gpt-oss-20b is an open-weight 21B parameter model released by OpenAI under the Apache 2.0 license. It uses a Mixture-of-Experts (MoE) architecture with 3.6B active parameters per forward pass, optimized for...
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Models
Every model in the catalog with source-linked pricing, context limits, provider availability, and published benchmark results.
| Model | Creator | Score | Inputs | Context | Input | Output | Released | Compare |
|---|---|---|---|---|---|---|---|---|
| OpenAI: gpt-oss-20bopenai/gpt-oss-20b | OpenAI |
20.7 | 131.072K | $0.03 | $0.13 | 2025-08-05 |