GPT-5.5 Pro
Rank #253
openai
openai/gpt-5.5-pro-20260423
Usage data date 2026-07-26 · updated daily
Usage and specs
Daily rank#253
Daily tokens663.8M
Daily requests49.1K
Daily change
−51.0%
Context window1.1M
Released
What is GPT-5.5 Pro
GPT-5.5 Pro is OpenAI’s high-capability model optimized for deep reasoning and accuracy on complex, high-stakes workloads. It features a 1M+ token context window (922K input, 128K output) with support for text and image inputs, and is designed for long-horizon problem solving, agentic coding, and precise execution across multi-step workflows.
GPT-5.5 Pro capabilities
Input: File、Image、Text Output: Text
GPT-5.5 Pro API pricing
Input · per 1M tokens$30.00
Output · per 1M tokens$180.00
List prices in USD; see each provider’s site for current terms.
Tools built on this model
ChatGPT
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GPT-4
Best for people or teams exploring model training and use; not suitable for high-risk decisions without human review and current official terms.
DALL·E 3
Best for people or teams exploring model training and use; not suitable for high-risk decisions without human review and current official terms.
Codex
Best for professional developers and engineering teams that want to delegate development, refactoring, and ops work to an AI agent; not for non-programmers or users who only need simple code completion.
StudyCorgi ChatGPT Detector
Suitable for students and teachers who need a free, fast way to screen essays and assignments; not suitable for users who must scan very long documents or batches of files.