Sierra built Agency, a secure and scalable sandbox infrastructure for AI agents, after finding that off-the-shelf sandbox providers imposed hard limits on resources, runtime, and concurrency that woul…
Akshay Iyer launched Polymath, a product that analyzes what AI tools like Claude and ChatGPT know about a user to secure real-world opportunities such as intros and job referrals. Iyer pivoted through…
Sierra announced on July 23 that it is acquiring AI agent startup Takeoff and that the combined teams are building a platform called Horizon for long-horizon, outcome-driven enterprise agents. Financi…
Sierra is acquiring Takeoff, an AI agent runtime startup that grew from $0 to nearly 8 figures in annual recurring revenue within 14 months. The combined company will build a new platform called Horiz…
Sierra is acquiring TakeOff, the leader in long-horizon AI agents, according to a July 23rd, 2026 post on X by former Salesforce CTO Bret Taylor. The deal brings in TakeOff founder Aakash Thumaty and …
Sierra built a single MCP Gateway to connect AI agents to internal tools like Slack, GitHub, and Salesforce, reducing coordination overhead and avoiding duplicate integrations. The engineering team ad…
Sarah Guo, who became Greylock's youngest general partner at 28 and left four years later to found Conviction, staked her firm entirely on AI before ChatGPT launched, with pre-ChatGPT seed checks into…
OpenAI chairman Bret Taylor predicted on CNBC that within a year, companies will stop worrying about AI tokens as the market matures and other firms bear the burden of managing them. Taylor said the w…
Companies including Anthropic, Ramp, Notion, and Stripe are rewriting product manager hiring processes to focus on live AI direction and error detection rather than polished deliverables, according to…
Sierra announced Horizon, a platform that enables AI agents to pursue long-horizon goals such as originating loans or scheduling healthcare referrals over days or weeks. The platform, built on Sierra'…
A friend of the author failed a senior AI engineer interview at an unnamed company after being asked what happens when a retriever returns a document contradicting the user's intent, a question that n…
Sierra has built Pinecone, an internal cloud-based agent that captures and scales employee workflows across the company, turning individual improvements into organizational knowledge. The system provi…
Sierra announced a partnership with SoftBank Corp., a Japan-based telecommunications and IT operator, to deliver its conversational AI platform to Japanese enterprises. SoftBank will serve as Sierra's…
AI companies now account for nearly half of all office space that U.S. tech firms are seeking, according to a VTS report. Demand is concentrated in San Francisco, Silicon Valley, and New York, with Sa…
Sierra's AI acceleration team collapsed role-specific agents into a single agent called Pinecone, finding that a unified agent handling end-to-end jobs outperformed per-role agents. The company learne…
Multiple AI startups, including Mercor, Anthropic, Sierra, Glean, and Gusto, are reporting accelerating revenue growth, reaching billion-dollar milestones in increasingly shorter timeframes. The compa…
Sierra hosted a Ghostwriter Hackathon last week with 30 people from 17 companies, more than half with over $10B in annual revenue, where attendees built working AI agents in hours. One attendee from a…
Natalie Meurer, Head of Agent Engineering at Sierra, argues that forward deployed engineering is defined more by customer accountability than by a specific skill set, and that product and customer-fac…
Vertical AI startups like Harvey ($11B) and Abridge have proven that wrapping a foundation model with proprietary data and domain workflow logic creates billion-dollar companies. Agriculture is the ne…
The best AI agents, including Gemini 2.5 Pro, complete only about 30% of realistic multi-step office tasks autonomously, according to Carnegie Mellon's TheAgentCompany benchmark. Salesforce's own CRMA…