gpt-oss-120b is 83.3× cheaper per million tokens (blended). Mistral Medium 3.5 has the larger context window (262,144 vs 131,072 tokens, 2.0×). gpt-oss-120b is open-weights; the other is not.

Mistral Medium 3.5 vs gpt-oss-120b

Live catalog fields. Best-in-row is highlighted.

Mistral Medium 3.5

Mistral · mistralai__mistral-medium-3-5

gpt-oss-120bopen

OpenAI · openai__gpt-oss-120b

Identity

Fieldmistralai__mistral-medium-3-5openai__gpt-oss-120b
ProviderMistralOpenAI
Slugmistralai__mistral-medium-3-5openai__gpt-oss-120b
Statuslivelive
Open weightsNoYes
License——
HuggingFace—openai/gpt-oss-120b

Quality

Fieldmistralai__mistral-medium-3-5openai__gpt-oss-120b
Quality index (0–100)——

Cost

Fieldmistralai__mistral-medium-3-5openai__gpt-oss-120b
Input $ / 1M tokens$1.50$0.02
Cached input $ / 1M—$0.02
Output $ / 1M tokens$7.50$0.09

Context

Fieldmistralai__mistral-medium-3-5openai__gpt-oss-120b
Max context tokens262,144131,072
Max output tokens209,71565,536

Modalities

Fieldmistralai__mistral-medium-3-5openai__gpt-oss-120b
Inputtext, image, filetext
Outputtexttext