arXiv:2312.16424v4 Announce Type: replace-cross Abstract: Contrastive learning has shown to be effective to learn representations from time series in a self-supervised way. However, contrasting similar time series instances or values from adjacent timestamps within a time series leads to ignore their inherent correlations, which results in deteriorating the quality of learned representations. To address this issue, we propose SoftCLT, a simple yet effective soft contrastive learning strategy for time series. This is achieved by introducing instance-wise and temporal […]

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There are two things from our announcement today I wanted to highlight. First, a key part of our mission is to put very capable AI tools in the hands of people for free (or at a great price). I am very proud that we’ve made the best model in the world available for free in ChatGPT, without ads or anything like that.  Our initial conception when we started OpenAI was that we’d create AI and use it to […]

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Last year, I closed a seven-year chapter of my life with my startup (an AI writing assistant): $1.35M in funding, 300,000 users, and an acqui-hire exit to a large company. But behind the scenes of that deal, I was weathering a two-year “perfect storm”: plummeting revenue, the loss of a second business, and a painful divorce. In this article, I’ll share how I managed to navigate this chaos using nothing but a single Google Doc instead of complex […]

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arXiv:2207.03427v2 Announce Type: replace-cross Abstract: Compressed sensing has been a very successful high-dimensional signal acquisition and recovery technique that relies on linear operations. However, the actual measurements of signals have to be quantized before storing or processing. 1(One)-bit compressed sensing is a heavily quantized version of compressed sensing, where each linear measurement of a signal is reduced to just one bit: the sign of the measurement. Once enough of such measurements are collected, the recovery problem in 1-bit […]

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Cultural historian Thomas Berry issues a profound summons to reimagine humanity’s place within the living fabric of the Earth. He envisions a radical transformation—from a species that wounds its home to one that nurtures it—calling for the “resacralization of nature” and a renewal of our ecological consciousness. More than a philosophical reflection, Berry’s work is a moral and spiritual manifesto, demanding an overhaul of our ethics, politics, economics, and education. Only through this sweeping reorientation, he insists, can […]

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In the time it takes to watch a Netflix episode, I built a complete, on-chain video game. I’m a solo developer. My only partner was an AI copilot. And in about an hour, we built and deployed “Pixel Golf,” a 2D physics game running on the Avalanche blockchain. This isn’t just a fun experiment. It’s a blueprint for the future of game distribution — a future where “buying” a game means you actually, truly own it. The Problem with “Ownership” […]

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arXiv:2512.11150v3 Announce Type: replace-cross Abstract: Measuring long-run LLM outcomes (user satisfaction, expert judgment, downstream KPIs) is expensive. Teams default to cheap LLM judges, but uncalibrated proxies can invert rankings entirely. Causal Judge Evaluation (CJE) makes it affordable to aim at the right target: calibrate cheap scores against a small oracle slice, then evaluate at scale with valid uncertainty. We treat surrogate validity as auditable: for each policy or deployment context, a small oracle audit tests whether the learned […]

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