System One Model Jev Leads a New Engineering Paradigm
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Diogo Almeida (co-founder of TypeSafe AI) proposed and popularized the concept of the System One model: fast, cheap non-generative models that return structured choices or scores. On November 12, 2026, he elaborated on this idea at the AI Engineer Code Summit, advocating for integrating System One models into code to achieve "reliable intelligence," saying such models are being used by engineers to build "smart software," and calling to "automate everything." The paradigm is still in its promotion stage; the report does not mention specific deployed products or adoption data.
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- Latent SpaceThe Jev Revolution: What Engineers Are Already Building with System One Models
At the AI Engineer Code Summit, TypeSafe AI co-founder Diogo Almeida argued that System One models (non-generative, fast and cheap models that return structured choices or scores) should be integrated into code to deliver "reliable intelligence", and called on engineers to "automate everything".
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