • Multi-channel deployment – WhatsApp, Messenger, Instagram with unified inbox
  • ⚠️ NOT suitable – Regulated industries, voice/IVR use cases
  • ✅ Customer support ticket deflection – 70-76% reduction through interactive guides
  • ✅ Deep help desk integration – Zendesk, Salesforce, Freshdesk, ServiceNow workflows
  • ✅ Interactive onboarding – Step-by-step guides, decision trees, checklists
  • ✅ Multi-language support – Auto-translation for global teams (Enterprise)
  • Customer support – 24/7 AI handling common queries with citations
  • Internal knowledge – HR policies, onboarding, technical docs
  • Sales enablement – Product info, lead qualification, education
  • Documentation – Help centers, FAQs with auto-crawling
  • E-commerce – Product recommendations, order assistance
Security & Compliance
  • ✅ GDPR/CCPA compliance – European and California data protection
  • ✅ Data encryption – In transit, at rest, SSL/TLS
  • ⚠️ NO SOC 2/HIPAA/ISO 27001 – Not for enterprise or healthcare
  • ⚠️ NO PCI DSS/FedRAMP – Not for payments or government
  • ✅ SOC 2 Type 2, GDPR, HIPAA, ISO 27001 – PCI, CSA Star Level 1
  • ✅ Trust Center – trust.stonly.com with documentation, subprocessor lists
  • ✅ SAML 2.0 SSO (Enterprise) – IP allowlisting, advanced RBAC, 2FA
  • ⚠️ Data residency not documented – May limit certain jurisdiction deployments
  • SOC 2 Type II + GDPR – Regular third-party audits, full EU compliance
  • 256-bit AES encryption – Data at rest; SSL/TLS in transit
  • SSO + 2FA + RBAC – Enterprise access controls with role-based permissions
  • Data isolation – Never trains on customer data
  • Domain allowlisting – Restrict chatbot to approved domains
Pricing & Plans
  • Free – 1 bot, 100 messages/month, 400K characters
  • Starter ($19.99/mo) – 3 bots, 2K messages, all models, white-label
  • Professional ($99/mo) – 5 bots, 10K messages, API access
  • Business ($399/mo) – 20 bots, 40K messages, account manager
  • ✅ Best value – $19.99 vs $50-100 competitors
  • Basic (Free): 5 guides, 400 views/mo, 1 seat, single language
  • Small Business ($249/mo, $199/mo annual): Unlimited guides, 4K views/mo, 5 seats, CSS customization
  • Enterprise (~$39K/year avg): Custom views, unlimited seats, white-label, SAML SSO, Mobile SDKs
  • ⚠️ Overage pricing: +15K views = $200/mo, auto-upgrade after 2 consecutive months
  • Standard: $99/mo – 10 chatbots, 60M words, 5K items/bot
  • Premium: $449/mo – 100 chatbots, 300M words, 20K items/bot
  • Enterprise: Custom – SSO, dedicated support, custom SLAs
  • 7-day free trial – Full Standard access, no charges
  • Flat-rate pricing – No per-query charges, no hidden costs
Support & Documentation
  • ✅ 4.9/5 customer support – Exceptional G2 rating for tier
  • ✅ Email + live chat – All plans, business hours
  • ✅ Priority support – Professional/Business with faster responses
  • ⚠️ No 24/7 support – Limited hours, no SLA
  • ✅ 4.8/5 G2 rating (132 reviews) – Ease of use praised consistently
  • ✅ Email and chat support – Dedicated support on Enterprise plan
  • ✅ Pre-built templates & tutorials – Guides created in under 30 minutes
  • Documentation hub – Docs, tutorials, API references
  • Support channels – Email, in-app chat, dedicated managers (Premium+)
  • Open-source – Python SDK, Postman, GitHub examples
  • Community – User community + 5,000 Zapier integrations
Limitations & Considerations
  • ⚠️ No compliance certs – Missing SOC 2/HIPAA/ISO/PCI/FedRAMP
  • ⚠️ No cloud storage – Missing Google Drive/Dropbox/Notion
  • ⚠️ Storage limits – 11M characters fills quickly
  • ⚠️ Model variance – GPT-4 best, Claude/Gemini inconsistent
  • ⚠️ No voice/SMS/SDKs – Missing phone, text, developer libraries
  • ⚠️ NOT a RAG-as-a-Service platform – Knowledge base tool with embedded AI
  • ⚠️ AI Answers Enterprise-gated – ~$39K/year, not available on $249/mo tier
  • ⚠️ Limited data sources – PDF, web, Zendesk only; no cloud storage
  • ⚠️ No messaging integrations – Missing Slack, WhatsApp, Telegram, Microsoft Teams
  • Not ideal for: Pure RAG API, multi-tenant SaaS backends, model customization needs
  • Managed service – Less control over RAG pipeline vs build-your-own
  • Model selection – OpenAI + Anthropic only; no Cohere, AI21, open-source
  • Real-time data – Requires re-indexing; not ideal for live inventory/prices
  • Enterprise features – Custom SSO only on Enterprise plan
Core Agent Features
