GPT-5.4 Pro
JSON →A professional-grade variant of GPT-5.4 with enhanced reasoning and longer context handling for enterprise use.
Specs
context window 1.1M tokens
max output 128K tokens
input price $30 / 1M tokens
output price $180 / 1M tokens
Capabilities
tool-usejson-modestreamingreasoningcode-generationfunction-callingprompt-cachingvision
Dates
releasedMar 2026
knowledge cutoffDec 2025
Resources
API
full doc /v1/models/gpt-5.4-pro