GPT-6 Sol Pro
GPT-6 Sol Pro is the same underlying model as [GPT-6 Sol](https://openrouter.ai/openai/gpt-6-sol), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. Learn more in OpenAI's docs: https://developers.openai.com/api/docs/guides/reasoning#reasoning-mode
Specifications
| Lab | OpenAI |
|---|---|
| Context window | 1.1M tokens |
| Input price | $2.00/1M |
| Output price | $10.00/1M |
| Release | Sep 2026 |
Strengths
- Pro reasoning mode for complex work
- 1.05M-token context window
- Multimodal file and image input
Weaknesses
- Higher price than standard Sol
- Limited independent evaluation data
Best for
- Difficult coding
- Research agents
- Long-context analysis
In Depth: GPT-6 Sol Pro
Summary
GPT-6 Sol Pro is an AI model from OpenAI.
Released in Sep 2026. It takes file, image, and text input and produces text output, with a context window of 1.1M tokens. Input pricing is $2.00 per 1M tokens and output is $10.00 per 1M tokens on OpenRouter.