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OpenAI: gpt-oss-120b Parameter Count

gpt-oss-120b has 117B parameters. Its size score is 52.

Data sourced from OpenRouter API and manual data collection | Last updated: Nov 3, 2026, 8:01 AM UTC

Parameters
117B
Size score
52
Architecture
Dense

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Frequently asked questions

How many parameters does gpt-oss-120b have?

gpt-oss-120b has 117B parameters. Its size score is 52.