Sign up

gpt-oss-120b

OpenAI

OpenAI's 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

More from OpenAI

GPT-5.4

Frontier

OpenAI's frontier model for complex professional work. Features 1.05M context window, 128k output tokens, and reasoning token support. Reasoning.effort supports: …

1,050,000 ctx 128,000 out

GPT-5.4 (max)

Frontier

OpenAI's frontier model configured with high reasoning effort for complex professional tasks.

1,050,000 ctx 128,000 out

GPT-5.4 (thinking)

Frontier

OpenAI's frontier model configured with high reasoning effort for complex professional tasks.

1,050,000 ctx 128,000 out