OpenRouter model
OpenAI: gpt-oss-20b
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...
- Provider
- OpenRouter
- Availability
- Available
- Model ID
- openai/gpt-oss-20b
- Snapshot
- 2026-08-28
OpenAI: gpt-oss-20b model overview
OpenAI: gpt-oss-20b is listed in the public Swarm catalog through OpenRouter. This page summarizes the verified catalog fields used by Swarm without claiming real-time access for every provider account.
- Provider
- OpenRouter
- Family
- OpenRouter
- Context window
- 131.1K tokens
- Thinking support
- low · medium · high
- Availability status
- Available
- Catalog ID
- openrouter/openai/gpt-oss-20b
Public catalog snapshot. Catalog availability is not a real-time provider status or an access guarantee.