> ## Documentation Index
> Fetch the complete documentation index at: https://docs.apiyi.com/llms.txt
> Use this file to discover all available pages before exploring further.

# gpt-5.5-pro is live (SVIP group only)

> OpenAI's strongest reasoning model gpt-5.5-pro ships on the official-relay channel: Terminal-Bench 2.0 82.7%, Expert-SWE 73.1%, GDPval 84.9%, 1.05M context. Tiered pricing: \$30/\$180 for 0-272K, \$60/\$270 for 272K-∞ per 1M tokens. SVIP group only — single calls can cost several dollars, NOT exposed on the Default group to prevent accidental misuse.

**2026/5/3 23:00 (UTC+8)** · New Model · OpenAI

🚀 **gpt-5.5-pro is live (SVIP group only)** — OpenAI's strongest reasoning model `gpt-5.5-pro` ships on the official-relay channel: Terminal-Bench 2.0 **82.7%**, Expert-SWE **73.1%**, GDPval **84.9%**, 1.05M context + 128K output. Tiered pricing: \$30/\$180 for 0–272K, \$60/\$270 for 272K–∞ per 1M tokens.

⚠️ **SVIP group only**: NOT exposed on the Default group — a single call can cost several dollars to over ten dollars. Confirm the use case is worth it, and always set hard budget caps in your application layer before calling.

<Frame>
  <img src="https://mintcdn.com/apiyillc/_VzXicItDKpC5c0P/images/gpt-5-5-pro-pricing.png?fit=max&auto=format&n=_VzXicItDKpC5c0P&q=85&s=e3b5a76501732134712113732fdbe284" alt="gpt-5.5-pro tiered pricing: 0-272K input $30 output $180; 272K-∞ input $60 output $270" width="1652" height="662" data-path="images/gpt-5-5-pro-pricing.png" />
</Frame>

📖 Launch notes: [/en/news/gpt-5-5-pro-launch](/en/news/gpt-5-5-pro-launch)

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