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Reasoning Models, as it ships.
Engineering notes on Reasoning Models by Samir Sengupta - each one read from primary sources on the day it happened, with what it changes for people building on it.
Fireworks' Ember-1: Kimi K3 with 35-50% shorter reasoning, no weights or price
Ember-1, Fireworks' post-trained Kimi K3, reports K3-level scores with about 40% fewer tokens. Two-week serverless preview, no weights, licence or price.
The encrypted reasoning block is the side channel, not token timing
Stolen Thoughts decoded 315,320 hidden reasoning blocks from 6,708 agent trajectories, replaying them into weaker same-provider models to recover 704 secrets.
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