Sequoia backs AI sales rep Aiden with $45M for Sable

Sable, a startup founded less than a year ago by Israeli entrepreneur Nim Ravid, has raised $45 million（約72億円） in a round led by Sequoia Capital and 8VC, with participation from Valor CEO Antonio Gracias, HubSpot cofounders Brian Halligan and Dharmesh Shah, and Cognition CEO Scott Wu as angels. The funding will support Aiden, an AI agent designed to function as a virtual sales and customer-success employee living directly on a company's website.

Ravid's approach to building Aiden reflects a deliberate focus on human experience. Rather than deploying a traditional chatbot confined to a corner chat bubble, Aiden operates in a shared online window that resembles a laptop screen. During a product demo, Aiden can autonomously observe changes on the page and inject itself into the conversation naturally—more like a skilled human sales engineer than a script-bound automation. The breakthrough moment for Sequoia partner Shaun Maguire came when he watched an Aiden demo in which the AI sales representative walked a buyer through a product in English, then seamlessly switched into Mandarin and Spanish mid-conversation. Maguire compared the experience to "what Stripe did for payments," signaling to Sequoia that Sable might be building foundational infrastructure for a new category.

Sable trains Aiden by feeding it recordings of a customer's best sales calls, internal documentation, and marketing materials, building a reusable "brain" that can power multiple use cases—demos, onboarding, and international rollouts—without starting from scratch each time. Notion (a workspace platform) and Decagon (an AI customer-service startup) are already running Aiden in production, validating the approach at a commercial stage.

The market opportunity is substantial. Agentic AI—software that takes autonomous actions on a computer rather than merely responding—has grown into a roughly $9 to $10 billion（約1.6兆円） global market in 2026, with forecasts reaching as high as $57 billion（約9.1兆円） by 2031. Sable positions Aiden as capable of absorbing four human roles simultaneously: sales development, demo specialist, solutions engineer, and customer-success onboarding. Ravid frames this as a "win-win" in which buyers gain access to patient, expert guidance on demand while humans transition to managing fleets of AI teammates instead of repeating the same explainer calls. However, real obstacles remain: buyer trust is fragile given years of "shitty chatbot experiences," job displacement concerns loom, and established competitors like Notion—which has built AI agents into its own platform—can leverage existing user relationships and infrastructure to compete directly.

Sable's $45 million（約72億円） raise illustrates a shift in how venture investors view AI's near-term business impact. Rather than betting purely on foundational models or consumer apps, Sequoia and other backers are backing specialized AI agents designed to replace specific human workflows—in this case, sales and customer onboarding. The demo that convinced Sequoia partner Shaun Maguire hinged on a seemingly simple technical achievement: smooth language switching mid-conversation. That moment echoes how Stripe transformed payments infrastructure; the parallel suggests investors see Aiden not as a novelty but as foundational software for the customer-engagement layer.

The broader market context underscores why the timing matters. Agentic AI (software that autonomously takes actions on a computer rather than merely responding to queries) has grown into a roughly $9 to $10 billion（約1.6兆円） global market in 2026, with analyst forecasts reaching $57 billion（約9.1兆円） by 2031. Competitors are already moving: Notion has transformed its workspace into an AI agent hub, and Decagon is deploying AI concierges for customer service. Sequoia partner Julien Bek has publicly argued that "services are the new software" and that the next trillion-dollar company will sell results, not tools—a framing that directly supports Sable's pitch.

Yet Sable faces material obstacles. Buyer skepticism toward AI is real: Ravid acknowledges that many companies remain "scarred by years of 'shitty chatbot experiences.'" Trust and job displacement are genuine concerns, as is competition from entrenched players like Notion, which can leverage its own AI capabilities and user base. Sable's bet is that Aiden's design—autonomous, multi-lingual, operating in a shared window rather than a corner chat bubble—will feel sufficiently different and more competent that enterprises will adopt it at scale.

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