About
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...
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Pricing
Input
$0.00
per 1M tokens
Output
$0.00
per 1M tokens
Blended
$0.00
per 1M tokens
Cheaper than 92% of models. Median price is $0.67/1M tokens.
Cost Calculator
Tokens per day1M
100K100M
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Monthly
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Performance
Context Window
131K
tokens
Larger than 27% of models
Max Output
131K
tokens
100% of context
Context Window Comparison
DeepSeek: DeepSeek V3.2
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OpenAI: gpt-oss-120b
131KSame
MoonshotAI: Kimi K2 0711
131KSame