OpenAI
GPT-5.5 Pro API Pricing
Highest-reasoning Pro tier of GPT-5.5. Streaming NOT supported. Knowledge cutoff Dec 1 2025. Batch: $15.00/$90.00 per MTok.
Verified against OpenAI’s pricing page on 2026-07-02.
View source ↗Facts
Specs
- FamilyGPT-5
- API IDgpt-5.5-pro
- ModalityMultimodal
- Context window1.1M tokens
- Max output128K tokens
- Release dateNot published
Pricing (per 1M tokens)
- Input$30.00 / 1M tokens
- Output$180.00 / 1M tokens
- Cached input—
- Cache write—
- Batch discount50%
Capabilities
vision, tool-use, reasoning, function-calling, structured-outputs
Notes
Highest-reasoning Pro tier of GPT-5.5. Streaming NOT supported. Knowledge cutoff Dec 1 2025. Batch: $15.00/$90.00 per MTok.
Worked cost examples
Estimated monthly cost on three common usage shapes
| Workload | Est. monthly cost |
|---|---|
Chatbot 800 input / 200 output tokens per request, 100,000 requests/month | $6,000 |
RAG pipeline 6,000 input / 700 output tokens per request, 30,000 requests/month | $9,180 |
Batch summarization 20,000 input / 1,500 output tokens per request, 5,000 requests/month | $4,350 |
Price history
Changes we have documented since we began tracking
No price changes recorded since we began tracking.
GPT-5.5 Pro pricing FAQ
- How much does GPT-5.5 Pro cost per 1M tokens?
- GPT-5.5 Pro costs $30.00 per 1M input tokens and $180.00 per 1M output tokens.
- How much does GPT-5.5 Pro cost per request?
- A typical request of 800 input and 200 output tokens costs about $0.06 on GPT-5.5 Pro.
- Is GPT-5.5 Pro cheaper than GPT-5.4?
- GPT-5.5 Pro is more expensive than GPT-5.4 on input tokens, by about 1100%.
- Does GPT-5.5 Pro have cache pricing?
- No cache discount is documented for GPT-5.5 Pro on the provider's pricing page.