Sonoma Alpha is the new Grok 4 Fast! Grok 4 Fast is the latest frontier model from xAI, with multimodal reasoning and a 2M token context window. (1/2)
MARKET TRENDS
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Funding Announcements Over Product Indicate Company Trajectory Risk
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You can often predict a company's course if their announcements talk more about how much investment they got than their product
— @levelsio (@levelsio) 20 septembre 2025
If I'd raise $50M maybe I'd not even tweet it? Just use it to improve the product and get more users and talk about that
Having $$$ in the bank tells… https://t.co/ClSBH5Q1oxYou can often predict a company's course if their announcements talk more about how much investment they got than their product If I'd raise $50M maybe I'd not even tweet it? Just use it to improve the product and get more users and talk about that Having $$$ in the bank tells
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Economists Examine Transformative AI Impact on Firms and Society
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Nice thread of talk summaries from papers presented by economists & economic sociologists at a conference taking the prospect of transformative AI seriously. Lots of smart people doing interesting work to try and understand what this new era means for firms, science & all of us.
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Grok-4 Fast Model Launch: Cheap, Powerful, 2M Context Window
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@xai was cooking with their new Grok-4 fast Model! So freaking cheap and so good at the same time + 2m context window. This is huts! "2M token context window, and a unified architecture that blends reasoning and non-reasoning modes in one model" Input tokens $0.20 / 1M $0.40 / -
AI Benchmarks Beyond Training Data: Olympiads and New Metrics
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It is why the gold medals at the various math and coding Olympiads were a big deal: unsaturated benchmarks that weren't in the training data with clear human comparisons. We are down to the various measures of task length (METR), HLE, FrontierMath, vending machine operation…
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Grok 4 Fast Achieves Top Rankings on Search and Text Arena
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We partnered with @lmarena_ai to evaluate Grok 4 Fast on both Search and Text Arena, achieving #1 and #8 respectively.
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Grok 4 Fast Achieves New Pareto Intelligence Frontier Record
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Grok 4 Fast sets a new record on the Pareto Intelligence frontier as reported by @ArtificialAnlys
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Firepower Discussion on AI: Wood, Laffer, Haggerty, Roudi, Sudock, Odell
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The firepower in this discussion is immense at “Imagine If”. Cathy Wood, Art Laffer, Senator Haggerty, Rod Roudi, Harry Sudock, and Matt Odell.
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Agentic and Generative AI Reshape UK Economy and Services
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Agentic AI and generative AI are reshaping how the UK works, creates, and connects. From accelerating design workflows and conversational AI, to advancing accessibility and transforming financial services—new opportunities are emerging across every sector. With #NVIDIAInception
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Recall Reaches 10,000 Paying Users: From Dropout to Success
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Today, Recall has over 10,000 paying users and continues to grow. From grad school dropout to self-taught engineer.
From an overlooked MVP to a product people compare to Google’s NotebookLM. Proof that persistence can turn small beginnings into big outcomes.