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OpenAI: GPT-5.5

openai/gpt-5.5

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...

specs & pricing
Type
text
Provider
openai
Model ID
openai/gpt-5.5
Capabilities
vision, tools, reasoning
Context window
1.1M tokens
Input price
$5.50 / 1M tokens
Output price
$33.00 / 1M tokens

Cloud price is billed from prepaid credits when a request fails over to the cloud. Open-weight models run free on GPUs you own — the gateway routes to your nodes first.