A new 3D memory architecture for memory-hungry AI.


Moore's Law has guided chip evolution for 60 years, so a fundamental technology leap is very unusual. Kepler may well break that trend with a new 3D memory architecture that has 10x more bandwidth than HBM and may deliver ~100x better power efficiency for memory-hungry AI tasks. The paradigm could also extend beyond memory.

Stage:

Silicon to Volume.

Vision:

Achieve multiple orders of magnitude more intelligence per watt by evolving chips from 2D Silicon to 3D beyond silicon.

Zulu Role


  • 2020: Invested in Series A


  • 2025: Series D, $1.7B valuation

Collaborators


  • Gates Frontier: Bill Gates's venture firm, backing breakthrough energy and computing.


  • Intel Capital: Intel's investment arm. Kepler's founders built Foveros 3D stacking and FinFET-era breakthroughs at Intel.


  • Neo: Early-stage fund behind Ramp and Vanta.


  • Baillie Gifford: Long-term investor in Tesla, Amazon and Spotify.


  • AMD Ventures, GlobalFoundries, Temasek, or Pat Gelsinger (former Intel CEO)

End Game / Ambition

Significantly reduce the ravenous energy needs of the AI revolution.

Computing technology designed to harness the power of multiple nodes to
augment computational power