Stonly vs Yellow.ai

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

More about Yellow.aiMore about StonlyGet Started Today
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 Stonly and Yellow.ai 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 Stonly and Yellow.ai, 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 Stonly if: you value exceptional ease of use - 4.8/5 g2 rating with intuitive visual editor praised in 32 reviews
  • Choose Yellow.ai if: you value genuinely comprehensive 35+ channel coverage: whatsapp bsp, messenger, instagram, telegram, slack, teams, voice, sms

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

About Yellow.ai

Yellow.ai Landing Page Screenshot

Yellow.ai is enterprise conversational ai platform with multi-llm orchestration. Enterprise conversational AI platform with embedded RAG capabilities processing 16 billion+ conversations annually. Multi-LLM orchestration across 35+ channels and 135+ languages with proprietary YellowG LLM claiming <1% hallucination rates. Founded in 2016, headquartered in San Mateo, CA, USA / Bengaluru, India, the platform has established itself as a reliable solution in the RAG space.

Overall Rating
85/100
Starting Price
Custom

Key Differences at a Glance

In terms of user ratings, Stonly in overall satisfaction. From a cost perspective, Yellow.ai offers more competitive entry pricing. The platforms also differ in their primary focus: Knowledge Management versus Conversational AI. 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 stonly
Stonly
logo of yellow
Yellow.ai
logo of customGPT logo
CustomGPTRECOMMENDED
Data Ingestion & Knowledge Sources
  • ✅ 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)
  • DocCog Engine – 75-85% accuracy with T5 model fine-tuned on SQuAD/TriviaQA
  • Formats – PDF, DOCX, DOC, PPTX, PPT, TXT via platform UI only
  • Enterprise integrations – Salesforce, ServiceNow, Confluence, SharePoint, AWS S3
  • Auto-sync – Hourly, daily, weekly configurable intervals
  • ⚠️ No cloud storage – No Google Drive, Dropbox, or Notion support
  • ⚠️ No API upload – Document management via UI only
  • 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
  • ⚠️ 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
  • YellowG LLM – Proprietary with <1% hallucination claims, 0.6s response
  • Komodo-7B – Indonesia-focused with 11+ regional languages
  • T5 Fine-Tuned – SQuAD/TriviaQA for Q&A extraction
  • GPT-3/3.5 – Integration documented
  • ⚠️ GPT-4/Claude unclear – Not explicitly confirmed in docs
  • ⚠️ No manual selection – Dynamic routing handles automatically
  • 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
  • ✅ 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
  • YellowG claims – <1% hallucination vs GPT-3's 22.7%
  • 0.6s latency – Average response time claimed
  • DocCog accuracy – 75-85% depending on complexity
  • Scale validated – 16B+ conversations annually
  • ⚠️ No published benchmarks – No independent validation
  • 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
Developer Experience ( A P I & S D Ks)
  • ✅ 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
  • Platform-first – APIs supplementary, not primary access
  • Available via API – User management, event pushing, webhooks
  • Mobile SDKs – Well-documented Android, iOS, React Native, Flutter
  • ⚠️ NOT via API – Bot creation, document upload, RAG querying
  • ⚠️ No Python SDK – Only mobile SDKs available
  • 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
Integrations & Channels
  • ✅ 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
  • 35+ channels – WhatsApp (BSP), Messenger, Instagram, Telegram, Slack, Teams, Line
  • Voice channels – IVR, Google Assistant, Amazon Alexa, telephony
  • Enterprise systems – Salesforce, ServiceNow, Confluence, SharePoint
  • Mobile SDKs – Android, iOS, React Native, Flutter, Cordova
  • ⚠️ No Python SDK – Major gap for backend developers
  • 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
Customization & Branding
  • ✅ 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
  • Visual Studio – Drag-and-drop conversation flow builder
  • White-labeling – Custom branding on Enterprise plan
  • Agent personality – Configurable tone and response style
  • RBAC – Six permission levels for access control
  • 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 Knowledge Base Features
  • ✅ 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
N/A
A I Answers Feature ( Enterprise Only)
  • ⚠️ 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
N/A
Observability & Monitoring
  • ✅ 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
  • Analytics dashboard – Comprehensive conversation metrics
  • Deflection metrics – Automation success rates
  • Voice analytics – IVR and telephony tracking
  • 15-day audit logs – API activity retention
  • 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
  • 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
  • Free tier – 1 bot, 2 channels, 100 MTUs (evaluation only)
  • Basic – ~$10,000/year for single use case
  • Standard – ~$25,000/year for up to 4 use cases
  • Enterprise – Custom with unlimited bots, on-premise options
  • ⚠️ 4-month implementation – Typical deployment timeline
  • 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
  • ✅ 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
N/A
  • 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
  • ✅ 4.8/5 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
  • Multi-channel support – Email, chat, phone with tier-based access
  • Enterprise support – Dedicated CSMs, priority SLAs
  • Gartner recognition – Magic Quadrant 'Challenger' (2023/2025)
  • G2 ratings – 4.4/5 (106 reviews), 9.3 customization
