kitio.aiChainlit vs Codeflash
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Chainlit is completely free, while Codeflash is freemium.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Chat UI for Python logic
- Agent step visualization
- OAuth authentication
- Slack, Discord and Teams bots
- LangGraph and LlamaIndex support
- Automatic code optimization
- Correctness verification
- Benchmarking
- GitHub app
- VS Code extension
| Feature | Chainlit | Codeflash |
|---|---|---|
| Best for | Open-source Python framework for building conversational AI apps | AI that finds faster versions of your code and verifies them |
| Category | Coding | Coding |
| Pricing model | Free | Freemium |
| Starting price | Free | $20/mo |
| Free plan | Yes, fully free | Yes |
| Made by | Chainlit | Codeflash |
| Based in | – | United States |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
|
Pricing compared
Chainlit is completely free, while Codeflash is freemium.
Free plan
Cheapest paid plan
Top plan
Free trial
2 plans
Free
Free
- 25 function optimizations / month
- Public GitHub projects only
- Community support
Pro
$20/mo
- Per user
- 500 optimizations / user / month
- Private GitHub projects
- Zero data retention, 14-day trial
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Chainlit
- Free and open source
- Working chat app in a few lines
- Many deployment targets
- Python only
- Less flexible than a custom frontend
- Advanced UI changes need React work
Codeflash
- Verifies speedups before suggesting
- Free for open source
- Works in CI
- Limited language support
- Gains depend on code style
Which one should you choose?
Choose Chainlit if you want:
- Free and open source
- Working chat app in a few lines
- Many deployment targets
Watch out: python only.
Choose Codeflash if you want:
- Verifies speedups before suggesting
- Free for open source
- Works in CI
Watch out: limited language support.
Chainlit vs Codeflash FAQ
What is the difference between Chainlit and Codeflash?
Chainlit: Open-source Python framework for building conversational AI apps. Codeflash: AI that finds faster versions of your code and verifies them. Both are coding tools.
Is Chainlit or Codeflash cheaper?
Chainlit is completely free, while Codeflash is freemium.
Do Chainlit and Codeflash have free plans?
Chainlit: Yes, fully free. Codeflash: Yes.
Who makes Chainlit?
Chainlit is made by Chainlit.
Who makes Codeflash?
Codeflash is made by Codeflash, based in United States.
Which should I choose, Chainlit or Codeflash?
Choose Chainlit if you value free and open source and working chat app in a few lines. Choose Codeflash if you value verifies speedups before suggesting and free for open source.