GPT-OSS 120B

OpenAI · reasoning · 128K context · 0.75× credits

OpenAI's open-weight reasoning model for production agents and complex tasks.

Model ID: mixerlead-ai/openai/gpt-oss-120b

Best for

OpenAI's open-weight reasoning model. It thinks through the problem before giving the final answer.

Maths, logic puzzles, planning and data analysis

Agents that need to reason and call tools

Anything where accuracy matters more than speed

Only the final answer appears in content, which keeps your app simple.

Set max_tokens to 1000 or more so it has room to think.

Excellent value at 0.75×.