Jex 1.0, Part 5: Ship It
The production run, the bit-exact verification, and the open-source release of the engine that became **Jex 1.0**, shipped under the name **Bixoto**.
The production run, the bit-exact verification, and the open-source release of the engine that became **Jex 1.0**, shipped under the name **Bixoto**.
The reasoning gate closes by its own receipts, the board moves to edition 0.3, and the frozen stack is rebased and pushed lever by lever to 60.29: the best of all no-training entries, and the measured ceiling.
The one speedup the audit allowed, and the parity work that paid for it: Route B, batch invariance, and the 55-minute dry run that turned a projection into a schedule.
A gate curve that promised +20 index, a latency wall at 40% coverage, and a pilot built to catch us fooling ourselves: the reasoning hypothesis, measured under a ten-euro cap.
A frozen 31-billion-parameter model, a leaderboard read wrong, an engine that had never touched a GPU, and a reproducibility audit that turns every speed shortcut into a liability: the first phase of the campaign, from a broken engine to a banked 58.09.
Zhipu’s post-training special vs Moonshot’s trillion-parameter giant — the first real head-to-head of China’s two open-weight flagships, with receipts and asterisks. GLM-5.3 launched on August 14, 2026, the day I’m writing this. Its numbers are vendor-reported (v) and hours old. Kimi K3’s numbers are a mix of vendor-reported (v) and independently verified (i) figures, after … Read more
While researching the subject, I couldn’t find a proper comparison of the three top models. The data for each one is available independently, but no overview is. I asked an LLM to write me a report on the situation, and I thought it would be helpful for others if I posted it here: The frontier … Read more