OpenAI Launches GPT-6.1 Sol: High-Performance Model with 95% Lower Cache Costs

OpenAI has unveiled GPT-6.1 Sol, a mid-tier flagship model designed for high cost-efficiency. The model offers performance levels approaching the top-tier Astra model while reducing cached input costs by 95% to $0.10 per million tokens. Available now for Plus, Pro, Business, Enterprise, and Edu subscribers via ChatGPT Work and Codex, the model shows significant improvements in coding and computer operation tasks. OpenAI also announced plans to release an even faster version, GPT-6.1 Sol Ultrafast, in the future.