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gpt-oss-20bMedium-size
D open-weight model for low latency
| Context window | 131,072 tokens |
| Max output tokens | 131,072 tokens |
Pricing
| Type | Input | Output |
|---|
Parameters
| Parameter | Default | Range |
|---|---|---|
| Max stop sequences | 0 | — |
Supported features
Capabilities
- Streaming
- System Prompt
Endpoints
- Chat Completions
- Batch
Use cases
- text-chat
Model specifications
| Model ID | gpt-oss-20b |
| Family | Other |
| Access type | Open Weights |
| Input modalities | text |
| Output modalities | text |
| Last updated | January 3, 2026 |