OpenRouter and Vercel cut GPT-5.6 Sol prices in half

OpenRouter, a global AI aggregation platform, announced on X that it's halving the cost of OpenAI's top model, GPT-5.6 Sol. Now, input costs 2.5 dollars per million tokens, down from 5, and output costs 15, down from 30. Vercel is also offering a limited-time 50% discount until September 18, 2026, for standard and fast modes. Industry analysts at SemiAnalysis think this is a smart marketing move, since these platforms are key sources for evaluating AI models, and the discount will draw more users to GPT-5.6 Sol.