  • ⚠️ Steep learning curve – "Rubik's cube blindfolded" G2 review
  • 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 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
  • Visual Studio – Drag-and-drop flow builder
  • Dynamic AI Agent – Zero-training deployment
  • Pre-built templates – Industry-specific scenarios
  • ⚠️ Reality check – G2 reviews cite "steep learning curve"
  • ⚠️ Developer effort – Required for journey updates despite no-code claims
  • 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
R A G-as-a- Service Assessment
  • ⚠️ 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 – Full-stack enterprise CX, NOT pure RAG-as-a-Service
  • Critical distinction – RAG embedded, not exposed as API
  • ⚠️ Cannot use as RAG backend – Queries must flow through platform
  • ⚠️ No RAG endpoints – No embedding access or vector store API
  • Comparison warning – vs CustomGPT is architecturally misleading
  • 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
Competitive Positioning
  • ✅ 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
  • 35+ channel coverage – Unmatched omnichannel with WhatsApp BSP
  • Compliance leadership – SOC 2, ISO, HIPAA, GDPR, PCI DSS, FedRAMP
  • Gartner validated – Magic Quadrant Challenger status
  • ⚠️ Not RAG-as-a-Service – Embedded RAG, closed API
  • ⚠️ High entry barrier – $10K+ annual minimum
  • 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
  • ⚠️ 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
  • YellowG LLM – Proprietary with <1% hallucination claims
  • Komodo-7B – 11+ Indonesian language variants
  • Orchestrator LLM – Context switching, multi-intent detection
  • T5 Fine-Tuned – DocCog Q&A extraction
  • ⚠️ Limited flexibility – No manual model selection
  • 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
  • ✅ 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
  • Agentic RAG – Multi-checkpoint validation with guardrails
  • DocCog – 75-85% accuracy for Q&A extraction
  • Hallucination prevention – Proprietary training approach
  • Knowledge sync – Configurable intervals for external sources
  • ⚠️ Closed architecture – No direct API or embedding access
  • 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
  • ✅ 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 service – 90% automation across 35+ channels
  • Employee experience – IT support, HR FAQs, leave applications
  • E-commerce – Shopping assistance, order tracking, fraud detection
  • Regulated industries – Healthcare, financial services, government
  • 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
  • ✅ 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 – Independently audited
  • ISO certifications – 27001, 27018, 27701
  • HIPAA/GDPR/PCI DSS – Healthcare, privacy, payment compliance
  • FedRAMP – US government authorized
  • 6 data regions – US, EU, Singapore, India, Indonesia, UAE
  • 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
  • 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
N/A
  • 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
  • ✅ 4.8/5 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
N/A
  • 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
  • ⚠️ 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
  • ⚠️ NOT RAG-as-a-Service – Embedded RAG, cannot use as knowledge backend
  • ⚠️ No API-first development – Cannot create bots or upload docs via API
  • ⚠️ Missing developer tools – No Python SDK, no npm package, no OpenAPI spec
  • ⚠️ No cloud storage – No Google Drive, Dropbox, Notion integration
  • ⚠️ High entry barrier – $10K-$25K annual, 4-month implementation
  • Best for – Enterprise omnichannel CX; poor fit for RAG API developers
  • 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
  • ✅ 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
  • 16B+ conversations – Massive scale annually across enterprise deployments
  • 135+ languages – Including 11+ Indonesian variants (Komodo-7B)
  • Agentic RAG – Multi-checkpoint validation with guardrails
  • YellowG LLM – Claims <1% hallucination vs GPT-3's 22.7%
  • 0.6s response time – Optimized for conversational AI
  • 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
Additional Considerations
  • ⚠️ 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
  • Platform type – Enterprise CX platform with embedded RAG, NOT RaaS
  • ✅ 35+ channels – Exceptional omnichannel with 135+ languages
  • ✅ Compliance breadth – SOC 2, ISO, HIPAA, GDPR, PCI DSS, FedRAMP
  • ⚠️ Not for developers – No RAG API, Python SDK, or programmatic control
  • ⚠️ High entry barrier – $10K-$25K annual with 4-month implementation
  • Best for – Enterprises needing omnichannel CX automation at scale
  • 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
Core Chatbot Features
  • ✅ 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
  • Multi-turn conversations – Context across turns with intent detection
  • 150+ languages – Automatic detection with native processing
  • Human handoff – Full context transfer with SLA tracking
  • Voice AI – 50+ language support with sentiment analysis
  • 170+ integrations – Complex workflow automation
  • ✅ #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
Customization & Flexibility ( Behavior & Knowledge)
  • ✅ 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
  • Agent persona – Name, role, tone, communication style
  • Conversation rules – Custom behavior for specific situations
  • Multi-KB support – Role-based access, cross-KB search
  • ⚠️ No embedding control – Retrieval mechanisms not exposed
  • ⚠️ No programmatic API – UI-only knowledge management
  • 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

