New to this? Read it in simple words
- doubleAI, an Israeli startup, launched Maxwell, a tool that speeds up programs while they run.
- It says data pipelines ran more than 38 times faster. Nobody outside has checked this.
- Only some companies can try it for now. There is no public price.
- doubleAI announced a $200 million round, with Nvidia among the investors.
- Machine code
- The low-level instructions that a computer chip actually carries out.
- Series A
- An early round of investment in a startup, often the first big one.
- Early access
- When only selected customers may use a product before it is open to everyone.
doubleAI was founded in 2023, The Register reports, and is based in the Tel Aviv area. Its chief executive, Amnon Shashua, co-founded Mobileye, which makes chips for driver-assistance systems, and is its outgoing chief executive. doubleAI presented Maxwell on Monday, October 19.
What Maxwell does
Most tools that speed up software change the source code that people write. Maxwell works on the program while it runs, doubleAI says. It looks at the hardware and the data, and rewrites the machine code for CPUs and GPUs.
The Register compares this to a just-in-time compiler, but notes that Maxwell can swap whole methods for faster ones. The work runs on doubleAI’s own servers, so customers have to trust the company with their code, The Register writes.
doubleAI says it checks every change with a formal proof that the program still does the same thing. Outlets report this as the company’s claim.
doubleAI’s own figures for Maxwell. No outside group has checked them.
The speed-ups are doubleAI’s figures
doubleAI says Maxwell made data pipelines more than 38 times faster and AI calculations on chips more than 4.5 times faster. “These figures have not been independently verified,” CTech wrote.
In one example, doubleAI and the video company LTX say a 4K video model ran in about half the time. LTX works with doubleAI, so it is not an outside tester.
Maxwell is in “controlled availability”: companies can ask for early access through a form. There is no public price. doubleAI plans to charge a share of the computing costs that customers save, CTech and TNW report.
The money behind it
doubleAI announced a $200 million Series A round led by Lightspeed and Bessemer. Nvidia and Dell Technologies Capital, Dell’s investment arm, also took part.
The round is not new. Globes first reported it in November 2025. The Wall Street Journal says doubleAI has raised about $220 million in total, TNW reports.
Calcalist and Globes put the company’s value at about $1 billion. doubleAI has not published a value itself.
Sources
Every fact in this story comes from the sources below. Open them to check our work.
- 1
- 2
- 3
- 4Research · October 19, 2026Shashua’s doubleAI unveils AI models that optimize how software runs CTech (Calcalist)
- 5
- 6Research · October 19, 2026Amnon Shashua’s doubleAI launches an AI that speeds up code while it runs The Next Web
- 7Research · October 19, 2026Nvidia, Dell back $200M round for AI model developer doubleAI SiliconANGLE
All speed-ups and the formal-proof promise are doubleAI’s claims, and no outside group has tested Maxwell. The company’s value comes from two Israeli outlets, not from doubleAI.
doubleAI launched Maxwell to make code run faster on existing chips, but its big speed-ups are untested claims. How we rate the mood