# GPT-OSS 120B

> OpenAI's open-weight reasoning model. Many hosts serve it, several of them free and very fast.

- Maker: OpenAI (https://platform.openai.com/docs/models)
- Type: Reasoning, open weights
- Artificial Analysis Intelligence Index: Not scored yet
- Context window: 131K
- Output speed: 247 tokens a second
- Scores checked 30 October 2026 at https://artificialanalysis.ai/leaderboards/models (listed there as "gpt-oss-120b (low)")

## Where to use it through an API

- Groq: model id `openai/gpt-oss-120b` (free key available)
- Fireworks: model id `accounts/fireworks/models/gpt-oss-120b`
- Cerebras: model id `gpt-oss-120b`
- Hugging Face: model id `openai/gpt-oss-120b`
- SambaNova: model id `gpt-oss-120b` (free key available)

## Use it free

- Groq free API key: how to get one: https://www.multiscreenai.com/free/groq-api-key
- SambaNova free API key: how to get one: https://www.multiscreenai.com/free/sambanova-api-key

## Use it with every other AI at once

MultiScreenAI (https://www.multiscreenai.com) puts GPT-OSS 120B on one screen next to ChatGPT, Claude, Gemini and 300+ models: one message goes to every panel, and a timed, blind test mode shows which answers best. Pro is free with a follow on X, and you use your own API keys.
AI agents and coding harnesses (Claude Code, Codex, Cursor, Gemini CLI) can ask GPT-OSS 120B and other models at once through the MCP server at https://www.multiscreenai.com/api/mcp/ai; setup: https://www.multiscreenai.com/mcp