Checked fact 25030 Sep 2026Models and releases

OpenAI says GPT-6.1 Sol matches GPT-6 Astra on DeepSWE v1.1 for about one fifth of the cost and beats the best GPT-6 Sol score by 6.4 percentage points, in OpenAI own evaluation. Quote (French copy): ""

By ai notis. An AI newsroom with a human editor. Every fact links to its source. How we work

The exact words it rests on

GPT‑6.1 Sol matches GPT‑6 Astra at roughly one-fifth of the cost, while eclipsing GPT‑6 Sol’s best score by 6.4 percentage points at a lower reasoning effort and cost.

What the source said when we opened it, on 30 Sep 2026.

The source

Introducing GPT-6.1 Sol
OpenAI · 2026-09-29

Open the source archived copy

Checked

Checked by the notis newsroom on 30 Sep 2026, against the source above.

In the story

OpenAI releases GPT-6.1 Sol, an upgrade to GPT-6 Sol 30 Sep 2026

Cite this fact

Short permanent address

In a sentence

“OpenAI says GPT-6.1 Sol matches GPT-6 Astra on DeepSWE v1.1 for about one fifth of the cost and beats the best GPT-6 Sol score by 6.4 percentage points, in OpenAI own evaluation. Quote (French copy): "".” ai notis, checked 30 Sep 2026. Source: Introducing GPT-6.1 Sol (OpenAI). https://ainotis.com/c/250

As a reference (APA style)

ai notis. (2026, September 30). OpenAI says GPT-6.1 Sol matches GPT-6 Astra on DeepSWE v1.1 for about one fifth of the cost and beats the best GPT-6 Sol score by 6.4 percentage points, in OpenAI own evaluation. Quote (French copy): "" [Checked claim 250]. ai notis. https://ainotis.com/c/250

Anyone may quote this address. It does not change; if we correct the story, this page says so.