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Alex Ratner Profile
Alex Ratner

@ajratner

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@SnorkelAI @uwcse / prev @StanfordAILab – Interested in data management systems for machine learning, weak supervision, and impactful applications.

Menlo Park, CA
Joined November 2013
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@ajratner
Alex Ratner
2 months
Agentic AI will transform every enterprise–but only if agents are trusted experts. The key: Evaluation & tuning on specialized, expert data. I’m excited to announce two new products to support this–@SnorkelAI Evaluate & Expert Data-as-a-Service–along w/ our $100M Series D!. ---
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@ajratner
Alex Ratner
30 minutes
RT @dmizrahi_: Excited to share our new work: “Language Models Improve When Pretraining Data Matches Target Tasks”. Yes, it sounds obvious….
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@ajratner
Alex Ratner
5 hours
RT @zihengh1: LLM judges are powerful for automated evaluation but expensive and biased.📣 Meet PAJAMA, a new framework that distills LLM ju….
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@ajratner
Alex Ratner
6 hours
Ready to build expert data at scale?
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@ajratner
Alex Ratner
6 hours
For more - check out
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@ajratner
Alex Ratner
6 hours
Grok 4 results are now in for our latest multi-turn, agentic benchmark, Finance Reasoning. Grok 4 ranked #7, with performance constrained by our 50-turn cap. On completed traces- it showed clear improvement over Grok 3. Efficiency matters in agentic settings!. Links in 🧵👇
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@ajratner
Alex Ratner
2 days
RT @ajratner: Excited to share our latest @SnorkelAI Leaderboard on Finance Reasoning – a realistic but challenging agentic benchmark invol….
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@ajratner
Alex Ratner
2 days
And - if you’re ready to build expert data at scale, let’s talk!
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@ajratner
Alex Ratner
2 days
For more info on this benchmark and other, check out .
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@ajratner
Alex Ratner
2 days
You can try a sample task on HuggingFace 👉
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@ajratner
Alex Ratner
2 days
Excited to share our latest @SnorkelAI Leaderboard on Finance Reasoning – a realistic but challenging agentic benchmark involving tool use, reasoning, and document analysis over 10-Ks with a top score of just 51.9% accuracy. For LLM agents to thrive in the enterprise, they need
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@ajratner
Alex Ratner
2 days
And - if you’re ready to build expert data at scale, let’s talk!
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@ajratner
Alex Ratner
2 days
To see more details on this benchmark as well as other ones, check out
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@ajratner
Alex Ratner
2 days
You can try a sample task on HuggingFace 👉
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@ajratner
Alex Ratner
2 days
RT @fredsala: Heading to #ICML! I’ll be representing SprocketLab at @UWMadison and @SnorkelAI. Reach out if you want to chat about data-cen….
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@ajratner
Alex Ratner
7 days
RT @karimatiyeh: Finance teams waste hours chasing receipts and answering weird policy questions. Now they don’t have to. Introducing our….
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@ajratner
Alex Ratner
8 days
RT @SnorkelAI: Working with @AWS to push what’s possible in financial services: from AI agents for underwriting to data-driven copilots. W….
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@ajratner
Alex Ratner
9 days
RT @JieyuZhang20: Tokenization kickstarts every Transformer pipeline—shaping how models digest data. Our latest work introduces semantic, g….
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@ajratner
Alex Ratner
14 days
Excited for this!.
@SnorkelAI
Snorkel AI
15 days
Catch @ajratner live at RAISE Summit Paris 🇫🇷. 📍 Grace Hopper Stage.🗓️ Tues, July 8 | 12:00 PM. Learn how Snorkel powers frontier LLMs with expert data. 🎟️ 20% off tickets: #RAISE2025 #GenAI #SnorkelAI
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@ajratner
Alex Ratner
15 days
RT @albert_ge_95: Online data mixing reduces training costs for foundation models, but faces challenges:.⚠️ Human-defined domains miss sema….
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@ajratner
Alex Ratner
21 days
RT @SnorkelAI: We just dropped a benchmark dataset on Hugging Face to test AI agents on real-world insurance underwriting tasks—built with….
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