Jev from a ChatGPT co-creator auto-routes tasks to the cheapest capable model

fsharpman · reddit · 2026-09-22

A post highlights Jev, a project co-created by a ChatGPT co-creator, which automatically decides when to use Haiku vs a stronger model like Fable — picking the cheapest model that gets the job done (e.g., no need for the top model to count letters), cutting time and cost. It can also pick skills automatically.

Related event: Ex-OpenAI researcher launches Jev, a System One "decision model" that skips chat entirely(22 posts)→

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