GPT-5.6 Sol
GPT-5.6 Sol: advanced reasoning on Plus and Pro with expanded messages and tools.
On pricing, GPT-5.6 Sol sits in advanced reasoning models with GPT-5.6 on Plus. Sol shows up on multi-step tasks: document breakdowns, tool chains, heavier drafts. Plus also expands messages, uploads, image creation, deep research, memory, projects, custom GPTs, and Codex.
Plan details — on chatgpt.com/pricing. Back to the ChatGPT review or catalog.