OpenRouter and Vercel Cut OpenAI's GPT-5.6 Sol API Pricing by 50%

AI aggregation platforms OpenRouter and Vercel have announced a 50% price reduction for accessing OpenAI's flagship model, GPT-5.6 Sol. OpenRouter's pricing has dropped to $2.5 per million input tokens and $15 per million output tokens, while Vercel is offering a similar half-price discount until September 18, 2026. This price cut significantly lowers the barrier to entry for developers wanting to build applications using OpenAI's most advanced model. Industry analysts suggest this is a strategic move to drive adoption and usage metrics for GPT-5.6 Sol on major evaluation platforms. While OpenRouter's discount does not currently have a specified expiration date, Vercel's 50% discount is a one-month promotion valid for both standard and Fast modes. The price reduction halves the previous rates of $5 per million input tokens and $30 per million output tokens.