LLM · OpenAI

GPT-6.1 Sol

OpenAI describes gpt-6.1-sol as near-Astra performance at a lower cost. The model page states the same 1,050,000 token context window, 922,000 maximum input tokens, and 128,000 maximum output tokens. Prompts with more than 272K input tokens are priced at 2x input and 1.5x output for the whole request. The stored rate is the standard short-context price.

Checked 19 Oct 2026https://developers.openai.com/api/docs/models/gpt-6.1-sol