# GPT-5.6 Sol pricing drops on AI Gateway, and 50% discount still applies

> Source: <https://vercel.com/changelog/gpt-5-6-sol-pricing-drops-on-ai-gateway-and-50-discount-still-applies>
> Published: 2026-08-21 00:00:00+00:00

OpenAI just lowered list pricing for [GPT-5.6 Sol](https://vercel.com/ai-gateway/models/gpt-5.6-sol). The 50% AI Gateway discount continues and applies to the new list price now through September 18th.

The 50% discount applies on every tier on the OpenAI provider, against the new list price.

Service tier | You pay now (input / output) | New list price (input / output) | You paid before (input / output) |
|---|---|---|---|
Default | $2.00 / $10.00 | $4.00 / $20.00 | $2.50 / $15.00 |
Flex | $1.00 / $5.00 | $2.00 / $10.00 | $1.25 / $7.50 |
Priority (fast mode) | $4.00 / $20.00 | $8.00 / $40.00 | $5.00 / $30.00 |

Rates are per million tokens, for requests up to 272K tokens. The reduction is the same proportion on every tier: input is 20% lower than before and output is a third lower. Cached tokens, cache writes, and long-context requests above 272K move on the same terms, as do the US regional rates. Current rates for every model are on the [pricing page](https://vercel.com/docs/ai-gateway/pricing).

The discount itself has not changed, and neither has the date it ends. This is the same 50% off applied to a lower list price. Billing through AI Gateway picks this up automatically. [BYOK](https://vercel.com/docs/ai-gateway/authentication-and-byok/byok) requests run on your own account and bill at your rate with the provider.

The model ID (`openai/gpt-5.6-sol`

) is unchanged, so requests you already send bill at the new rate with no code change:

Sol takes a reasoning effort up to `max`

for the hardest problems, accepts text, image, and PDF input, and carries a long context window.

To use it in a coding agent, see the [coding agents guide](https://vercel.com/docs/ai-gateway/coding-agents), then run `vercel ai-gateway coding-agents setup`

to connect agents like Claude Code, Codex, OpenCode, Cursor, Pi, and more, and select `openai/gpt-5.6-sol`

inside the agent.

[Try GPT-5.6 Sol in the playground](https://vercel.com/ai-gateway/models/gpt-5.6-sol) and [view all language models](https://vercel.com/ai-gateway/models?type=text) to get started with AI Gateway.