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What is Chainlit?

Chainlit is an open-source framework designed to help developers build conversational AI applications quickly and efficiently. Created by the Chainlit team, it solves the problem of integrating AI models into user-friendly chat interfaces with minimal boilerplate code. The core capabilities include a Python SDK for building chat apps, built-in authentication, deployment options as standalone web apps or embedded copilots, and integrations with popular LLM providers like OpenAI, Mistral, LangGraph, and LlamaIndex. It also supports customization of the frontend and creation of custom chat components. Chainlit is ideal for developers and enterprises looking to ship ambitious and reliable AI applications, from simple chatbots to complex multi-step conversational workflows. The framework is trusted by over 50,000 monthly developers and has a strong community on GitHub and Discord.

AI Tool Review Summary

Performance Score

4.5/5

Content/Output Quality

High, consistent, and on-brand

Interface

Clean and minimal

AI Technology
LLMNLP
Purpose of Tool

To enable developers to build and deploy conversational AI applications with ease.

Compatibility

Works with Python, integrates with OpenAI, Mistral, LangGraph, LlamaIndex, HuggingFace, and more.

Pricing

Open-source with free self-hosted option; cloud hosting available with paid tiers.

Features

Features with the highest value for users are highlighted here.

Python-based chat app development

Multi-platform deployment

OAuth authentication support

Customizable frontend and components

Integrations with OpenAI, Mistral, LangGraph, LlamaIndex, HuggingFace

Step-by-step processing and feedback collection

Open-source framework with active community

How It Works

1

Install Chainlit

Run 'pip install chainlit' to install the Python package.

2

Write your app

Create a Python script with your conversational logic using Chainlit's decorators and API.

3

Run the app

Execute 'chainlit run app.py' to start the development server and open the chat interface.

4

Deploy and share

Deploy as a standalone web app, embed as a copilot, or integrate with Slack/Discord/Teams.

Who Is It For?

AI Developers

Enterprise Teams

Startups

Data Scientists

Product Managers

Open Source Contributors

Freelance Developers

Tech Educators

Hobbyists

Customer Support Teams

Pricing

Free (Self-Hosted)

$0/free
  • Open-source framework
  • Unlimited apps
  • Community support
Popular

Cloud Starter

$29/monthly
  • Hosted platform
  • Basic analytics
  • Email support

Cloud Pro

$99/monthly
  • Advanced analytics
  • Priority support
  • Custom domain

Enterprise

Custom/monthly
  • Dedicated infrastructure
  • SSO
  • SLA

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Pros & Cons

Pros

  • Simplifies building conversational AI apps from Python scripts.
  • Offers extensive deployment options and integrations.

Cons

  • May require Python knowledge for full customization.
  • Advanced features might have a learning curve for beginners.

FAQs

Just Launched

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Rating

5.0

Pros

Cons

Quick Chainlit Comparision

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Analytics of Chainlit - Build AI applications

Website traffic and keyword analysis.

Live dataFeb 2026 – Apr 2026

Monthly visits

60.01K

-3.8% vs prior month

Avg. visit duration

00:00:45

M 4 2026 snapshot

Pages / visit

1.98

M 4 2026 snapshot

Bounce rate

42.78%

Lower is better

All traffic · Worldwide

Weekly estimate · Feb 1, 2026 – Apr 29, 2026

12K12.47K12.93K13.4K13.86KFeb 1Feb 15Mar 1Mar 15Mar 29Apr 8Apr 22Apr 29

Peak week: 13.86K (Feb 1, 2026)Low week: 12K (Apr 1, 2026)WoW: 0.0%Derived from monthly estimates · SimilarWeb-equivalent

Release History

0 releases published

No releases yet.

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