So we’ll have ~20 of the latest AI start-ups from YCombinator at a special YC Demo Pod area at 2025 SaaStr Annual! Come meet them (and also watch 100+ present live at our first AI Demo Stage) at 2025 SaaStr Annual, May 13-15 in SF Bay!!
Here’s more on a dozen of them to meet IRL!:
Abundant AI: API for Agent Teleoperation
Abundant powers reliable and safe AI deployment via our API. Our network of specialized operators works alongside AI agents to:
(1) Handle complex edge cases with precision.
(2) Maintain rigorous safety standards.
(3) Generate high-quality training data that continuously improves AI performance.
Companies can meet stringent quality requirements at a fraction of the cost of in-house teams, while accelerating their AI initiatives.
Agentin: Autonomous Agents for CFOs
What They Do: Agentin AI, a Y Combinator-backed startup that builds reinforcement-learning AI coworkers for the CFO’s office. These agents start with Quote-to-Cash, working across CRM and ERP stacks like Salesforce and NetSuite, reasoning through approvals, reconciliations, and invoices to cut multi-day cycles to minutes.
Atlog: A knowledge repository that intuitively organizes and versions your data packets, drives, and documents in one place
Calltree: Enterprise-grade AI support reps for call centers
Calltree makes enterprise-grade AI support reps for call centers. Our AI reps take voice calls and chats like other AI support agents but can also use internal enterprise tools like a homegrown CRM or internal dashboards, like the highly trained humans working there today.
Leaping AI:The only self-improving voice AI
Leaping AI is the only platform for self-improving voice AI agents.
We automated contact centers employing >100 human agents and now handle their incoming customer support and sales calls, end-to-end. All while maintaining 90% customer satisfaction score.
For another company, our voice AI agents were able to convert 30% of contacted leads within a week of the outbound campaign. A similar campaign with humans previously took that same company 5 weeks.
Mosaic: Create and run your own video editing AI agents
Mosaic is an agentic video editing paradigm. It enables anyone to create and run their own multimodal video editing agents in a node-based canvas. Our mission is to accelerate hours of video editing work to seconds.
Openmart: GTM platform for reaching local businesses
Openmart is the GTM platform for reaching local business owners. Think of us like Apollo/ZoomInfo but for local business/POI data. We help sales professionals query millions of unstructured local business data like local government filings, websites, reviews and socials
Plexe: The Command-Line-Interface for Business Operations
What They Do: Plexe has built an AI-powered CLI that connects to business systems (CRM, ERP, HRIS), allowing operators to manipulate data and trigger workflows through natural language commands.
Why It Matters: Business users waste hours navigating complex SaaS UIs. Plexe’s command line approach allows power users to execute complex operations in seconds rather than minutes.
The Numbers: 22,000+ active users with 860 paying companies. Users perform an average of 127 operations daily through the platform.
My Take: This is not for everyone, but for operations teams managing complex business systems, it’s potentially transformative. The founders’ background at Stripe shows in their developer-friendly approach to business operations.
Promptless AI: An AI teammate that automatically updates your customer-facing docs
Docs are integral to a great customer experience, but managing them is a challenging, multi-team effort. The most successful companies recognize that fantastic docs drive adoption and bad ones cause customers to churn. Promptless is used by fast-growing startups and Fortune 500 enterprises alike to automatically update docs based on feature releases, support tickets, internal Slack conversations, and more.
Promptless is designed to be flexible—it can integrate with any docs platform, be triggered automatically from many workflows, and can pull in context from any internal knowledge source.
With Promptless, documentation becomes a strategic advantage for growth, not a bottleneck or a liability.
Simple AI: AI Phone Agents
Simple AI makes it easy for businesses to build hyper-realistic AI phone agents. Businesses use us for customer support, leads qualification, and more.
Sixty Four AI: Enterprise Vector Search as a Service
What They Do: Sixty Four AI provides a managed vector database service optimized for enterprise semantic search and RAG applications.
Why It Matters: Vector search underpins modern AI applications, but scaling and optimizing vector databases is challenging. Sixty Four AI handles the infrastructure while providing enterprise features like access controls and audit logs.
The Numbers: Processing 1.2B vector queries daily. 230+ enterprise customers including three Fortune 50 companies. 99.999% availability SLA.
My Take: Classic infrastructure play with sticky retention characteristics. Their performance benchmarks showing 10x query throughput compared to self-hosted options were eye-opening. The team comes from MongoDB and Elastic, bringing deep search expertise.
Verbiflow: AI Meeting Assistant That Actually Takes Action
What They Do: Verbiflow listens to meetings, captures action items, and then actively follows up to ensure completion.
Why It Matters: Meeting action items often fall through the cracks. Verbiflow doesn’t just document them – it follows up with participants, updates task management systems, and ensures accountability.
The Numbers: Analyzing 25,000+ meetings monthly. Users report a 64% increase in action item completion rates. NPS of 78.
Our Take: The active follow-up component differentiates Verbiflow from passive meeting assistants. Their integration with workflow tools like Asana, Monday, and ClickUp creates a closed loop that drives real productivity improvements.
The Bottom Line: AI Infrastructure and Vertical Solutions Lead the Way
This year’s YC Demo pods revealed two dominant trends:
- AI Infrastructure Maturation: Companies like Atlog, Mosaic, Openmart, and Sixty Four AI are building the foundational layers needed for enterprise AI adoption.
- Vertical AI Applications: Startups like Leaping AI, Calltree, and Verbiflow are applying AI to specific industry problems rather than offering general-purpose tools.
The days of undifferentiated “AI for X” pitches seem to be behind us. These startups demonstrate deep technical expertise, clear ROI cases, and impressive early traction.
What’s particularly notable is how many are generating meaningful revenue early. The median ARR across these twelve companies is approximately $2.4M, significantly higher than I’ve seen in previous years from companies at similar stages.
In a funding environment that remains selective, these startups show that enterprise buyers are willing to pay for AI solutions that deliver tangible value – a promising sign for the ecosystem.
And apply to demo your AI start-up on the AI Demo Stage here:
