
fraser
314 posts

fraser
@Fraser
vc at @sparkcapital past: head of product at @openai; co-founder/ceo of an AI startup that was acquired by Airbnb


Starting today, personal superintelligence is just one tap away. No download, no signup. Text Poke for free now: Poke.com 🌴 — 0:00 – What's Poke? 0:50 – Introducing Poke Recipes 1:25 – Create a Recipe in 10 seconds 1:43 – Earn on Poke 2:44 – Build with npx poke 12:58 – Recap 13:36 – Parisian Love




Starting today, personal superintelligence is just one tap away. No download, no signup. Text Poke for free now: Poke.com 🌴 — 0:00 – What's Poke? 0:50 – Introducing Poke Recipes 1:25 – Create a Recipe in 10 seconds 1:43 – Earn on Poke 2:44 – Build with npx poke 12:58 – Recap 13:36 – Parisian Love










We benchmarked Opus 4.5, Sonnet 4.5, and Gemini 3 Pro on research tasks at Elicit - extracting answers from papers and writing systematic review reports. Results were pretty clear: *QA from papers:* Opus 4.5 dominates. 96.5% accuracy vs Gemini's 89.4%. Opus is also best on our combined "accurate + supported + direct" metric (76% vs 71%). Gemini is slightly better on claim supportedness *Report writing:* Opus 4.5 produces significantly better-supported reports than Sonnet 4.5, the previous best model for this task: - 62% of claims well-supported vs Sonnet's 54% - 31% poorly-supported vs Sonnet's 40% Opus is less verbose and writes ~20% fewer claims per report. We didn't bother comparing to Gemini since Sonnet 4.5 already wins 75% of head-to-head comparisons vs Gemini, and Gemini is 6x slower than Sonnet Qualitatively, in a manual screen of 5 reports, @PradyuPrasad found that Opus and Sonnet reach the same conclusions with no dramatic differences in output. Sonnet just writes much longer reports with more extensive commentary by default Opus still has stability issues at scale - we hit a bunch of 529 errors during testing. But once reliability improves, Opus 4.5 looks like the new default for accuracy-critical research workflows

We've raised $106M from @AltimeterCap @JeffBezos @sparkcapital @insightpartners @airstreet. The number is a green light to push harder. AI provides a credible path to design biology with precision and control. This will yield an age of abundance in curing disease and beyond.

Protein language models just got an upgrade. Meet Profluent-E1: a free, flexible, frontier protein sequence encoder. E1 is built with retrieval augmentation to learn from multiple sequences. Models trained over 4T tokens with only 150M-600M params, E1 is SOTA for zero-shot functional and unsupervised structural tasks. It raises the bar for protein representation learning and is freely available today.




Introducing GEN-0, our latest 10B+ foundation model for robots ⏱️ built on Harmonic Reasoning, new architecture that can think & act seamlessly 📈 strong scaling laws: more pretraining & model size = better 🌍 unprecedented corpus of 270,000+ hrs of dexterous data Read more 👇


