GPT OSS 120B vs Mistral Medium 3
Compare GPT OSS 120B by OpenAI against Mistral Medium 3 by Mistral AI, in 2 community votes, gpt oss 120b wins 100% of head-to-head duels, context windows of 131K vs 131K, tested across 54 shared challenges. Updated April 2026.
Which is better, GPT OSS 120B or Mistral Medium 3?
GPT OSS 120B is the better choice overall, winning 100% of 2 blind community votes on Rival. GPT OSS 120B costs $0.18/M input tokens vs $0.4/M for Mistral Medium 3. Context windows: 131K vs 131K tokens. Compare their real outputs side by side below.
Key Differences Between GPT OSS 120B and Mistral Medium 3
GPT OSS 120B is made by openai while Mistral Medium 3 is from mistral. GPT OSS 120B has a 131K token context window compared to Mistral Medium 3's 131K. On pricing, GPT OSS 120B costs $0.18/M input tokens vs $0.4/M for Mistral Medium 3. In community voting, In 2 community votes, GPT OSS 120B wins 100% of head-to-head duels.
In 2 community votes, GPT OSS 120B wins 100% of head-to-head duels. Based on blind community voting from the Rival open dataset of 2+ human preference judgments for this pair.
Pick GPT OSS 120B. In 2 blind votes, GPT OSS 120B wins 100% of the time. That's not luck.
Style Comparison
Mistral Medium 3 uses 3.6x more lists
vsAsk them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
