Comprehensive side-by-side LLM comparison
GPT OSS 120B leads with 21.8% higher average benchmark score. Mistral Small 3.1 24B Instruct supports multimodal inputs. GPT OSS 120B is available on 5 providers. Overall, GPT OSS 120B is the stronger choice for coding tasks.
OpenAI
GPT-OSS 120B was developed as an open-source model release from OpenAI, designed to provide the research and developer community with access to a capable language model. Built with 120 billion parameters, it enables experimentation, fine-tuning, and deployment in contexts where open-source licensing and transparency are valued.
Mistral AI
Mistral Small 3.1 24B Instruct was developed as the instruction-tuned version of the 3.1 base model, designed to deliver improved instruction-following with refinements from the updated architecture. Built to serve diverse applications with enhanced reliability, it advances the Small model line's capabilities.
4 months newer

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

GPT OSS 120B
OpenAI
2025-08-05
Context window and performance specifications
Average performance across 2 common benchmarks

GPT OSS 120B

Mistral Small 3.1 24B Instruct
Available providers and their performance metrics

GPT OSS 120B
DeepInfra
Groq
Novita
OpenAI
ZeroEval

GPT OSS 120B

Mistral Small 3.1 24B Instruct

GPT OSS 120B

Mistral Small 3.1 24B Instruct

Mistral Small 3.1 24B Instruct