SF·SIX / MODEL PROFILE
OpenAI GPT-5.5 Pro
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...
OpenAI GPT-5.5 Pro costs $30.00 per 1M input tokens and $180.00 per 1M output tokens at the standard tier, the lowest default-region price among the 1 provider SF·SIX tracks, from OpenAI. Updated ; prices checked .
- Developer
- OpenAI
- Input modalities
- file, image, text
- Output modalities
- text
- Context tokens
- 1,050,000
- Latest price observation
- 2026-10-17
- Lowest paired standard token quote
- $30.00 input / $180.00 output per 1M tokens
Dated price and provider records
| Provider and channel | Input | Output or native rate | Unit and status | Source and observation |
|---|---|---|---|---|
| OpenAIOpenRouter | $30.00 | $180.00 | 1M tokenspriced · USD | OpenRouter2026-10-17 |
| OpenAIOpenRouter · Flex tier | $15.00 | $90.00 | 1M tokenspriced · USD | OpenRouter2026-10-17 |
Batch and free variants
- GPT-5.5 Pro (batch) · from $15.00 input / $90.00 output per 1M tokens
These are dated, non-executable observations. Verify the exact endpoint, price and terms with the source before use. Unknown values are not free.