GPT-5.5

Model access and billing

What is GPT-5.5 on Allgate?

This Chat model from OpenAI is listed in the Allgate public catalogue. Its API model ID is gpt-5.5. Allgate supplies unified access and billing; the underlying model comes from a third-party provider.

How much does GPT-5.5 cost?

$4.5 input and $27 output, per million tokens. These are Allgate public catalogue base rates in USD. Account discounts are shown separately; check your applicable price before a request. Additional service modes or generation settings may have separate limits.

Input · Official $5 Save 10%

Output · Official $30 Save 10%

Official source and date

Standard API, up to 272K input tokens; uncached input. Cache, tools, regional and speed-tier premiums excluded.

Verified 2026-10-22 · USD

View official pricing source ↗

Can I call this model now?

The catalogue snapshot dated 2026-10-24 reports an available route. Availability can change. Check current routing, account access and prepaid balance before sending a request.

How do I connect it?

Create an Allgate API key, use the exact model ID gpt-5.5, and consult the request reference for /v1/chat/completions. Image and video workflows can also start in Studio. Keep the API key on your server.

API reference · Compare models and prices · Image and video Studio