GPT-5
JSON →The base GPT-5 model, offering broad general-purpose language understanding and generation.
Specs
context window 272K tokens
max output 128K tokens
input price $1.75 / 1M tokens
output price $14 / 1M tokens
Capabilities
streamingcode-generationfunction-callingjson-modetool-usevisionprompt-cachingreasoning
Dates
releasedAug 2025
knowledge cutoffApr 2025
Resources
API
full doc /v1/models/gpt-5-2025-08-07