RAGFlow 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 RAGFlow 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 RAGFlow 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 RAGFlow if: you value truly open-source (apache 2.0) with 68k+ github stars - vibrant community
  • Choose Stonly if: you value exceptional ease of use - 4.8/5 g2 rating with intuitive visual editor praised in 32 reviews

About RAGFlow

RAGFlow Landing Page Screenshot

RAGFlow is open-source rag orchestration engine for document ai. Open-source RAG engine with deep document understanding, hybrid retrieval, and template-based chunking for extracting knowledge from complex formatted data. Founded in 2024, headquartered in Global (Open Source), the platform has established itself as a reliable solution in the RAG space.

Overall Rating
80/100
Starting Price
Custom

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, Stonly in overall satisfaction. From a cost perspective, RAGFlow starts at a lower price point. The platforms also differ in their primary focus: RAG 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 ragflow
RAGFlow
logo of stonly
Stonly
logo of customGPT logo
CustomGPTRECOMMENDED
Data Ingestion & Knowledge Sources
  • Deep document parsing – PDFs, Word, Excel, PowerPoint, images, scanned PDFs with OCR
  • Layout recognition – Template-based chunking preserving structure, sections, headings
  • External connectors – Confluence, AWS S3, Google Drive, Notion, Discord channels
  • Scheduled sync – Automated refresh for continuous ingestion from external sources
  • Elasticsearch backend – Handles unlimited tokens and millions of documents
  • ✅ 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
Integrations & Channels
  • ⚠️ No native integrations – No pre-built Slack, Teams, WhatsApp, Telegram
  • API-driven – RESTful conversation/query APIs for custom integrations
  • Reference chat UI – Demo interface included, can be embedded or customized
  • Ultimate flexibility – Integrate with any platform via API with engineering work
  • ✅ 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
Advanced R A G ( Core Differentiator)
  • GraphRAG – Graph-based retrieval for relationship-aware knowledge extraction
  • RAPTOR – Recursive abstractive processing for tree-organized retrieval
  • Agentic workflows – Multi-step reasoning, tool use, code execution in sandbox
  • Hybrid search – Full-text + vector + ML re-ranking combined
  • ✅ 68K+ GitHub stars – Fastest-growing open-source RAG project (Octoverse 2024)
N/A
N/A
Core Agent Features
  • Multi-turn context – Session-based conversation API (v0.22+)
  • Grounded citations – Answers backed by source text chunks
  • Multi-lingual – Depends on chosen LLM, Chinese UI native
  • ⚠️ No lead capture – Requires custom frontend implementation
  • ⚠️ No analytics dashboard – Must integrate external tools
  • ✅ 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
L L M Model Options
  • Model agnostic – OpenAI GPT-4/3.5, Claude 3, Gemini, Llama, Mistral
  • Local deployment – Ollama, Xinference, IPEX-LLM for complete offline
  • Chinese LLMs – Baichuan, Tencent Hunyuan, Baidu Yiyan, XunFei Spark
  • OpenAI-compatible – Any model with compatible API endpoints
  • ✅ No vendor lock-in – Swap providers freely
  • ⚠️ 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
Developer Experience ( A P I & S D Ks)
  • RESTful APIs – Document upload, parsing, datasets, conversation queries
  • Python interfaces – Library calls for programmatic control
  • Extensive docs – ragflow.io/docs with guides and examples
  • ⚠️ No packaged SDK – HTTP requests or direct module calls
  • ⚠️ Docker required – Self-hosted setup with technical expertise
  • ✅ 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
Performance & Accuracy
  • Hybrid retrieval – Full-text + vector + multiple recall with fused re-ranking
  • Grounded citations – Reduces hallucinations with source transparency
  • Deep document parsing – Layout recognition improves retrieval precision
  • Production-grade – Elasticsearch-backed for large datasets and fast queries
  • ✅ Community validated – 68K+ stars, many production deployments
  • ✅ 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
Security & Compliance
  • Complete data control – Self-hosted, data never leaves your infrastructure
  • On-premise deployment – Suitable for government/corporate secrets
  • Air-gapped option – Local LLMs eliminate external API exposure
  • User-configured encryption – TLS, VPN, OS-level disk encryption
  • ⚠️ No formal certifications – SOC 2, ISO 27001 via deployment config
  • ✅ 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
  • License: $0 – Apache 2.0 open-source, free to use and modify
  • Infrastructure costs – Cloud VMs, storage, networking paid by user
  • LLM API costs – Separate charges for OpenAI/Anthropic (eliminable with local)
  • Engineering costs – DevOps for installation, maintenance, updates
  • ⚠️ TCO variability – Can exceed SaaS for smaller deployments
  • 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
Customization & Branding
  • Full source access – Modify Admin UI, styling, behavior at code level
  • White-labeling – Complete branding removal via code editing
  • Custom frontend – Build entirely custom chat using RAGFlow as backend
  • ⚠️ No point-and-click – UI changes require config/code editing
  • ✅ 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
Observability & Monitoring
  • ⚠️ No built-in analytics – Basic admin stats only (doc counts, query history)
  • Logs – Console and file logs for operations and errors
  • External integration – Prometheus, Grafana, Datadog, Splunk compatible
  • Ultimate flexibility – Instrument with any monitoring stack
  • ✅ 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
Support & Ecosystem
  • 68K+ GitHub stars – Largest open-source RAG community
  • Active Discord – Real-time help from users and maintainers
  • Rapid releases – Modern features often before commercial platforms
  • ⚠️ No SLA – Community support, no guaranteed response times
  • ✅ 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
R A G-as-a- Service Assessment
  • Platform type – TRUE RAG PLATFORM (Open-Source Engine), NOT SaaS
  • Hybrid retrieval – Full-text + vector + re-ranking with deep document parsing
  • Model agnostic – Any LLM (OpenAI, local, custom) without vendor lock-in
  • Target users – Developer teams, enterprises with DevOps capabilities
  • ⚠️ Not for non-technical – Requires Docker, infrastructure management
  • ⚠️ 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
Competitive Positioning
  • Open-source freedom – Zero licensing costs, complete customization
  • Technical superiority – Hybrid retrieval often exceeds commercial accuracy
  • Data sovereignty – Self-hosted ensures complete data control
  • Innovation speed – GraphRAG, agentic workflows before many commercial platforms
  • ⚠️ DevOps required – Not for teams without technical resources
  • ✅ 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 – GPT-4, GPT-4o, GPT-4o-mini, GPT-3.5-turbo and all compatible
  • Anthropic – Claude 3.5 Sonnet, Claude 3 Opus, Claude 3 Haiku
  • Google – Gemini Pro and Gemini Ultra via Cloud integration
  • Local models – Ollama, Xinference, IPEX-LLM for complete offline
  • Open-source – Llama 2/3, Mistral, DeepSeek, WizardLM, Vicuna
  • ⚠️ 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
  • Hybrid retrieval – Full-text + vector + multiple recall with fused re-ranking
  • GraphRAG – Relationship-aware knowledge extraction across entities
  • RAPTOR – Hierarchical tree-organized retrieval structures
  • Template-based chunking – Document-type-specific strategies preserving structure
  • Code sandbox – Safe execution for complex analytical tasks
  • ✅ 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
  • Enterprise document analysis – Financial risk, fraud detection, investment research
  • Legal document processing – Structure preservation, citation tracking
  • Healthcare – Clinical decision support with strict data privacy
  • Government/defense – Classified analysis with air-gapped deployment
  • Research & development – Scientific papers, patents, literature review
  • ✅ 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
No- Code Interface & Usability
  • Admin UI (v0.22+) – Basic file upload, dataset management, connections
  • ⚠️ Not true no-code – Docker, OAuth config requires technical setup
  • Power user access – Analysts can maintain after developer setup
  • ⚠️ Single admin login – No RBAC by default, requires custom implementation
  • ✅ 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
Additional Considerations
  • ✅ Open-source freedom – Zero licensing, complete customization
  • ✅ Modern RAG features – GraphRAG, RAPTOR, agentic workflows
  • ✅ Data sovereignty – Self-hosted, air-gapped operation possible
  • ⚠️ DevOps expertise required – Docker, infrastructure management
  • ⚠️ Maintenance burden – Updates, patches, monitoring, backups on user
  • ⚠️ No commercial SLA – Community support only
  • ⚠️ 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
Limitations & Considerations
  • ⚠️ DevOps expertise required – Not for teams without container orchestration skills
  • ⚠️ No managed service – Self-hosted only, no SaaS option available
  • ⚠️ Maintenance burden – Docker updates, security patches, monitoring on user
  • ⚠️ No native channel integrations – API-driven custom development required
  • ⚠️ No built-in analytics – External tools (Prometheus, Grafana) required
  • Best for – Enterprises with DevOps; poor fit for rapid deployment needs
  • ⚠️ 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 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
Pricing & Scalability
N/A
  • 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
N/A
  • ✅ 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 & Documentation
N/A
  • ✅ 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
Core Chatbot Features
N/A
  • ✅ 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
Customization & Flexibility ( Behavior & Knowledge)
N/A
  • ✅ 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

Ready to experience the CustomGPT difference?

Start Free Trial →

Final Thoughts

Final Verdict: RAGFlow vs Stonly

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

When to Choose RAGFlow

  • You value truly open-source (apache 2.0) with 68k+ github stars - vibrant community
  • State-of-the-art hybrid retrieval with multiple recall + fused re-ranking
  • Deep document understanding extracts knowledge from complex formats (OCR, layouts)

Best For: Truly open-source (Apache 2.0) with 68K+ GitHub stars - vibrant community

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 RAGFlow 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

RAGFlow starts at custom pricing, 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 RAGFlow 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: February 2, 2026 | This comparison is regularly reviewed and updated to reflect the latest platform capabilities, pricing, and user feedback.

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.

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 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