GPT-5.5 Pro
As of Oct 4, 2026, the cheapest GPT-5.5 Pro API price is $27.2727 per 1M input tokens (Poe) and $163.6364 per 1M output tokens (Poe). GPT-5.5 Pro is offered by 20 providers in the gpt-pro family, reasoning enabled. OpenAI's own rate is $180 per 1M output tokens.
API pricing by provider
Metered per-token prices. Cheapest input and output are highlighted; † marks a context-tier surcharge. How prices are ranked.
| Poe | Cheapest$27.2727 | Cheapest$163.6364 | — | — | 400k |
| AIHubMix | †$30 | $180 | — | — | 1.1M |
| Cloudflare AI Gateway | $30 | $180 | — | — | 1.0M |
| CrossModel | †$30 | $180 | — | — | 1.1M |
| Eden AI | †$30 | $180 | — | — | 1.1M |
| FastRouter | $30 | $180 | — | — | 1.1M |
| Impossibl | †$30 | $180 | $3 | — | 1.1M |
| Kilo Gateway | $30 | $180 | — | — | 1.1M |
| DevPass (LLM Gateway) | †$30 | $180 | — | — | 1.1M |
| LLM Gateway | †$30 | $180 | — | — | 1.1M |
| Neon | †$30 | $180 | — | — | 1.1M |
| OpenAI | †$30 | $180 | — | — | 1.1M |
| OpenCode Zen | $30 | $180 | $30 | — | 1.1M |
| OpenRouter | †$30 | $180 | — | — | 1.1M |
| Opper | $30 | $180 | — | — | 1.1M |
| OrcaRouter | †$30 | $180 | — | — | 1.1M |
| Requesty | $30 | $180 | — | — | 1.1M |
| Vercel AI Gateway | †$30 | $180 | — | — | 1.0M |
| ZenMux | †$30 | $180 | — | — | 1.1M |
| Venice AI | $37.5 | $225 | — | — | 1.0M |
GPT-5.5 Pro pricing FAQ
What is the cheapest GPT-5.5 Pro API?
As of Oct 4, 2026, Poe has the lowest GPT-5.5 Pro output price at $163.6364 per 1M tokens, and Poe has the lowest input price at $27.2727 per 1M tokens. Prices are metered per-token rates in USD; free tiers and subscription plans are excluded.
How much does GPT-5.5 Pro cost on OpenAI?
OpenAI charges $30 per 1M input tokens and $180 per 1M output tokens for GPT-5.5 Pro.
How many providers offer GPT-5.5 Pro?
20 providers list GPT-5.5 Pro on Sovyron; 20 of them sell it at a metered per-token price.
Is GPT-5.5 Pro free?
No provider in the Sovyron catalog lists a free tier for GPT-5.5 Pro.
What is the context window of GPT-5.5 Pro?
GPT-5.5 Pro supports a 1.1M-token context window and up to 128k output tokens.
Token cost calculator
What a month costs at one provider's published rates. Enter the tokens you expect to send and receive; cached tokens use the cached-input price where the provider lists one, and count as ordinary input where it does not.
Estimated
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