Ackman and Schmidt back secretive Israeli AI startup Two Delta in seed round
What's the deal? Israeli AI startup Two DeltaDealroom has a profile for this one. Try Dealroom → has raised tens of millions of dollars in a seed round backed by Bill AckmanDealroom has a profile for this one. Try Dealroom →, founder and chief executive officer of Pershing SquareDealroom has a profile for this one. Try Dealroom →, and former Google chairman Eric SchmidtDealroom has a profile for this one. Try Dealroom →, Calcalist has learned.
Who's behind it? Founded in 2025, Two Delta operates with a high degree of secrecy and has disclosed little beyond research papers on its website. It was co-founded by Dvir Zeltzer, who held a senior role at Google, and Dr. Eli David, a veteran AI researcher.
What's the endgame? The company is building technology to accelerate AI models and make them use computing resources more efficiently. Its research also examines why AI coding agents struggle to keep applications working as users add features.
Why now? In October 2026, Two Delta published results from a collaboration with Nvidia, using its DCOCO technology to speed up inference for Nvidia's Nemotron 3.5 Super VL model.
The method builds on speculative decoding, where a smaller model drafts tokens that a larger model verifies in a single pass. Two Delta reported DCOCO achieved average throughput 2.03 times that of standard decoding in tests across 10 datasets, and a 19.8% improvement over the competing DFlash method.
One caveat: These are results reported by Two Delta, not an independent assessment. The evaluations ran on Nvidia DGX B200 hardware using the vLLM framework.
The company has also published EvoWeb, a benchmark testing how AI coding agents build and maintain web apps over 10 successive feature requests. None of the 32 applications tested kept full functionality throughout; runtime errors rose from 2% to 12% after 10 requests.
The signal: The backing of two high-profile US investors in a secretive, year-old Israeli startup underscores how far capital will travel to reach frontier work on AI efficiency — a bottleneck as models grow larger and costlier to run.
Read more: calcalistech.com
Image credit: Generated with Gemini
