Perplexity CTO's AutoJev-27B Takes Open-Source Lead on Decision Index, Trained for Just $3k
antoine_chaffin · x · 2026-09-24
The Decision Index leaderboard updated to 0.2: improved formula, +29 Jev-like models, +21 benchmarks.
- AutoJev-27B, trained by Perplexity CTO Denis Yarats, took the open-source lead, trailing Jev by just 0.8 points
- Yarats revealed the training cost only $3,000, with more iterations running to hopefully surpass the top model
The index helps users find the best decision model at every size, speed, and use case. Near-SOTA at $3k is a striking signal for small-budget training.
Related event: Decision Index 0.2 released; Perplexity CTO's model tops open ranking(2 posts)→
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