Codestral

Codestral is Mistral AI’s first code-focused generative model, introduced on May 29, 2024. Released under their "Non‑Production License", it's designed for research and testing scenarios . Boasting 22 billion parameters, it serves via a shared API endpoint supporting instruction-completion and fill-in-the-middle (FIM) workflows . Training on 80+ programming languages (such as Python, Java, C/C++, JavaScript, Bash, Swift, Fortran) enables wide-scale code generation, test writing, debugging support, and even middle-segment patching . With a 32k token context window, it excels in benchmarks like RepoBench, HumanEval FIM, MBPP, CruxEval, and Spider (SQL), outperforming competitors in its class . A 2025 update, Codestral 25.01, doubles speed via an enhanced architecture and tokenizer, solidifying its status in FIM performance .