Sable Raises $45 Million to Build Aiden, an "AI Employee" That Runs Sales Demos on Its Own
Startup Sable raised $45 million led by Sequoia Capital and 8VC on July 16, 2026, for Aiden, an AI agent that runs full product demos on its own, with Notion and Decagon already as customers.
The round and who backed it
Sable, a startup founded less than a year ago by a team of Harvard graduates led by CEO Nim Ravid, announced a $45 million round on July 16, 2026, led by Sequoia Capital and 8VC, according to reporting from Fortune, CTech and TheNextWeb. Sequoia's Shaun Maguire and 8VC's Joe Lonsdale are joining the company's board. Angel investors include Valor's Antonio Gracias, HubSpot cofounders Brian Halligan and Dharmesh Shah, and Cognition CEO Scott Wu.
What makes Aiden different
Sable's product is Aiden, described by the company as an AI employee capable of running full product demos and answering detailed questions in real time. Unlike a chat widget sitting in a corner of a website, Aiden appears in a shared browser window shaped like a laptop screen and actively drives the product while the buyer watches and clicks alongside it, according to Fortune. The system can independently detect changes on screen and jump into the conversation at the right moment, mirroring how a human sales engineer behaves during a demo.
How the system learns to sell
According to Fortune, Aiden is trained on recordings of each customer's best sales calls, internal documentation and marketing materials, building a reusable knowledge base that supports demos, onboarding and international expansion of the product being sold.
Customers already in production
Aiden is already running in production at fast growing companies such as Notion and Decagon, plus large publicly traded companies that were not publicly named, according to Fortune. For a startup less than a year old, having customers of that size running the product in a live environment is a strong signal of traction, and helps explain why funds like Sequoia are interested in a round of this size.
Why it matters for those selling or automating sales
Aiden attacks directly one of the most expensive and hardest to scale parts of any sales operation: a human led product demo. For agencies and marketing and sales teams that today depend on a limited number of human reps to run demos, Sable's model points to a concrete direction: turning the best sales conversations already recorded into a reusable asset that can run in parallel, across time zones, without depending on one person's calendar. It is worth watching how this kind of product evolves, because it targets exactly the kind of bottleneck that holds back commercial growth at small and medium businesses.