GPT-5.5 Pro
Highest-accuracy GPT-5.5 tier for slower, precision-heavy reasoning and coding
openai/gpt-5.5-pro- Lab
- OpenAI
- Family
- gpt-pro
- Providers
- 11
- Context
- 1,050,000
- Output limit
- 128,000
- Knowledge
- 2025-12
- Release
- 2026-04-23
- Updated
- 2026-04-23
- Weights
- Closed
- Input
- Output types
- Capabilities
- tools, reasoning, structured
Providers
11| Provider | Lab | Model ID | Context | Output | Price | Reasoning | Tool Call | Structured | Temperature |
|---|---|---|---|---|---|---|---|---|---|
| CrossModel | OpenAI | openai/gpt-5.5-pro | 1,050,000 | 128,000 | $30.00 / $180.00 | Yes | Yes | Yes | No |
| FastRouter | OpenAI | openai/gpt-5.5-pro | 1,050,000 | 128,000 | $30.00 / $180.00 | Yes | Yes | Yes | No |
| Kilo Gateway | OpenAI | openai/gpt-5.5-pro | 1,050,000 | 128,000 | $30.00 / $180.00 | Yes | Yes | - | No |
| LLM Gateway | OpenAI | gpt-5.5-pro | 1,050,000 | 128,000 | $30.00 / $180.00 | Yes | Yes | Yes | No |
| OpenAI | OpenAI | gpt-5.5-pro | 1,050,000 | 128,000 | $30.00 / $180.00 | Yes | Yes | Yes | No |
| OpenRouter | OpenAI | openai/gpt-5.5-pro | 1,050,000 | 128,000 | $30.00 / $180.00 | Yes | Yes | Yes | No |
| OrcaRouter | OpenAI | openai/gpt-5.5-pro | 1,050,000 | 128,000 | $30.00 / $180.00 | Yes | Yes | Yes | No |
| Poe | OpenAI | openai/gpt-5.5-pro | 400,000 | 128,000 | $27.27 / $163.64 | Yes | Yes | No | No |
| Venice AI | OpenAI | openai-gpt-55-pro | 1,000,000 | 128,000 | $37.50 / $225.00 | Yes | Yes | Yes | No |
| Vercel AI Gateway | OpenAI | openai/gpt-5.5-pro | 1,000,000 | 128,000 | $30.00 / $180.00 | Yes | Yes | Yes | Yes |
| ZenMux | OpenAI | openai/gpt-5.5-pro | 1,050,000 | 128,000 | $30.00 / $180.00 | Yes | Yes | Yes | No |
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