GPT-5
JSON →The fifth generation of OpenAI's large language model, offering advanced reasoning and multimodal capabilities.
Specs
context window 272K tokens
max output 128K tokens
input price $1.25 / 1M tokens
output price $10 / 1M tokens
Capabilities
tool-usejson-modevisionprompt-cachingstreamingreasoningcode-generationfunction-calling
Dates
releasedNov 2025
knowledge cutoffJun 2025
Resources
API
full doc /v1/models/gpt-5