openai
OpenAI: gpt-oss-20b (free)
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...
Quality Score
79/100
composite of price, context, capability
Input Price
Free
per 1M tokens
Output Price
Free
per 1M tokens
Context Window
131,072
tokens
- Model ID
- openai/gpt-oss-20b:free
- Vendor
- openai
- Tokenizer
- GPT
- Input Modalities
- text
- Output Modalities
- text
- Max Output
- 8,192 tokens
- Tool Calling
- ✓ supported
- Structured Output
- not supported
- Reasoning Mode
- ✓ supported
- Vision
- text only
- Audio
- no
- Moderated
- yes
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