gpt-oss-120b

OpenAI · openai/gpt-oss-120b

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gpt-oss-120b is an open-weight, 117B-parameter Mixture-of-Experts (MoE) language model from OpenAI designed for high-reasoning, agentic, and general-purpose production use cases. It activates 5.1B parameters per forward pass and is optimized...

gpt-oss-120b ranks #16 of 376 models in the default AI Benchmark Hub order (quality first, then cost). At $0.06 blended per million tokens, it is cheaper than 96% of models with published API pricing. Its 131,072-token context window is 2.0× smaller than the catalog median (262,144 tokens).

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Context

Max context: 131072
Max output: 65536

Pricing

Input / 1M: 0.02
Output / 1M: 0.09
Blend / 1M: 0.06

Quality

Quality index: —

Provider

Provider: OpenAI
Moderated: no

Monthly cost at this blended rate

Estimated API spend if every token is billed at $0.06per million (the blend of this model's input and output prices). Real bills depend on the input/output mix.

Tokens / monthEst. cost (USD)
1,000,000$0.06
10,000,000$0.59
100,000,000$5.95

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