The Open Engine Company blog

What we think, and what we tested.

  1. October 2026

    The SDLC, reimagined for the post-review era

    How teams can use zeroshot to build, test and review changes while people spend more time deciding what to build.

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  2. October 2026

    A small model with a zeroshot loop matches a larger one at 58% of the cost

    On 20 ProgramBench tasks, GPT-5.6 Luna in a build-and-check loop reached GPT-5.6 Sol's single-shot score for a median 58% of Sol's cost, and at Sol's cost scored higher on 15 of 20.

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