RT @nyn531: I am incredibly excited to announce @Creatify_AI ’s $15.5M Series A co-led by @WndrCoLLC and @KindredVentures. Our journey sta….

RT @GoodfireAI: Scaling interpretability work for frontier AI alignment has never been more important. That’s why we’re launching Ember - t….

RT @Vapi_AI: We've raised $20M from Bessemer, joined by Abstract, AI Grant, Y Combinator, Saga Ventures, and Michael Ovitz. Vapi is the pl….

RT @RowanSci: We're very happy to announce that we've raised $2.1M in pre-seed funding to build machine learning–powered molecular design a….

For those of you who were unable to attend, a thread on all batch 4 companies is available here:

It was a privilege to host so many wonderful founders and investors at @aigrant's demo day this weekend!. Thank you to everyone who attended — we hope to see you again next time!

Supertrace AI is an applied AI research lab building self-driving IT networks:

Juicebox is the AI autopilot for recruiting:

Vapi lets developers build and deploy voice assistants in products and over the phone:

Rowan is an ML-powered molecular simulation platform that lets scientists design and analyze molecules and materials in their browser:

Sync is AI lip-sync for creators, developers and video editors by the original team behind Wav2Lip:

Haize Labs is the trust, safety, and reliability layer underpinning AI models in every industry and use case. By haizing (i.e. stress-testing and red-teaming) to discover and eliminate all failure modes, we enable the risk-free adoption of AI:

Graylark is an AI research company that builds geospatial intelligence software for defense and commercial purposes:

Pursuit automates selling into the public sector:

Artificial Analysis provides independent benchmarks and evaluations of everything AI to help engineers choose the right technologies for their use case. See the latest results at

Hamming AI brings trust to AI voice agents. With one click, users create thousands of adversarial voice agents that call and evaluate their voice agents using different accents, objectives, and personalities. Try it here:

InspectMind AI transforms jobsite photos and voice notes into detailed inspection reports in minutes:

Pulse automates procurement with AI to reduce supply chain risk. Pulse's AI agents eliminate the time wasted on fragmented supply chain data in emails, spreadsheets, and ERPs:

Granola (@meetgranola) is the AI notepad for people in back-to-back meetings:

Silurian is building foundation models for simulating the Earth, starting with weather: