
Chainlit – Build AI applications fast and securely
Chainlit is an open-source Python framework for building conversational AI applications with features like authentication, multimodal support, data persistence, observability, and integration with popular LLMs and frameworks.
Chainlit
"Build AI applications fast and securely"

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| Feature | ||||
|---|---|---|---|---|
Upvotes | 2 | 3,280 | 184 | 351 |
Avg. Rating | 4.0 | 4.7 | 5.0 | 4.3 |
Slogan | Build AI applications fast and securely | Your AI assistant for conversation, research, and productivity—now with apps and advanced voice features. | Models for text, vision, audio, and beyond—state-of-the-art AI for everyone. | The AI code editor that knows your codebase |
Category | ||||
Pricing Model | Freemium Enterprise | Freemium Enterprise | Freemium Pay-per-Use Enterprise Contact for Pricing | Freemium Enterprise Contact for Pricing |
Monthly Pricing (USD) | $0 – $99 / month Min$0 / month Mid— Max$99 / month Free tier | N/A | N/A | N/A |
Pricing Details | Free tier available, Pro at $99/month, Enterprise plan available (contact for pricing) | Free tier, Plus at $20/month, Team at $25–30/user/month, Pro at $200/month, Enterprise custom-priced | The Transformers library itself is open source and free for both personal and commercial use. Hugging Face offers PRO accounts at $9/month, Team plans at $20/user/month, and Enterprise from $50/user/month. Compute/Spaces hardware (various CPUs/GPUs/Accelerators) are available via pay-per-use, e.g. GPU rates start at $0.50/hour (AWS/GCP). All users get free monthly inference credits, with billing options for extra usage. Enterprise plans feature custom pricing and added support. | Hobby (Free), Pro $20/month ($20 usage pool), Pro+ $60/month (triple usage), Ultra $200/month (20x Pro usage), Teams $40/user/month, Enterprise: contact for pricing |
Platforms | ||||
Target Audience | Software Developers, AI Enthusiasts | AI Enthusiasts, Software Developers, Content Creators, Marketing Professionals, Product Managers, Entrepreneurs, Educators, Students, Remote Workers, Customer Service, Scientists, Financial Experts, Business Executives | AI Enthusiasts, Software Developers, Scientists, Content Creators, Educators, Students | Software Developers, AI Enthusiasts, Students, Educators |
Website |
Quick Alternatives Overview
ChatGPT
Transformers
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Use this page as a starting point to evaluate Chainlit alongside similar options. Our directory focuses on practical details that matter for adoption—capabilities, pricing signals, integrations, and real audiences—so you can shortlist with confidence and move from exploration to evaluation faster.
For a structured head‑to‑head, try the comparison view: Compare AI tools. To stay current with launches, model updates, and research breakthroughs, visit AI News. New to the space? Sharpen your understanding with AI Fundamentals.
Before adopting any tool, model your total cost at expected usage, verify integration coverage and API quality, and review privacy, security, and compliance. A short pilot on a real workflow will reveal reliability and fit quickly. Bookmark this site to track updates to Chainlit and the broader ecosystem over time.
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User Reviews
Based on 1 review
Rating Distribution
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All Reviews (1)
Dylan McCormick
12 days ago
Rich LLM integration, still maturing
Tried Chainlit for three weeks building a chatbot with LangChain and OpenAI-setup was quick, and the observability UI is fantastic for debugging. Still, I hit some rough edges with external API integration.
How Chainlit Works
Pay-as-you-go pricing means Chainlit costs scale with your actual usage. No wasted spend on unused seats or features you don't need yet. Usage-based billing keeps costs aligned with real adoption.
Key Features & Capabilities
Memory across sessions
Multi-turn conversations feel natural, like talking to a knowledgeable colleague. Available across Web App, CLI Tool, and API for consistent adoption.
Device-agnostic access
Runs on Web App, CLI Tool, and API so teams stay productive on their preferred devices. Available across Web App, CLI Tool, and API for consistent adoption.
SDKs to accelerate build-out
Official SDKs handle authentication, retries, and error handling automatically.
Open-source transparency
Open source means community feedback, transparent security, and rapid iteration.
Automation-first workflows
Automation frees time for strategic initiatives while maintaining consistency. Automation handles the repetitive work so teams can focus on strategy.
Common Use Cases
Software DevelopersAccelerate code reviews
Developers use Chainlit to write code faster, catch bugs early, and refactor legacy systems. Automation handles the repetitive work so teams can focus on strategy.
Software DevelopersAutomate repeatable work
Bots, rules, and triggers ensure nothing gets stuck in manual queues. Automation handles the repetitive work so teams can focus on strategy.
Software DevelopersAnalytics acceleration
Analysts use Chainlit to assemble data, explore patterns, and publish findings faster. Analytics and reporting surface the metrics needed to act quickly.
Pricing & Plans
Free tier available, Pro at $99/month, Enterprise plan available (contact for pricing)
Usage Model: API Calls, Pay-as-You-Go — ensuring you only pay for what you actually use.
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Frequently Asked Questions about Chainlit
What is Chainlit and what does it do?
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Does Chainlit offer APIs or SDKs?
Is Chainlit open source?
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What do users say about Chainlit?
Is the information about Chainlit up-to-date and verified?
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Is Chainlit a reliable long-term choice?
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