chainlit.io

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Assistant · Vendor site 2026-10-04

Chainlit is an open-source Python framework for building conversational AI applications with customizable chat UIs, authentication, and deployment options. Teams install the package locally and can embed copilots or ship Slack, Discord, and Teams bots while integrating LangGraph, OpenAI, and other providers.

Updated 2026-10-04View sources

Official website

Category: Assistant
Free access: Framework is open source and installed via pip; the marketing site does not list a hosted SaaS price.
API access: Not confirmed

Is chainlit.io right for you?

A good fit for

Developers building chat or copilot experiences in Python who want a UI layer with OAuth and multi-channel deployment hooks.

Before you choose

No public /pricing page exists; production hosting and any paid cloud offering are not described with USD tiers on chainlit.io.

Build conversational AI apps

Chainlit markets developer tools to build, improve, and scale AI applications with Python backends, rich chat frontends, and deployment patterns from standalone web apps to embedded copilots.

What it can do

Features & capabilities

Unknown is different from unavailable. Each fact carries its own evidence.

Capability	Value	Evidence	Checked
Install	Homepage documents installing with pip and running chainlit run against Python app logic.	Facts sourced	2026-10-04
Integrations	Lists integrations with OpenAI, Mistral, LangGraph, LlamaIndex, HuggingFace, and OAuth providers.	Facts sourced	2026-10-04
Community	Site cites 50k+ monthly developers and 9K GitHub stars for the framework.	Facts sourced	2026-10-04

Understand the total cost

chainlit.io pricing & plans

Free

Framework is open source and installed via pip; the marketing site does not list a hosted SaaS price.

Access: Framework is open source and installed via pip; the marketing site does not list a hosted SaaS price.

Explore pricing & history

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The practical questions

Frequently asked questions

What is chainlit.io used for?

Does chainlit.io have a free plan?

Framework is open source and installed via pip; the marketing site does not list a hosted SaaS price.. This record lists ongoing free access; check the plan limits before starting.

How much does chainlit.io cost?

No paid monthly price is listed; this record treats the product as free to start. See the plan cards for entitlements, billing commitments and seat minimums.

Can I use chainlit.io through an API?

Not confirmed. API access and subscription access may have different terms; consult the linked sources.

What should I check before choosing it?

No public /pricing page exists; production hosting and any paid cloud offering are not described with USD tiers on chainlit.io.

Price history

No retained pricing changes yet. A current price alone does not establish a historical trend.

How this profile is supported

Identity and profile

Reviewed vendor source

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2026-10-04

Facts apply to the named version and check date. Send a sourced correction if something changed.