GPT-5.6 Sol is available through AI Gateway, and for a limited time you can use it at 50% off. If you are already using AI Gateway, point to the openai/gpt-5.6-sol model and the discounted pricing applies automatically — no promo code needed.
The promotion is available for Unified Billing users only (not Bring Your Own Keys). Load credits onto AI Gateway and start sending requests to openai/gpt-5.6-sol.
Discounted pricing during the promotion:
| Usage | Promotional price | Standard price |
|---|---|---|
| Input | $2.50 per 1M tokens | $5 per 1M tokens |
| Output | $15 per 1M tokens | $30 per 1M tokens |
| Cache read | $0.25 per 1M tokens | $0.50 per 1M tokens |
The promotion runs through September 18, 2026. After that date, GPT-5.6 Sol requests return to standard pricing.
For more details, refer to the Unified Billing documentation and the GPT-5.6 Sol model page.
Source: Cloudflare
