OpenAI gpt-oss 20B

OpenAI gpt-oss 20B is a 20B 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 20B model delivers similar results to OpenAI o3-mini on common benchmarks and can run on edge devices with 16GB of memory, making it ideal for on-device use cases, local inference, or rapid iteration without costly infrastructure.

View model card in Model Garden

Property Description
Model ID gpt-oss-20b-maas
Usage types
Versions
  • gpt-oss-20b-maas
    • Launch stage: GA
    • Release date: August 13, 2025
Supported regions

Model availability
  • United States
    • us-central1

ML processing
  • United States
    • Multi-region
Quota limits

us-central1:

  • QPM: 1,200
  • Input TPM: 1,300,000
  • Output TPM: 250,000
  • Max output: 32,768
  • Context length: 131,072
Pricing See Pricing.