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Flint: an open AI agent model that fixes bugs in your code
Flint is Recursive's AI model for coding agents: it reads a project, finds bugs, and writes tests. With serious hardware, you get a fully open helper instead of paying per request to a closed API.
It's an AI model you can plug into a coding agent — a program that reads your project and edits it itself.
When it helps
Useful if you're building your own coding agent and want full control without per-request API fees. Skip it if you only have a laptop or just want a ready-made assistant.
Pros
- Fully open under the Apache 2.0 license, free to use
- Built specifically for code work, not adapted from a chatbot
- Solved 74.2% of real bugs in Recursive's own benchmark
- No per-request fees to a closed API
Cons
- Needs a 64GB-memory Mac or a 48GB graphics card
- Won't fit on a regular laptop or home graphics card
- Renting cloud GPU to try it can erase the savings
How to set it up — step by step
- 1Check you have a Mac with 64GB+ memory or a 48GB graphics card — Flint won't run without it.
- 2Open the Flint model page on Hugging Face at https://huggingface.co/RecursiveSI/flint.
- 3Send your agent the text from the block below.
- 4Wait for the agent to point you to a quantized version and the vendor's local run command.
- 5Launch Flint locally following the instructions and confirm it answers a test request.
- 6Ask Flint to fix a real bug in your project and review the result before applying it.
Text for your agent
Copy this and send it to your agent — Claude Code, Codex, any of them:
Open Recursive's Flint model card (https://huggingface.co/RecursiveSI/flint), check whether there is a quantized build for my GPU or Mac, and explain how to run it locally using the vendor's engine linked on the card.
This is a server-grade model — an ordinary laptop will not run it. Based on its size (about 40 billion parameters), a rough estimate calls for a Mac with at least 64 GB of memory or a graphics card with 48 GB; this is an approximate calculation, not an official requirement.
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