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K2 Horizon
● liveLive — fully open fleet (weights, code and training data) at 375B-A23B; 36B-A4B; 32B; 7B; 3.7B; 0.9B; the launch date is from IFM's own Sep 3 announcement, not our own reading; our sweep read the 7B at $0.05/$0.20 per 1M served at 131k ctx, against a 524k native window IFM claims. On the board as live since 2026-09-03 — the watchers keep tracking it: lineup changes, pricing moves and deprecations all alert.
No reading from our side yet· checked Live model status →
Watch for the next frontier model, free →Launch report (PDF)
Timeline
K2 Horizon: quick answers
Is K2 Horizon out?
Yes. K2 Horizon is live and has been since September 3, 2026.
When was K2 Horizon released?
September 3, 2026.
Who makes K2 Horizon?
IFM.
Is K2 Horizon open weights?
Yes. K2 Horizon is released with open weights.
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