OpenAI: gpt-oss-120b (openai/gpt-oss-120b) costs $0.15 per 1M prompt tokens and $0.6 per 1M completion tokens, has a 131,072-token context window, and supports tool calling, structured outputs, reasoning and response format. Data updated 2026-10-30.
- Prompt price
- $0.15 / 1M tokens
- Completion price
- $0.6 / 1M tokens
- Context
- 131,072 tokens
- Input modalities
- text
- Output modalities
- text
- Tokenizer
- GPT
- Instruct type
- —
- Knowledge cutoff
- 2024-06-30
- Hugging Face
- openai/gpt-oss-120b
Last price change: 2026-10-15
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...