ChatGPT
A practical default for mixed everyday tasks, provided important facts and citations receive a separate review. Verification level not recorded
openai/gpt-oss-20b
Rank #49
openai
openai/gpt-oss-20b
Usage data date 2026-09-12 · updated daily
Usage and specs
Daily rank#49
Daily tokens258.4B
Daily requests64.4M
Daily change
−41.3%
Released
What is 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...
openai/gpt-oss-20b capabilities
Input: Text Output: Text
openai/gpt-oss-20b API pricing
Input · per 1M tokens$0.05
Output · per 1M tokens$0.20
USD list-price snapshot, not independently verified; confirm current pricing and terms on the provider site before purchase.
Tools built on this model
ChatGPT
A practical default for mixed everyday tasks, provided important facts and citations receive a separate review. Verification level not recorded