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gpt-oss-20b
OpenAI
Claude 3.5 Sonnet Frontier Claude 3.7 Sonnet Frontier Claude 3.7 Sonnet (high output) Frontier Claude 3.7 Sonnet (thinking) Frontier Claude 4 Opus Frontier Claude 4 Opus (thinking) Frontier Claude 4 Sonnet Frontier Claude 4 Sonnet (thinking) Frontier Claude 4.1 Opus Frontier Gemini 2.5 Pro Frontier

gpt-oss-20b

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

Model 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
Try on Simtheory

Supported Parameters

Temperature

Supported

Controls randomness: Lower values make output more deterministic, higher values more creative.

Range: 0.0 - 1.0 Default: 0.6

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