OpenAI: GPT-5.5 API Pricing
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...
Input / 1M tokens
$5.00
Output / 1M tokens
$30.00
Cost per request (1K in / 500 out)
$0.02
~$20.00 per 1M tokens mixed
Specifications
Context Window 1.1M tokens
Max Output Tokens 128,000
Vision Support Yes
Function Calling No
Streaming Yes
Modality multimodal
Release Date 2026-04-24
Price history will appear here after the first price change is detected.
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