Ready to experience the CustomGPT difference?

Start Free Trial →

Final Thoughts

Final Verdict: Stonly vs Yellow.ai

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

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

When to Choose Yellow.ai

  • You value genuinely comprehensive 35+ channel coverage: whatsapp bsp, messenger, instagram, telegram, slack, teams, voice, sms
  • Exceptional compliance credentials: SOC 2, ISO 27001/27018/27701, HIPAA, GDPR, PCI DSS, FedRAMP
  • Multi-region data centers (US, EU, Singapore, India, Indonesia, UAE) with customer-selected residency

Best For: Genuinely comprehensive 35+ channel coverage: WhatsApp BSP, Messenger, Instagram, Telegram, Slack, Teams, voice, SMS

Migration & Switching Considerations

Switching between Stonly and Yellow.ai 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

Stonly starts at $249/month, while Yellow.ai begins at custom pricing. 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 Stonly and Yellow.ai 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: February 2, 2026 | This comparison is regularly reviewed and updated to reflect the latest platform capabilities, pricing, and user feedback.

See Also

Ready to Get Started with CustomGPT?

Join thousands of businesses that trust CustomGPT for their AI needs. Choose the path that works best for you.

Start Your Free Trial

Experience the full power of CustomGPT risk-free.

Get Started
RECOMMENDED

Request a Demo

See how CustomGPT can transform your business operations.

Get Started

Contact Sales

Get personalized guidance from our expert team.

Get Started

Why Choose CustomGPT?

97% Accuracy

Industry-leading benchmarks

5-Min Setup

Get started instantly

24/7 Support

Expert help when you need it

Enterprise Ready

Scale with confidence

Trusted by leading companies worldwide

Fortune 500Fortune 500Fortune 500Fortune 500Fortune 500Fortune 500

CustomGPT

The most accurate RAG-as-a-Service API. Deliver production-ready reliable RAG applications faster. Benchmarked #1 in accuracy and hallucinations for fully managed RAG-as-a-Service API.

Get API KeyDocumentationRead our benchmarks
Get in touch
Contact Us

Join the Discussion

Loading comments...

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.

Watch: Understanding AI Tool Comparisons