Bird secures $450M and opens its infrastructure to AI agents. Debt financing led by J.P. Morgan. Still private and independent. Meet Agentic Harness: agents can email, use WhatsApp, make calls—even get their own eSIM. What would you build with it?

Abridge is expanding with pre-bill, a new capability for CDI revenue cycle teams. Read the full story from @FierceHealth fiercehealthcare.com/ai-and-…

everyone tells new grads "learn AI." nobody tells them how. so we built AI Skills Studio with @clay, @figma, @GammaApp, @Google, @Lovable, @NotionHQ, @OpenAI, @Replit, @Salesforce, and @vercel. free hands on projects, on the same app where 1M+ employers are hiring.

Introducing Claude Opus 5.5, the first model in our new Claude 5.5 family. It performs at the level of Claude Fable 5.1 for most tasks, and costs 40% less to run than Opus 5.

My first time caring for Veterans was at the VAMC in Ann Arbor. What began there became a weekly VA clinic for nearly eight years, first in Ann Arbor and later in Pittsburgh. What always stayed with me was how much Veterans had given in service and how little they asked for in return. At @AbridgeHQ, we’ve had the opportunity to improve the care delivery experience for many more Veterans than I could have ever seen as a doctor in a clinic. We’ve supported VA clinicians with cutting edge tools that help them spend less time staring at a computer screen and more time focusing on the Veteran in front of them. We started with a pilot deployment at 5 VA medical centers, which has since grown to more than 75 sites across the country. Now, Abridge has been selected to bring our clinician intelligence platform to Veteran care nationwide through the VA enterprise contract for ambient AI. As the VA undertakes one of the largest electronic medical record transitions in history, its clinicians remain committed to delivering exceptional care to Veterans. They deserve tools that ease documentation demands, create more space for connection during each encounter, and help preserve important details across visits and care teams. Abridge meets VA clinicians where they are, by being fully operational on both VistA/CPRS and the Federal EHR. This is the level of care that Veterans deserve and the VA's mission demands. It is our privilege to serve the needs of those who have served and the clinicians who care for them. abridge.com/press-release/va…

I’m thrilled to share that @CrusoeAI has raised $3.9b in our Series F valuing the company at $30.9b and providing the growth capital necessary to accelerate the abundance of energy and intelligence. 8 years in and what a journey it’s been with @Electron_Cowboy. The company is firing on all cylinders right now and our growth opportunities have never been bigger. To everyone who’s been a part of it along the way, thank you! We’re just getting started!! 🚀🚀🚀

stoked to finally ship what we’ve been building over the last few months we believe more of the agent loop will move closer to inference. for many workloads, that means fewer round trips, lower latency and a much simpler developer experience it’s been incredible working with our web search partners, who make a deeply technical stack feel magical with inference, sandboxes, and now hosted tools, we’re building towards baseten being the easiest place to ship fast, production-ready agents. try it out!

Proud to partner with @baseten and @baselabs to build safety infrastructure for open-source models—which are essential to lots of safety research, including our own. Safety must be built into open models and provided by those who serve them, and we’re excited to help enable that!

Open models are expanding what's possible. But the frontier only matters if companies can run it safely in production. We're building safety infrastructure for open models — turning safety research into transparent, actionable controls built into how models are trained and deployed. Proud to partner with @huggingface and @GoodfireAI, and excited to invite the open-source community to contribute. The future is a broad ecosystem of open models that companies can build on safely, and that are accessible to all.

We believe openness to be an advantage for AI safety. Openness provides more visibility into the behavior of models and, most importantly, greater means of turning safety research into actionable and transparent controls than closed-source. This is why Baseten and Base Labs are building a stronger safety and security standard for open models, with the launch of our safety infrastructure. Base Labs will develop and publish methods for training and monitoring open models, and Baseten will integrate that work into its deployment infrastructure, live at runtime, and offer this work as a managed service. This will be a standard that is transparent and built into how our models are trained and deployed. We invite the open-source community to contribute, and are proud to partner with @huggingface and @GoodfireAI to bring this vision to fruition. Together, we are building an ecosystem of open models that are safe and accessible to all.

Mercury goes from strength to strength. Your books can’t be out of date if your bank = your books!

1/ Today, we're launching @Mercury Books. AI-powered accounting software, for your bookkeeper or you, that categorizes and reconciles your transactions the moment they happen.

SEPT ’26: HUMANS STILL VERY MUCH HAVE JOBS. AI isn't even close to meeting the standard required of the most junior professionals in banking, advisory, and private equity today. ATLAS Finance agents must navigate complexity like a human does: "Johnny you just got staffed - check your email." Human: 100%. Best AI: 12%. Agents have access to data rooms, email, chat, calendars, docs, notes, Excel, etc. Our real finance professionals pushed the realism frontier further by building dozens of coworker and client personas that introduce ambiguity, (controlled) contradictions, and real-time updates that must be adjudicated to successfully complete the client-ready deliverable. We gave 11 frontier models 100 expert-level tasks that each take humans 15–30 hours. On Wall Street there's a saying, "If it's 95% right, it's 100% wrong." Autonomous knowledge work outside software still has a very long way to go.

Prior notes, labs, vitals: The chart holds the data, but a clinician rarely has time to dig for it mid-shift. Dr. Carl Rhodes and @c_asawa on what changes when that context is built directly into Abridge clinical intelligence—reasoned through in the moment, grounded in the record, cited every time. Catch a live demo at Becker's this week—booth 2001.

Most pre-bill tools start from the completed chart and work backward, often prompting questions that are returned to clinicians for resolution.

How is AI inference evolving? @amiruci, Co-Founder and CTO of Baseten, explains: "Inference went from being, 'Hey, I'm going to ask my model a question. It's going to give me the answer, and I'm going to run with it’ to..." "... ‘I'm going to ask the model to do something that requires multiple steps and multiple reasoning steps.’"

TAR is an exceptional team building something enormously important. very excited to keep backing them.

Ep #277 is live! Abridge's CEO, Shiv Rao went from skateboarding and selling records in Japan → cardiology → nearly four years “languishing” as a founder before Abridge took off. Today, Abridge is used across 300+ health systems and 100M+ clinical conversations annually. We unpack: • Nearly quitting medicine • Why his “dream job” left him restless • The personal story behind Abridge • Years searching for product-market fit • When generative AI made “the sky just open up” • Going all-in with their “backs against the wall” • Why “pressure makes diamonds” • Building when “every minute matters” • Lessons from Jensen Huang & Rick Rubin Listen here: curiositycentre.com/the-high… Shiv's re-imagined high flyer: @morgancheatham Thx for the research help: Sebastian, Somesh, David, Zen, Holly, Morgan @khoslaventures @vkhosla @a16z @sparkcapital

1/ The FDIC just approved @Mercury Bank, N.A.'s application for deposit insurance. One step closer to opening Mercury Bank!. There is still work between here and opening Mercury Bank’s virtual doors, which should happen in 2027. I started Mercury in 2017 because I wanted to build the bank I wished had existed when I was running my previous companies. Going from a fintech with bank partners to a tech company with an actual bank has been the vision from the beginning.

We’re hiring across 40+ roles in the San Francisco Bay Area and Austin. Join us now: tar.com/careers