Moonshot Ships Kimi K3-256k, a Half-Quota Variant of the 1M-Context Flagship, Two Weeks After K3's Launch
Moonshot AI Kimi Code docs (surfaced via Hacker News, 457 points / 131 comments)·medium signal
Moonshot's model docs page hit 457 points and 131 comments on Hacker News on July 29 for a new K3 variant capped at 256k context that the company says delivers the same results within that window while consuming roughly half the quota of the 1M K3. It is positioned for everyday Q&A, code completion, routine feature work and single-file edits, supports image but not video input, and offers low/high/max reasoning effort with high as default. This lands after the 2.8T-parameter K3 launched July 16 and open weights dropped July 26 — the interesting signal is a frontier lab explicitly selling a context downgrade as the cost-control lever.