Comprehensive side-by-side LLM comparison
GPT OSS 20B is available on 4 providers. Both models have their strengths depending on your specific coding needs.
Mistral AI
Codestral 22B was developed as a specialized coding model from Mistral AI, designed to excel at code generation, completion, and understanding tasks. Built with 22 billion parameters optimized for programming, it serves developers requiring advanced assistance with software development across multiple programming languages.
OpenAI
GPT-OSS 20B was created as a smaller open-source variant, designed to balance capability with accessibility for researchers and developers. Built with 20 billion parameters, it provides a more approachable entry point for those seeking to work with open-source language models while benefiting from OpenAI's architectural insights.
1 year newer

Codestral-22B
Mistral AI
2024-05-29

GPT OSS 20B
OpenAI
2025-08-05
Context window and performance specifications
Available providers and their performance metrics

Codestral-22B

GPT OSS 20B
Groq

Codestral-22B

GPT OSS 20B

Codestral-22B

GPT OSS 20B
Novita
OpenAI
ZeroEval