Is GPT OSS 120B or Mistral Medium 3.5 cheaper?

GPT OSS 120B is cheaper on output tokens ($0.68 vs $7.84 per 1M).

Which has the larger context window, GPT OSS 120B or Mistral Medium 3.5?

Mistral Medium 3.5 has the larger context window (262K tokens).

GPT OSS 120B vs Mistral Medium 3.5

GPT OSS 120B is cheaper on output tokens, while Mistral Medium 3.5 offers a larger context window. Choose GPT OSS 120B or Mistral Medium 3.5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GPT OSS 120B	Mistral Medium 3.5
Provider	LowRouter	LowRouter
Input / 1M tokens	$0.17	$1.57
Output / 1M tokens	$0.68	$7.84
Context window	131K	262K
Parameters	—	—
Open weights	Yes	Yes
Released	Aug 2025	Apr 2026

GPT OSS 120B details →Mistral Medium 3.5 details →

FAQ

Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.