GPT-6 Sol is OpenAI's September 22nd, 2026 mid-tier for finishing everyday work at $2/$10. Our tests score helpfulness 96.0, instruction following 96.0, and comprehension 96.0 — strong practical help, below GPT-6 Astra and GPT-5.6 Sol. Empathy is 90.0: clearer and shorter than 5.6, less warm than Claude. Creative writing is 79.0: blunt, get-it-done prose. Speed is 80.0. A cheaper workhorse when you want the job done, not a storyteller or a flagship.