Faster Rates for Federated Variational Inequalities

In this paper, we study federated optimization for solving stochastic variational inequalities (VIs), a problem that has attracted growing attention in recent years. Despite substantial progress, a significant gap remains between existing convergence rates and the state-of-the-art bounds known for federated convex optimization. In this work, we address this limitation by establishing a series of …

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Grok 4.7 is now available on Amazon Bedrock

xAI’s Grok 4.7 is now available on Amazon Bedrock, adding a frontier model built for coding, long-running agents, and knowledge work to the Bedrock model catalog. It offers a 500K token context window and supports configurable reasoning effort at four levels: low, medium, high, and xhigh. Grok 4.7 is served on the bedrock-runtime endpoint through …

Why your startup needs open models alongside frontier APIs

Every week, I talk with founders who are building at an unbelievable pace. Teams are moving from inception to product-market fit faster than ever, with foundation models wired deeply into their core product workflows. Yet as startup architectures mature, a clear divide has emerged between teams struggling with margins and those scaling sustainably. The most …

I still can’t believe I can generate this all locally (Minimax H3)

Spent the whole day today trying to create this random transformation video. In total, I generated around 180 videos. A few initial images were generated with Krea2, and later all edits were done with the Qwen 2.1 edit model. All done using i2v with first / last frame technique. Everything was done in ComfyUI with …

Blender camera motion + MiniMax H3 ref2vid in ComfyUI (workflow + prompts)

I’ve been experimenting with building the camera move in Blender before generating the AI video. This example combines a five-second mannequin render with a character reference sheet and a waterfront background image in MiniMax H3’s reference-to-video workflow. How I made it: Used Codex CLI with Blender MCP to build a simple mannequin scene and animate …