gpt-oss-120b is 92.6× cheaper per million tokens (blended). Pareto 26.9 has the larger context window (262,144 vs 131,072 tokens, 2.0×). gpt-oss-120b is open-weights; the other is not.

gpt-oss-120b vs Pareto 26.9

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

gpt-oss-120bopen

OpenAI · openai__gpt-oss-120b

Pareto 26.9

Unbiased · unbiased__pareto-26.9

Identity

Fieldopenai__gpt-oss-120bunbiased__pareto-26.9
ProviderOpenAIUnbiased
Slugopenai__gpt-oss-120bunbiased__pareto-26.9
Statuslivelive
Open weightsYesNo
License——
HuggingFaceopenai/gpt-oss-120b—

Quality

Fieldopenai__gpt-oss-120bunbiased__pareto-26.9
Quality index (0–100)——

Cost

Fieldopenai__gpt-oss-120bunbiased__pareto-26.9
Input $ / 1M tokens$0.02$2.50
Cached input $ / 1M$0.02$0.25
Output $ / 1M tokens$0.09$7.50

Context

Fieldopenai__gpt-oss-120bunbiased__pareto-26.9
Max context tokens131,072262,144
Max output tokens65,536131,072

Modalities

Fieldopenai__gpt-oss-120bunbiased__pareto-26.9
Inputtexttext, image
Outputtexttext