AISystem

GPT-6.1 Sol

Sources

Attribution and reporting linked by this record; links do not imply independent verification.

Welcome to September 30, 2026 (theinnermostloop.substack.com)
Source linked by the September 30 issue (openai.com)

OpenAI model reported to approach GPT-6 Astra capability at one-fifth the price.

Visit resource ↗

Development timeline

Newest reporting dates first. Reporting dates may differ from event dates.

2026-10-03: GPT-6.1 Sol reportedly leads MathArena

2026-09-30: OpenAI introduces GPT-6.1 Sol

2026-09-30: Sol's Ultrafast tier reportedly runs on NVIDIA hardware

Knowledge graphopen in browser →

Developed by

OpenAI

Cite or correct this record

Citation formatCitation text

GPT-6.1 Sol
Innermost Loop KB — secondary record
Reporting date: unknown
KB permalink: https://nicholsn.github.io/innermost-loop-kb/systems/gpt-6-1-sol
Attributed sources:
- Welcome to September 30, 2026 — https://theinnermostloop.substack.com/p/welcome-to-september-30-2026
- Source linked by the September 30 issue — https://openai.com/index/introducing-gpt-6-1-sol/
This citation does not imply independent verification of linked-source claims.

Suggest a correction — opens a GitHub draft for you to review and submit.