Alex Ren
@AlexFellowsFund
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Founding Partner at Fellows Fund, a Silicon Valley based AI fund
Sunnyvale, CA
Joined October 2014
RT @DrJimFan: Say AI one more time, and we’ll end 2024 for good. It’s been a wild ride. The year went on like a diffusion model - we watch…
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RT @AlexLee611: @AlexFellowsFund @truewindai @CharleyMa @AlexFellowsFund is one of the best in the business for early stage AI investing. H…
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Congratulations to the @truewindai team on successfully closing their Series A funding round! Fellows Fund has been a dedicated supporter of Truewind from the very beginning, believing in their vision and exceptional execution. Kudos to the entire team on this significant milestone! 🎉
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RT @AlexLee611: Fundraising announcement day ⛵️ (which also means many thank you’s to follow) @truewindai has raised $13M in our Series A,…
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Fellows Fund Welcomes Lilian Weng as Distinguished Fellow On behalf of the Fellows Fund( AI Fellow community, I’m excited to announce that @lilianweng , former VP of Research and Safety at @OpenAI, has joined us as our newest Distinguished Fellow! Lilian is one of the foremost leaders of the Generative AI era. During her remarkable seven-year tenure at OpenAI, she played a pivotal role in the development of early GPT models, pioneering safety systems, and other groundbreaking product innovations. Her contributions spanned robotics, applied AI research, and building robust AI safety frameworks—paving the way for more responsible AI development. Lilian has been an inspiration to countless AI researchers, exemplifying how to create transformative impact while prioritizing safety in AI advancements. Here are some of her insightful articles showcasing her expertise and deep reflections on AI agents, reinforcement learning (RL), and more: Reward Hacking in Reinforcement Learning: LLM Powered Autonomous Agents: More on Lilian’s blog: With Lilian’s addition to our Fellow community, Fellows Fund( is further solidified as the premier early-stage AI investment firm for the world’s top AI founders. We’re here to help you bring your bold ideas to life and be the best partner for your entrepreneurial journey. For more information about Lilian’s incredible achievements, check out the PR with her full bio here： Got an idea? Let’s talk! pitch@fellows.fund
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RT @RemiCadene: I will be at the K-Scale hackathon on December 14th in Silicon Valley! Thanks @benjamin_bolte for hosting 😇
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RT @lilianweng: 🦃 At the end of Thanksgiving holidays, I finally finished the piece on reward hacking. Not an easy one to write, phew. Rew…
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RT @SebastianThrun: The AI hype is now finally and officially over. Let numbers (like: growth, revenue, margins, EBITDA) reign once again.
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RT @JasonMa2020: I recently gave a talk at MIT's Embodied Intelligence seminar, covering some of my recent works and perspectives on "Found…
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RT @sainingxie: Nothing ever happens… until it does! Just saw JanusFlow by @deepseek_ai uses REPA for training and shows some solid impro…
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