  • AI agent transformation – Task-performing AI agents beyond chatbots
  • Zapier AI Actions – Automate workflows mid-conversation
  • In-chat actions – Check orders, book appointments, send emails
  • 95 languages – Automatic language support
  • ✅ Knowledge-grounded responses – Verified structured knowledge prevents hallucinations
  • ✅ AI Agent Assist – Summarizes tickets, suggests paths, drafts responses
  • ✅ Process automation – Define workflows linked to back-office tools
  • ✅ 71% self-serve success rate – Personalized knowledge adapts to needs
  • Custom AI Agents – Autonomous GPT-4/Claude agents for business tasks
  • Multi-Agent Systems – Specialized agents for support, sales, knowledge
  • Memory & Context – Persistent conversation history across sessions
  • Tool Integration – Webhooks + 5,000 Zapier apps for automation
  • Continuous Learning – Auto re-indexing without manual retraining
R A G-as-a- Service Assessment
  • Platform type – Conversational AI with RAG, not pure RAG-as-a-Service
  • ✅ Data sources – Website, documents, audio/video, sitemap
  • ✅ LLM options – OpenAI, Claude 3, Gemini Pro, Llama 3.1
  • ✅ Integration ecosystem – 80+ native, no Zapier dependency
  • ⚠️ API-first – Weak: REST API, no SDKs, basic docs
  • ⚠️ Compliance – GDPR/CCPA only, NO SOC 2/HIPAA/ISO
  • ⚠️ NOT a RAG-as-a-Service platform – Knowledge base tool with embedded AI
  • ⚠️ Limited data sources – PDF, public web, Zendesk only
  • ✅ Strong hallucination controls – Grounded in structured content
  • Best for: Customer support ticket deflection, not flexible RAG backends
  • Platform type – TRUE RAG-AS-A-SERVICE with managed infrastructure
  • API-first – REST API, Python SDK, OpenAI compatibility, MCP Server
  • No-code option – 2-minute wizard deployment for non-developers
  • Hybrid positioning – Serves both dev teams (APIs) and business users (no-code)
  • Enterprise ready – SOC 2 Type II, GDPR, WCAG 2.0, flat-rate pricing
Additional Considerations
  • ⚠️ Free plan limits – 100 messages/month for testing only
  • ⚠️ Complex flows – Limited multi-step logic capabilities
  • ⚠️ Training investment – Requires time for mastery
  • ✅ Managed services – Available for large enterprise teams
  • ✅ Strategic advantage – Multi-LLM flexibility vs locked competitors
  • ⚠️ Limited UI customization – Cannot fully match specific brand requirements
  • ⚠️ No offline access – Requires internet connectivity for guide availability
  • ⚠️ Performance degradation with large guides – Scalability concerns with complexity
  • ⚠️ View-based pricing – Additional fees for exceeding 4K views/mo
  • Time-to-value – 2-minute deployment vs weeks with DIY
  • Always current – Auto-updates to latest GPT models
  • Proven scale – 6,000+ organizations, millions of queries
  • Multi-LLM – OpenAI + Claude reduces vendor lock-in
Customization & Flexibility ( Behavior & Knowledge)
  • ✅ Visual flow builder – Drag-and-drop conversation design
  • ✅ Tone and personality – Configurable via system prompts
  • ✅ Multi-language – 95+ languages with automatic translation
  • ✅ Knowledge control – Uploaded info, ChatGPT knowledge, live internet
  • ✅ Lead qualification – Score and route based on responses
  • ✅ CSS and HTML customization – Change layout and look with custom code
  • ✅ Intuitive no-code tools – Easy customization without coding for basics
  • ✅ Personalized content – Use customer data for targeted experiences
  • ✅ Rich media support – Images, GIFs, videos, annotations
  • Live content updates – Add/remove content with automatic re-indexing
  • System prompts – Shape agent behavior and voice through instructions
  • Multi-agent support – Different bots for different teams
  • Smart defaults – No ML expertise required for custom behavior
Core Knowledge Base Features
N/A
  • ✅ Interactive step-by-step guides – Visual flow builder with branching logic
  • ✅ Decision trees, checklists, forms – Contact forms and lead capture
  • ✅ Content versioning – Side-by-side comparison, instant restore (Business+)
  • ✅ Multi-language support – Auto-translation on Enterprise plan
N/A
A I Answers Feature ( Enterprise Only)
N/A
  • ⚠️ Enterprise add-on only – Not included in Small Business plan
  • ✅ Generative AI grounded – Anchored in Stonly guides, websites, PDFs
  • ✅ Confidence-based fallback – Switches to ML-powered search when confidence low
  • ✅ 71% self-serve success rate – Hallucination reduction through knowledge-grounding
N/A

