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Gpt oss 20b
GPT-OSS-20B is a compact open-weight MoE model from OpenAI containing 21B parameters (3.6B active). It uses grouped multi-query attention for low-latency inference on consumer hardware under an Apache 2.0 license.
Thinking Mode
Parameters
21000000000 B
Context
131,000 tokens
Released
May 8, 2025
Leaderboards
Average Score combining domain-specific Autobench scores; Higher is better
Performance vs. Industry Average
Context Window
Gpt oss 20b has a smaller context window than average (453k tokens), with a context window of 131k tokens.