OpenAI
GPT-5.6 Sol Pro
Updated: July 2026
GPT-5.6 Sol Pro is the same underlying model as [GPT-5.6 Sol](https://openrouter.ai/openai/gpt-5.6-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
- Context
- 1M
- Input
- $5/M
- Output
- $30/M
Capabilities
VISIONTEXTWEBCODINGTHINKINGWRITING
Similarly Priced Models
| Model | Provider | Context | Input Price | Output Price |
|---|---|---|---|---|
| GPT-5.6 Sol | OpenAI | 1M | $5/M | $30/M |
| Claude Opus 4.8 | Anthropic | 1M | $5/M | $25/M |
| Claude Opus 4.8 | Anthropic | 1M | $5/M | $25/M |
| Claude Opus 4.7 | Anthropic | 1M | $5/M | $25/M |
| Chatgpt 5.5 | OpenAI | 1M | $5/M | $30/M |