Models / openai / GPT-5

GPT-5

JSON →
openaillm

The base GPT-5 model, offering broad general-purpose language understanding and generation.

textstreamingcode-generationfunction-callingjson-modetool-usevisionprompt-cachingreasoning
homepage ↗docs ↗
Specs
Context & limits
272K
context window
128K
max output
Lifecycle
Dates
released2025-08-07
knowledge cutoff2025-04-01
Resources
homepagehttps://openai.com/index/gpt-5/ ↗
docshttps://platform.openai.com/docs/models ↗