gpt-oss-120b is 32.4× cheaper per million tokens (blended). gpt-oss-120b has the larger context window (131,072 vs 65,536 tokens, 2.0×). gpt-oss-120b is open-weights; the other is not.

Nano Banana 2 (Gemini 3.1 Flash Image Preview) vs gpt-oss-120b

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

Nano Banana 2 (Gemini 3.1 Flash Image Preview)

Google · google__gemini-3.1-flash-image-preview

gpt-oss-120bopen

OpenAI · openai__gpt-oss-120b

Identity

Fieldgoogle__gemini-3.1-flash-image-previewopenai__gpt-oss-120b
ProviderGoogleOpenAI
Sluggoogle__gemini-3.1-flash-image-previewopenai__gpt-oss-120b
Statuslivelive
Open weightsNoYes
License——
HuggingFace—openai/gpt-oss-120b

Quality

Fieldgoogle__gemini-3.1-flash-image-previewopenai__gpt-oss-120b
Quality index (0–100)——

Cost

Fieldgoogle__gemini-3.1-flash-image-previewopenai__gpt-oss-120b
Input $ / 1M tokens$0.50$0.02
Cached input $ / 1M—$0.02
Output $ / 1M tokens$3.00$0.09

Context

Fieldgoogle__gemini-3.1-flash-image-previewopenai__gpt-oss-120b
Max context tokens65,536131,072
Max output tokens58,98265,536

Modalities

Fieldgoogle__gemini-3.1-flash-image-previewopenai__gpt-oss-120b
Inputimage, texttext
Outputimage, texttext