GPT-5 Mini
JSON →A smaller, efficient variant of GPT-5 optimized for faster inference and lower cost.
Specs
context window 272K tokens
max output 128K tokens
input price $0.25 / 1M tokens
output price $2 / 1M tokens
Capabilities
tool-usejson-modestreamingcode-generationfunction-callingvisionprompt-cachingreasoning
Dates
releasedAug 2025
knowledge cutoffJun 2025
Resources
API
full doc /v1/models/gpt-5-mini-2025-08-07