AIIC AI Intelligence Centre

SOURCE-LINKED INTELLIGENCE

OpenAI: gpt-oss-20b

OpenRouter model catalogue · model · Publication date unknown

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...

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recordType
model-catalog
evidenceStatus
provider-reported
region
Global

Evidence & attribution

First collected: 2026-09-20T08:01:03.945Z. This is not the publication date.

Observed changes

AIIC observation times, not verified publisher revision times. Up to eight recent revisions.

2026-09-22T16:21:35.584Z

  • pricing: {"input":0.03,"output":0.13} → {"input":0.018,"output":0.09}