GPT-5.5 is OpenAI’s frontier model designed for complex professional workloads, building on GPT-5.4 with stronger reasoning, higher reliability, and improved token efficiency on hard tasks. It features a 1M+ token...
by Openai|1M context|$2.50/M input tokens|$15.00/M output tokens
Endpoints
Available providers for this model, with details on pricing, context limits, and real-time health metrics.
