Joined October 2019
13 Photos and videos
solbier retweeted
Congratulations @goodwin_ml and team @fractile_ai! This $220m raise is proof of exceptional British AI bringing investment and jobs to the UK. Britain has a deep heritage in semiconductors - and we are now renewing it for the age of AI inference 🇬🇧 wsj.com/tech/ai/chips-startu

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We’re thrilled to be backing @fractile_ai , solving inference at the edge of what’s possible. The current AI trend around infra and memory is deeply personal to me. A decade ago, I was part of a small team at Cruise pushing silicon to its limit. We were running perception and planning models on NVIDIA Titan with only 6GB of RAM & 2k CUDA cores. The chips were on-device, power-constrained, thermally limited. The car's air conditioning wasn't designed to dissipate that much heat so we had to engineer custom cooling. Everything was duct tape and ingenuity. It gave me a deep appreciation for doing more with less, and for founders like @goodwin_ml at Fractile who operate the same way. If you're the type who stares at the limits of physics and sees a challenge - reach out !
Exclusive: The U.K. chip startup Fractile said it has raised a $220 million Series B funding round led by Factorial Funds, Accel and Peter Thiel’s Founders Fund on.wsj.com/4nseSGS
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solbier retweeted
That change you’re feeling? Like the old way of pricing and modeling entire industries is being turned on its head? It’s been slowly compounding for a while now. When you look at the IGV/SMH ratio (tracking the relative performance of software against semiconductors) you see that this rotation out of software into chips isn’t new. It’s just accelerating.
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Incredible work @karinanguyen . We can't manage what we can't measure - PostTrainBench is a huge win for the frontier !
Excited to release PostTrainBench v1.0! This benchmark evaluates the ability of frontier AI agents to post-train language models in a simplified setting. We believe this is a first step toward tracking progress in recursive self-improvement đŸ§”:
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Ethan (from Khosla, the true believers in AI before any VC would even take a meeting) posting some incredible insights: "Hyperscalers which were able to build out incrementally as internet penetration and cloud adoption grew ! " This AI capex cycle is happening much faster.
For anyone who finally want VCs called out on their BS, can I get enough likes and retweets on this for folks who would like @mmurph @deedydas @MenloVentures to be transparent and share the underlying N, firmographic data, and methodology that underpins this study?
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solbier retweeted
31 Jul 2025
Need this printed out :)
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9 Jul 2025
Congrats @AravSrinivas & the entire @perplexity_ai team on the Comet launch. This level of context with LLMs feels the iPhone moment for AI all over again 🚀
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7 Jul 2025
Congrats on the launch @nicochristie & team. Time to get your team more GPUs đŸ«Ą
2 Jul 2025
Introducing Shortcut — the first superhuman Excel agent. Shortcut one-shots most knowledge work tasks on Excel. It even scores >80% on Excel World Championship Cases in ~10 minutes. That's 10x faster than humans. Our early preview is live. Just comment for an invite code.
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7 May 2025
👀
7 May 2025
*ALPHABET SINKS 5% AS APPLE EXPLORES AI SEARCH IN ITS BROWSER *APPLE'S CUE: SEARCHES IN BROWSER FELL FOR FIRST TIME IN APRIL *APPLE'S CUE: BELIEVES PERPLEXITY, ANTHROPIC COULD BE OPTIONS
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14 Feb 2025
When your own portfolio company turns the VC industry into a commodity. How the tables have turned. Great job @perplexity_ai team !
Deep Research is now a commodity thanks to Perplexity
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solbier retweeted
14 Jan 2025
We're excited to introduce Tasks! For the first time, ChatGPT can manage tasks asynchronously on your behalf—whether it's a one-time request or an ongoing routine. Here are my favorite use cases: 1/ ChatGPT checks stock price every morning!
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30 Oct 2024
New evals are badly needed for next gen LLMs !
30 Oct 2024
New paper! SimpleQA is newly open-sourced factuality benchmark that contains 4,326 short, fact-seeking questions that are challenging for frontier models. Designing good evals is hard. But we used the following criteria: - High correctness via robust data quality verification / human agreement rates. - Good researcher UX. Easy to grade, easy to run. - Challenging for frontier models. GPT-4o and Claude both score less than 50% - Diversity. SimpleQA contains questions from a wide range of topics, including history, science & technology, art, geography, TV shows, etc.
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26 Oct 2024
Thanks for having us @RagingVentures , all the panels at the event were great !
Excited to share excerpts from my chat with Sol Bier at our recent NYC Conference. Sol was an early engineer at Cruise & is the founding partner of Factorial Funds, an AI-focused VC fund. The full interview is available here: ragingcapitalventures.com/ai
 A few highlights: 1/4
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solbier retweeted
Excited to share excerpts from my chat with Sol Bier at our recent NYC Conference. Sol was an early engineer at Cruise & is the founding partner of Factorial Funds, an AI-focused VC fund. The full interview is available here: ragingcapitalventures.com/ai
 A few highlights: 1/4

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solbier retweeted
I can’t wait to discuss the latest and greatest in AI and venture with Factorial Fund’s Sol Bier @solbier1 at our upcoming Ideas & Networking Conference in NYC on Thurs Sept 19th.  Sol was an early founding engineer at Cruise as well as an early investor in Perplexity and Anthropic. He is also an investor in SpaceX.  Click here for a full list of speakers and to register: ragingcapitalventures.regfox


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solbier retweeted
Continually Ascending
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15 Aug 2024
đŸ’Ș
15 Aug 2024
đŸ€© We had a great time joining forces with @factorialfunds to bring together a stellar group of our portfolio founders for ‘Founder Day’ at @AnthropicAI. Founders were treated to an inside look at Anthropic’s product roadmap, best practices for builders using the company’s API and other #AI products—and even a Boba tea bar! 🧋 đŸ™ŒđŸŒ Thanks to the Factorial and Anthropic teams for being awesome partners! #AI #GenAI #founders #startups
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15 Aug 2024
Huge thank you to @joandthezhus @jneuwirth4 & the entire Anthropic startup team
Replying to @factorialfunds
@factorialfunds and @NEA co-hosted an incredible Founder Day at @AnthropicAI, where portfolio companies joined to hear from co-founder @DanielaAmodei and CPO @mikeyk. @AnthropicAI presented some incredible insights into their product roadmap.
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solbier retweeted
7 Aug 2024
Founders have been busy cooking this summer in SF Thank you @AnthropicAI for bringing our founders along with your exciting roadmap and mastering PMF with your boba bar :) @DanielaAmodei @mikeyk @joandthezhus @solbier1 @factorialfunds @jamesekaplan @NEA @btp4z7 @james_elicit @shravan2x @tiimparis @angli_ai
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