Bittensor subnet ships REAX 1.3, tops HF Decision Index in four weeks

Bittensor's decentralized training ecosystem has delivered again: the "decentralized lab" on Subnet 92 trains decision models through open miner competitions, with the official team integrating the best submissions into REAX 1.3, released under Apache-2.0 for open download on Hugging Face. The model tops the Hugging Face Decision Index 0.4.1 leaderboard with a Full score of 74.0, beating out 274 open replication models; a scale-vs-score scatter plot from Florian Tramèr's team account airesearch12 shows REAX 1.3 (roughly 30B scale) occupying the right end of the Pareto frontier at 70+ points, earning it the nickname "Jev-killer" among those citing it.

Confirmed

REAX 1.3 is open-sourced on Hugging Face under Apache-2.0 (released by constreborn and ReaxLabs)
Ranks #1 on the HF Decision Index 0.4.1 with a Full score of 74.0, among 274 open replication models ranked (ReaxLabs)
Training mechanism: miners on Bittensor Subnet 92 train decision models in open competitions, and the official release integrates the best of them; the subnet has been live for only four weeks (Decision Models)

Why it matters

constreborn's core claim is that decentralized networks solve hard problems faster than companies, and REAX's rapid rise to the top is seen as an empirical case for this thesis
The project demonstrates a "competition mining + integrated release" decentralized training paradigm, producing the top open-source decision model on the leaderboard within four weeks, offering a counterpoint to closed corporate training models

2026-11-06 ~ 2026-11-07 · 6 related posts

Primary sources

Bittensor miners train open-source decision model REAX 1.3 — const_reborn · 2026-11-06 22:59 (UTC+08:00)
Bittensor subnet 92 releases REAX 1.3, an open-source decision model blending miner models — const_reborn · 2026-11-06 22:59 (UTC+08:00)
REAX 1.3 from four-week-old Bittensor subnet claims #1 on Hugging Face Decision Index — airesearch12 · 2026-11-06 22:57 (UTC+08:00)

REAX 1.3 claims #1 on HF Decision Index with 74.0, built via Bittensor subnet in four weeks — airesearch12 · 2026-11-06
[source] Bittensor subnet 92 releases REAX 1.3, an open-source decision model blending miner models — const_reborn · 2026-11-06
[source] Bittensor miners train open-source decision model REAX 1.3 — const_reborn · 2026-11-06
Open-weight REAX 1.3 tops the Pareto frontier with 70+ score — airesearch12 · 2026-11-06

2 near-duplicate retellings: airesearch12 · markjeffrey