Comprehensive side-by-side LLM comparison
Mistral Small 3.1 24B Instruct supports multimodal inputs. Both models have their strengths depending on your specific coding needs.
OpenAI
GPT-OSS-20B is an open-weight large language model with 20 billion parameters from OpenAI's open-source model initiative. It targets deployments requiring a smaller, efficient model that can run on consumer or mid-tier hardware while maintaining strong reasoning and coding capabilities relative to its size.
Mistral AI
Mistral Small 3.1 is a 24-billion-parameter multimodal model from Mistral AI, released in March 2025 as an update to Mistral Small 3 that added vision understanding and expanded the context window from 32K to 128K tokens. The model accepts both text and image inputs, broadening its applicability to document analysis, image-grounded reasoning, and mixed-media workflows without requiring an increase in parameter count. Released under Apache 2.0, it continued Mistral's pattern of incremental capability gains delivered in compact, practically deployable open-weight packages.
4 months newer

Mistral Small 3.1 24B Instruct
Mistral AI
2025-03-17

GPT-OSS-20B
OpenAI
2025-08-05
Context window and performance specifications
Available providers and their performance metrics
GPT-OSS-20B
Hugging Face
Mistral Small 3.1 24B Instruct
GPT-OSS-20B
Mistral Small 3.1 24B Instruct
GPT-OSS-20B
Mistral Small 3.1 24B Instruct