GPT-5.5 Pro

Retired

GPT-5.5 Pro is the higher-accuracy GPT-5.5 variant for harder questions and more demanding professional work, rolling out to ChatGPT Pro, Business, and Enterprise users with API availability coming soon.

Retired

The first-party endpoint is retired. Partner-channel availability is tracked separately.

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Input, output, and cached rates with source and verification time, plus same-workload cost examples.

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Modality:LLM

Release:Apr 23, 2026

Docs Pricing Status page 📊 Price Matrix 🧮 Spend Calculator 📢 Changes Model pricing page Vendor API pricing Check stack cost impact

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Monthly spend on GPT-5.5 Pro

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⚡GPT-5.5 Pro Comparisons & Scenario Guides

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❓GPT-5.5 Pro Frequently Asked Questions

How much does GPT-5.5 Pro cost per 1M tokens?▼

No direct token rate recorded for GPT-5.5 Pro. Check the vendor pricing page.

What is the context window for GPT-5.5 Pro?▼

Context window varies by deployment and provider channel.

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