GPT-5.5

OpenAI · openai/gpt-5.5

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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...

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Context

Max context: 1050000
Max output: 128000

Pricing

Input / 1M: 5.00
Output / 1M: 30.00
Blend / 1M: 17.50

Quality

Quality index: 93.7

Provider

Provider: OpenAI
Moderated: yes