OpenAI: gpt-oss-120b API Pricing
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...
Input / 1M tokens
$0.04
Output / 1M tokens
$0.18
Cost per request (1K in / 500 out)
$0.0001
~$0.13 per 1M tokens mixed
Specifications
Context Window 131K tokens
Max Output Tokens 0
Vision Support No
Function Calling No
Streaming Yes
Modality text
Release Date 2025-08-05
Price history will appear here after the first price change is detected.
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