Comprehensive side-by-side LLM comparison
GPT OSS 20B leads with 14.0% higher average benchmark score. GPT OSS 20B is available on 4 providers. Overall, GPT OSS 20B is the stronger choice for coding tasks.
Gemma 2 9B was created as a more compact open-source model, designed to deliver capable performance with reduced computational requirements. Built with 9 billion parameters and instruction tuning, it serves applications where efficiency and accessibility are valued alongside the benefits of open-source availability.
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

Gemma 2 9B
2024-06-27

GPT OSS 20B
OpenAI
2025-08-05
Context window and performance specifications
Average performance across 1 common benchmarks

Gemma 2 9B

GPT OSS 20B
Available providers and their performance metrics

Gemma 2 9B

GPT OSS 20B
Groq

Gemma 2 9B

GPT OSS 20B

Gemma 2 9B

GPT OSS 20B
Novita
OpenAI
ZeroEval