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OpenAI: gpt-oss-20b
openai/gpt-oss-20b
↓ runs free on your own hardware⚙ tool calling
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...
specs & pricing
- Type
- text
- Provider
- openai
- Model ID
- openai/gpt-oss-20b
- Capabilities
- tools, reasoning
- Context window
- 131K tokens
- Self-hostable
- Yes — runs on your own GPU
- Input price
- $0.033 / 1M tokens
- Output price
- $0.15 / 1M tokens
Cloud price is billed from prepaid credits when a request fails over to the cloud. Open-weight models run free on GPUs you own — the gateway routes to your nodes first.