# GPT-5.5 Pro

> GPT-5.5 Pro is the higher-accuracy GPT-5.5 variant for harder questions, deeper research, and more demanding end-to-end tasks.

Agent resources: the index of everything machine-readable is https://www.ohmygpt.com/llms.txt; the integration skill (endpoints, auth, SDK and coding-tool setup) is https://www.ohmygpt.com/skill.md.

- Model ID: `openai/gpt-5.5-pro`
- Live status and providers as JSON, no key needed: https://api.ohmygpt.com/v1/models/openai/gpt-5.5-pro
- Released: 2026-04-24
- Context: 1.1M tokens
- Max output: 128K tokens
- Input: text, image; output: text
- Capability score: 163 (as of 2026-11-10, see https://www.ohmygpt.com/rankings.md)

## Prices (USD)

| Item | Price | Unit |
| --- | --- | --- |
| Input | $27.00–$54.00 | per 1M tokens |
| Output | $162.00–$243.00 | per 1M tokens |
| Web search | $0.009 | per request |

## Providers

This model chooses its provider itself; a provider prefix is not accepted.

| Provider | Pinned model ID | Location | Input | Output | Trains on your data |
| --- | --- | --- | --- | --- | --- |
| OpenAI | — | United States | $27.00–$54.00 | $162.00–$243.00 | no |

## Endpoints

| API | Request | model |
| --- | --- | --- |
| OpenAI Chat | POST https://api.ohmygpt.com/v1/chat/completions | `openai/gpt-5.5-pro` |
| OpenAI Responses | POST https://api.ohmygpt.com/v1/responses | `openai/gpt-5.5-pro` |
| Anthropic Messages | POST https://api.ohmygpt.com/v1/messages | `openai/gpt-5.5-pro` |
| Google Gemini | POST https://api.ohmygpt.com/v1/models/openai/gpt-5.5-pro:generateContent | `openai/gpt-5.5-pro` |

## Example

```bash
curl https://api.ohmygpt.com/v1/responses \
  -H "Authorization: Bearer $OHMYGPT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-5.5-pro",
    "input": "Hello"
  }'
```

Web page: https://www.ohmygpt.com/models/openai/gpt-5.5-pro