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OpenAI: GPT-5.5 Pro API Pricing
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...
How much does OpenAI: GPT-5.5 Pro cost for a real workload?
At 10M input + 2M output tokens per month, OpenAI: GPT-5.5 Pro costs about $660 ($300 input + $360 output). Try your own volumes in the cost calculator.
What is the official OpenAI: GPT-5.5 Pro price?
| Official (openai) | Catalog (OpenRouter) | |
|---|---|---|
| Input /1M | $30 | $30 |
| Output /1M | $180 | $180 |
| Cached input /1M | — | — |
✓ Matches the official list price. Source: openai official pricing page, checked 2026-10-21.
What are cheaper alternatives to OpenAI: GPT-5.5 Pro?
- OpenAI: GPT-5.2 Pro — $21 in / $168 out per 1M
- OpenAI: GPT-5 Pro — $15 in / $120 out per 1M
- OpenAI: GPT-5.5 Pro (batch) — $15 in / $90 out per 1M
- OpenAI: GPT-5.4 Pro (batch) — $15 in / $90 out per 1M
- OpenAI: o3 Pro — $20 in / $80 out per 1M
- OpenAI: GPT-5.2 Pro (batch) — $10.5 in / $84 out per 1M
Compare OpenAI: GPT-5.5 Pro with other models
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Frequently asked questions
How much does OpenAI: GPT-5.5 Pro cost?
OpenAI: GPT-5.5 Pro costs $30 per 1M input tokens and $180 per 1M output tokens (list price, snapshot October 21, 2026). At 10M input + 2M output tokens per month that is about $660.
What is the context window of OpenAI: GPT-5.5 Pro?
OpenAI: GPT-5.5 Pro has a context window of 1,050,000 tokens and can return up to 128,000 output tokens per response.
What are cheaper alternatives to OpenAI: GPT-5.5 Pro?
Cheaper models include OpenAI: GPT-5.2 Pro ($21 in / $168 out), OpenAI: GPT-5 Pro ($15 in / $120 out), OpenAI: GPT-5.5 Pro (batch) ($15 in / $90 out). See the full list on this page.
Is OpenAI: GPT-5.5 Pro free to use?
No. OpenAI: GPT-5.5 Pro is a paid model at $30 input / $180 output per 1M tokens. 20 free models are listed on the free models page.
What is the official price of OpenAI: GPT-5.5 Pro?
On openai's official pricing page (checked 2026-10-21), OpenAI: GPT-5.5 Pro is listed at $30 per 1M input tokens and $180 per 1M output tokens. The catalog price tracked on this page matches it exactly.
Provider: openai · Model ID: openai/gpt-5.5-pro · Modality: text+image+file->text · Price snapshot October 21, 2026, refreshed daily. How we collect prices