GPT OSS 20B
OpenAI
- Context window
- 131K 131,072 tokens
- Max output
- 131K 131,072 tokens
- Input / Output
- text → text
API pricing
USD / 1M tokens
| Input | Output | Cached input |
|---|---|---|
|
|
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Timeline
- · Open weights · evidence link
- · Weights version · evidence link
Input / output price · USD / 1M tokens
| Model | Evidence links | Input / output price |
|---|---|---|
openai/gpt-oss-20bstandard | openrouter | $0.03 / $0.13 |
openai/gpt-oss-20b:batchbatch | openrouter | $0.024 / $0.112 |
openai/gpt-oss-20bstandard | vercel-gateway | $0.03 / $0.14 |
Specifications
GPT OSS 20B is a model from OpenAI with open weights, first recorded on 15 Sep 2026; its release date is not established. The context window is 131,072 tokens. The maximum output is 131,072 tokens. Pricing is $0.03 per million input tokens and $0.13 per million output tokens.
- Context window
- 131,072
- Max output
- 131,072
- Input
- text
- Output
- text
- Weights
- Open
- Input · USD / 1M tokens
- $0.03
- Output · USD / 1M tokens
- $0.13
- Cached input · USD / 1M tokens
- $0.03
Questions
What is the context window of GPT OSS 20B?
The context window is 131,072 tokens. The maximum output is 131,072 tokens.
How much does GPT OSS 20B cost?
Pricing is $0.03 per million input tokens and $0.13 per million output tokens. Cached input is $0.03 per million.
Are the weights of GPT OSS 20B publicly available?
Yes. OpenAI publishes the weights.
When was GPT OSS 20B released?
Its release date is not established. Signal Forge first recorded it on 15 Sep 2026.