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Final Thoughts

Final Verdict: Fastbots vs Stonly

After analyzing features, pricing, performance, and user feedback, both Fastbots and Stonly are capable platforms that serve different market segments and use cases effectively.

When to Choose Fastbots

  • You value best value for multi-llm access - $19.99/month for gpt-4, claude, and gemini (vs competitors at $50-100/month)
  • 80+ native integrations eliminate need for Zapier/Make middleware (saves $20-50/month)
  • Exceptional customer support - 4.9/5 rating with fast response times

Best For: Best value for multi-LLM access - $19.99/month for GPT-4, Claude, and Gemini (vs competitors at $50-100/month)

When to Choose Stonly

  • You value exceptional ease of use - 4.8/5 g2 rating with intuitive visual editor praised in 32 reviews
  • Deep help desk integrations - bidirectional Zendesk, Salesforce, Freshdesk, ServiceNow connections
  • Strong compliance - SOC 2 Type 2, GDPR, HIPAA, ISO 27001, PCI, CSA Star Level 1

Best For: Exceptional ease of use - 4.8/5 G2 rating with intuitive visual editor praised in 32 reviews

Migration & Switching Considerations

Switching between Fastbots and Stonly requires careful planning. Consider data export capabilities, API compatibility, and integration complexity. Both platforms offer migration support, but expect 2-4 weeks for complete transition including testing and team training.

Pricing Comparison Summary

Fastbots starts at $19.99/month, while Stonly begins at $249/month. Total cost of ownership should factor in implementation time, training requirements, API usage fees, and ongoing support. Enterprise deployments typically see annual costs ranging from $10,000 to $500,000+ depending on scale and requirements.

Our Recommendation Process

  1. Start with a free trial - Both platforms offer trial periods to test with your actual data
  2. Define success metrics - Response accuracy, latency, user satisfaction, cost per query
  3. Test with real use cases - Don't rely on generic demos; use your production data
  4. Evaluate total cost - Factor in implementation time, training, and ongoing maintenance
  5. Check vendor stability - Review roadmap transparency, update frequency, and support quality

For most organizations, the decision between Fastbots and Stonly comes down to specific requirements rather than overall superiority. Evaluate both platforms with your actual data during trial periods, focusing on accuracy, latency, ease of integration, and total cost of ownership.

📚 Next Steps

Ready to make your decision? We recommend starting with a hands-on evaluation of both platforms using your specific use case and data.

  • Review: Check the detailed feature comparison table above
  • Test: Sign up for free trials and test with real queries
  • Calculate: Estimate your monthly costs based on expected usage
  • Decide: Choose the platform that best aligns with your requirements

Last updated: January 19, 2026 | This comparison is regularly reviewed and updated to reflect the latest platform capabilities, pricing, and user feedback.

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Priyansh Khodiyar's avatar

Priyansh Khodiyar

DevRel at CustomGPT.ai. Passionate about AI and its applications. Here to help you navigate the world of AI tools and make informed decisions for your business.

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