OpenAI gpt-oss 120B

OpenAI gpt-oss 120B is a 120B open-weight language model released under the Apache 2.0 license. It is well-suited for reasoning and function calling use cases. The model is optimized for deployment on consumer hardware.

The 120B model achieves near-parity with OpenAI o4-mini on core reasoning benchmarks, while running on a single 80GB GPU.

Managed API (MaaS) specifications

Pricing

Model ID gpt-oss-120b-maas
Modalities
Text Input and output
Image Not supported
Audio Not supported
Video Not supported
Capabilities
Consumption options
Supported regions

Model availability

  • Global: global

ML processing

  • Multi-region: us
Quotas
  • global: 131,072 maximum output, 131,072 context length
  • us-central1: 131,072 maximum output, 131,072 context length
Versions
  • gpt-oss-120b-maas
    • Launch stage: GA
    • Release date: August 13, 2025

Deploy as a self-deployed model

To self-deploy the model, navigate to the gpt-oss 120B model card in the Model Garden console and click Deploy model. For more information about deploying and using partner models, see Deploy a partner model and make prediction requests.