Jev just got competition from Amazon and Cloudflare. Both have released open-source decision models.
Like TypeSafe’s Jev, they pick from choices you supply and return probabilities. Give them a support ticket and ask which team should handle it, or an agent’s proposed action and ask whether it should proceed. No paragraph of generated text required.
Amazon’s Strands Decider has just 2 billion parameters and runs locally on a CPU or GPU. Amazon released the weights, training data and training scripts, and reports roughly 153 ms median latency for small tasks on an M3 MacBook.
Cloudflare’s Clef comes in 27B and 9B versions, supports images and doubles Jev’s context window to 64K. It also supports Jev’s API format. In Cloudflare’s own tests, Clef beat Jev on three of four workflow evaluations, while Clef-flash returned decisions in about 39 ms versus Jev’s 524 ms median.