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OpenAI: gpt-oss-20b

modeltested · static-verifiedscore 20/100signed passport ✓published 446d ago · verified 2026-10-24

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...

Declared tools (3)

text->texttool-callingstructured-outputs

model:openrouter:openai/gpt-oss-20b