Comparison
Accelsius vs LiquidStack
Accelsius vs LiquidStack: Two-phase direct-to-chip liquid cooling for AI racks, claimed to cut annual OpEx by 35% against single-phase. Liquid cooling…
Data Center Sustainability · both listings verified
| Field | Accelsius Two-phase direct-to-chip liquid cooling for AI racks, claimed to cut annual OpEx by 35% against single-phase. | LiquidStack Liquid cooling hardware for AI data centres: coolant distribution units and immersion systems from single racks to gigawatt builds. |
|---|---|---|
| Pricing model | Custom quote | Custom quote |
| Pricing published | Pricing on request | Pricing on request |
| Starting price | ||
| Licensing | Proprietary | Proprietary |
| Pricing details | No published price list; systems are quoted per deployment through the vendor or an installation partner. | No published price list; CDUs and immersion systems are quoted per deployment through sales or a partner. |
| Free tier | No | No |
| Assets covered | ||
| Platforms | On-premise | On-premise |
| Region support | US | US, APAC |
| Compliance | Not stated | Not stated |
| API available | No | No |
| Last verified | 2026-10-27 | 2026-10-27 |
Editor's take on Accelsius
The pitch is a chip-level retrofit rather than a new building: two-phase direct-to-chip removes heat at the source, which is the only way to keep adding density where air handling is already at its limit. The quoted figures, 4,500 watts per socket and 35% lower annual OpEx than single-phase, are vendor claims from a technology comparison, so ask for the modelling assumptions and a pilot before budgeting on them. A non-conductive refrigerant and closed loop reduce the water question inside the rack, but facility-side heat rejection still has to be planned. Fits an operator with AI density arriving sooner than a cooling plant upgrade.
Read the Accelsius listingEditor's take on LiquidStack
A component supplier rather than a platform: the decision is which coolant distribution unit fits the racks and the facility water loop, and the vendor's architecture comparison page is the practical starting document. The spread from a single rack to gigawatt infrastructure means the same catalogue covers a pilot and a campus, which helps a buyer who needs to prove the design at small scale. Liquid cooling shifts the constraint from air handling to facility water and heat rejection, so the civil and plant side has to be scoped in the same budget. Prices are project quotes, so compare on delivered capacity and service terms.
Read the LiquidStack listingJudgement is written by the editor. Paid placements never change the ranking or the recorded field values.
All comparisons