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Ai2 releases HiRO-ACEv2 low-cost climate simulation system

What happened

AI digest

On 15 October 2026, Ai2 released HiRO-ACEv2, a new version of its HiRO-ACE system, on the Hugging Face Blog. According to the report, its downscaling model HiROv2 can predict multiple high-resolution meteorological fields at once and improves the reproduction of extreme rainfall, wind speed and pressure events, generating 3-kilometre global climate data at about 1/300 of the cost. So far this event has only this single first-hand report, with no supplementary or contradictory information from other sources.

Written by AI from the reports · updated 2 d ago

Timeline

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Oct 15
  1. Hugging Face BlogSelected
    HiRO-ACEv2: Simulating extreme weather at 3 km resolution for a fraction of the cost

    🤗 Models | 📄 Paper | 📓 Tutorial notebooks | 🌎 Demo We introduce HiRO-ACEv2, the newest update to our High Resolution Output Ai2 Climate Emulator (HiRO-ACE) system.

Heat of this event

Current heat 3·Peak in the comparable range 9(Oct 15 03:00)·Change over 24 hours in the comparable range -49%

02.557.510Oct 1503:00Oct 1515:00Oct 1602:00Oct 1614:00

The trend compares only the same accounts observed without a break, so its range can be narrower than the current heat count. Move the pointer or tap the chart to see each hour; with a keyboard, use the left and right arrow keys.