Devstral Small 1.1: Revolutionizing Software Engineering with Advanced Agentic Coding & Lightweight Performance

Devstral Small 1.1 is a software engineering-specific large language model jointly developed by Mistral AI and All Hands AI. It is fine-tuned from Mistral-Small-3.1, with its vision encoder removed to focus solely on text-based programming tasks. Below is a detailed introduction: Technical Specifications Model Parameters and Context Window: Devstral Small 1.1 has 24B parameters and supports a 128k token context window, enabling it to handle extensive code files and long-context programming tasks. Tokenizer: It uses a custom Tekken tokenizer with a 131k vocabulary size, which helps improve the model’s understanding and processing of code-related text. Performance Metrics: On the SWE-bench …