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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
Where to run OpenAI: GPT-5.5 Pro
AI/ML API: one API key for 400+ models, including most models tracked here · Novita AI: pay-as-you-go APIs for open models (DeepSeek, Qwen, Llama and more) plus GPU cloud. Prices there follow each platform's own catalog and can differ from the list prices tracked here.
Run it on AI/ML API →Run it on Novita AI →
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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 22, 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. 21 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 22, 2026, refreshed daily. How we collect prices