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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 to run on a single H100 GPU with native MXFP4 quantization. The model supports configurable reasoning depth, full chain-of-thought access, and native tool use, including function calling, browsing, and structured output generation.

Input:$0.1 / 1M tokens
Output:$0.5 / 1M tokens
Context:131072 tokens
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Category Rankings
academia#9
programming#9
science#14

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Model Parameters
7 available
frequency_penalty
-202
include_reasoning
max_tokens
presence_penalty
-201.999
stop
temperature
012
top_p
011
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