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. **Cost note:** pro mode spends far more...
Specifications
| Provider | OpenAI |
|---|---|
| Intelligence Index | Not yet benchmarked |
| Context window | 1,050,000 tokens (1.1M) |
| Input price | $2 / 1M tokens |
| Output price | $10 / 1M tokens |
| Input modalities | file, image, text |
| Output modalities | text |
| Model ID | openai/gpt-5.6-sol-pro |
Pricing is per 1M tokens, indicative pricing via OpenRouter (updated 2026-10-05); a provider's own list price may differ. Intelligence Index via Artificial Analysis.
Frequently asked questions
How much does GPT-5.6 Sol Pro cost?
Indicative pricing (via OpenRouter, updated 2026-10-05) is $2 per 1M input tokens and $10 per 1M output tokens. A provider's own list price may differ. On Vincony, GPT-5.6 Sol Pro is available on credit-based pricing alongside 750+ other models.
What is GPT-5.6 Sol Pro's context window?
GPT-5.6 Sol Pro supports a context window of up to 1,050,000 tokens (1.1M), which is how much text it can consider at once.
Who makes GPT-5.6 Sol Pro?
GPT-5.6 Sol Pro is built by OpenAI. You can access it — and compare it against other providers' models — through Vincony's multi-model platform.
How do I use GPT-5.6 Sol Pro?
You can use GPT-5.6 Sol Pro directly through OpenAI, or via Vincony, which aggregates 750+ models (including GPT-5.6 Sol Pro) into one interface with side-by-side comparison and credit-based pricing.