Overview
- Recursive made Flint available on Hugging Face under an Apache 2.0 license after releasing it publicly on Wednesday, October 21, 2026, so developers can run the model locally and modify it freely.
- Flint is a 40-billion-parameter mixture-of-experts coding model that activates about 2.5 billion parameters per task to run on ordinary laptops and in tests outperformed other models under 50B on coding benchmarks.
- The company says its automated research system, the Eureka Machine, handled most steps of Flint’s development and produced optimizations such as a sparser architecture, low-bit training that cut model size roughly 71%, and custom compute kernels.
- Critics and some lawmakers have raised safety and policy concerns about letting AI systems design new AI, while Recursive says humans oversee and can stop Eureka’s work and presents Flint as a demonstration of cheaper, faster model development.
- Recursive’s launch builds on recent industry work using AI agents for research and follows the company’s May emergence with $650 million in funding and an AWS compute deal, which together aim to let a small team scale model work with fewer human researchers.