GPT-5

OpenAI's flagship model for coding, reasoning, and agentic tasks across domains.

Model Specifications

Context window 272,000 tokens
Max output 128,000 tokens
Knowledge cutoff October 2024
Multipart messages Yes
Vision capabilities Yes

Default Parameters

Temperature 0.3
Top P 1.0
Frequency penalty 0.0
Presence penalty 0.0

More models from OpenAI