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gpt-oss-20b

gpt-oss-20b

OpenAI

OpenAI's smaller open-weight model for powerful reasoning and agentic tasks.

Try on Simtheory
Claude 3.7 Sonnet Frontier Claude 3.7 Sonnet (high output) Frontier Claude 3.7 Sonnet (thinking) Frontier Claude 4.5 Opus Frontier Claude 4.5 Sonnet Frontier Claude 4.5 Sonnet (thinking) Frontier Claude 4.6 Opus Frontier Claude 4.6 Opus Max Frontier Claude 4.6 Sonnet Frontier Claude 4.6 Sonnet Max Frontier

Specifications

Context window 128,000 tokens
Max output 16,384 tokens
Knowledge cutoff June 2025
Multipart messages No
Vision capabilities No

Default Parameters

Temperature 0.6
Top P 1.0
Frequency penalty 0.0
Presence penalty 0.0
Top K 40

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