Jev Daily

ScaleDown claims 77.2 vs Jev's 72 on DecisionBench

Neal Patel launched a three model family and put Jev's DecisionBench score in the launch post, 77.2 against 72. The number comes from the people selling the model, and nobody outside has run it yet.

Built with it

Open SWE routing numbers land: 973 threads, merge rate unchanged

The detail behind LangChain's 64% cost cut is now out: NeilXbt's writeup says 973 threads were split half routed, half always on GPT-6 Astra, with median cost per thread $0.94 against $2.61 and merged PR rates of 29.2% versus 27.3%. A separate run that always used the fast model was killed within a day after engineers reported low output quality.

Harrison Chase
@hwchase17
X
router lives in the harness, not a gateway, bc the harness knows the task
Oct 13, 2026 · View on X

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Someone measured it

ScaleDown says its Classify model scores 77.2 on DecisionBench, Jev 72

Neal Patel launched Constrained Decoding Models, three single-task models for classify, extract and summarize, and claims 77.2% on DecisionBench against Jev's 72%. He also claims 1M tokens of multimodal input, 31x larger than Jev, at $0.05 per million input tokens with output free. OpenRouter lists the family at $0.04 per million input for launch.

Neal Patel
@neal_k_patel
X
1M tokens of multimodal (text + image) input, 31x larger than Jev
Oct 13, 2026 · View on X

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The case against

Almeida says the Jev clones copy the interface and miss the reliability

Diogo Almeida, asked by Ash about everyone copying Jev, said the copies take the interface without understanding reliability. His worry is that people who try a weak clone will conclude the whole class of decision models is not useful. In a separate post he said he is anti public benchmark even when his side is ahead.

Diogo Almeida
@CompleteSkeptic
X
they copy the interface, but I don't think they understand the importance of reliability
Oct 13, 2026 · View on X

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Jev, read daily so you do not have to. The builds, the benchmarks, the criteria that worked and the cases where it lost, from the people shipping on TypeSafe AI's System One model.