GPT-5.6 Sol just got even cheaper on AI Gateway.

On top of the 50% discount, you now pay 20% less for input and 33% less for output.

On all tiers, including fast mode: ▪︎ 𝚘𝚙𝚎𝚗𝚊𝚒/𝚐𝚙𝚝-𝟻.𝟼-𝚜𝚘𝚕 ▪︎ 𝚘𝚙𝚎𝚗𝚊𝚒/𝚐𝚙𝚝-𝟻.𝟼-𝚜𝚘𝚕-𝚏𝚊𝚜𝚝

https://t.co/3x7LKQudjY

GPT-5.6 Sol is now 50% off a lower price - Vercel

Source: https://vercel.com/changelog/gpt-5-6-sol-is-now-50-percent-off-a-lower-price OpenAI lowered list pricing forGPT-5.6 Sol, and the 50% AI Gatewaydiscountnow applies to the new, lower price through September 18. Input drops 20%, output drops a third.

The discount applies on every OpenAI service tier:

Rates are per million tokens for requests up to 272K tokens. Cached tokens, cache writes, long-context requests above 272K, and the US regional rates all move by the same proportion. See thepricing pagefor all model rates.

The model ID is unchanged, so requests you already send bill at the new price automatically.BYOKrequests bill at your own rate with OpenAI.

import { streamText } from 'ai';const result = streamText({  model: 'openai/gpt-5.6-sol',  prompt: 'Investigate the failing tests and open a PR with a fix.',});

The same AI SDK call, at a new, lower rate.

To use Sol in a coding agent, runvercel ai\-gateway coding\-agents setupto connect your agents to AI Gateway, then selectopenai/gpt\-5\.6\-solin the agent’s model settings. See thecoding agents guidefor setup details.

Try it in theplayground, orbrowse every language modelon the AI Gateway.