GPT-OSS 120B

JSON →
openai llm
text

A 120-billion-parameter open-source language model from OpenAI designed for research and broad text generation tasks.

context window 131K tokens
max output 33K tokens
input price $0.15 / 1M tokens
output price $0.6 / 1M tokens
streamingcode-generationfunction-callingtool-usejson-modeopen-weightsreasoning
releasedMar 2025
knowledge cutoffJun 2024
full doc /v1/models/gpt-oss-120b