Checked fact 27830 Sep 2026Models and releases

On DeepSWE v1.1, in OpenAI's own evaluation, GPT-6.1 Sol matches GPT-6 Astra at roughly one-fifth of the cost. Quote: "On DeepSWE v1.1, which evaluates complex software-engineering tasks in real codebases, GPT‑6.1 Sol matches GPT‑6 Astra at roughly one-fifth of the cost" (OpenAI post says evaluations were performed in its own research environment or via its API.)

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The exact words it rests on

On DeepSWE v1.1, which evaluates complex software-engineering tasks in real codebases, GPT‑6.1 Sol matches GPT‑6 Astra at roughly one-fifth of the cost

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

The source

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

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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

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“On DeepSWE v1.1, in OpenAI's own evaluation, GPT-6.1 Sol matches GPT-6 Astra at roughly one-fifth of the cost. Quote: "On DeepSWE v1.1, which evaluates complex software-engineering tasks in real codebases, GPT‑6.1 Sol matches GPT‑6 Astra at roughly one-fifth of the cost" (OpenAI post says evaluations were performed in its own research environment or via its API.).” ai notis, checked 30 Sep 2026. Source: Introducing GPT-6.1 Sol (OpenAI). https://ainotis.com/c/278

As a reference (APA style)

ai notis. (2026, September 30). On DeepSWE v1.1, in OpenAI's own evaluation, GPT-6.1 Sol matches GPT-6 Astra at roughly one-fifth of the cost. Quote: "On DeepSWE v1.1, which evaluates complex software-engineering tasks in real codebases, GPT‑6.1 Sol matches GPT‑6 Astra at roughly one-fifth of the cost" (OpenAI post says evaluations were performed in its own research environment or via its API.) [Checked claim 278]. ai notis. https://ainotis.com/c/278

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