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AI · Sunday, 9 August 2026 · Issue 75 · 14 stories

$200k model beats giants; AI slashes diffusion cost 10x

Models & Releases

Open Sora 2.0: $200k-trained video model rivals commercial giants

Open‑Sora 2.0 (11 B parameters) was trained for under $200 K and released with full code and checkpoints. Benchmarks show it matches 11 B HunyuanVideo and 30 B Step‑Video on VBench and human‑preference scores. The low cost opens high‑fidelity video generation to labs and indie creators who can’t afford multi‑million‑dollar clusters.

github.com ↗7 min read at source

Research

DiLoCo scales predictably, beating traditional data parallel training under fixed compute

DeepMind’s new paper quantifies how the DiLoCo algorithm, which relaxes gradient synchronization across data centers, scales with model size under a fixed compute budget. The authors find that when properly tuned, DiLoCo not only follows a predictable scaling law but also achieves lower loss and larger optimal batch sizes than standard data‑parallel training, even for modest models.

arxiv.org ↗1 min read at source

Inductive Moment Matching slashes diffusion models’ cost by 10× while boosting quality

Luma’s new pre‑training technique, Inductive Moment Matching (IMM), produces higher‑quality samples than diffusion models while cutting sampling time by more than tenfold. It uses a single, stable objective, unlike consistency models, and comes with open‑source code, checkpoints, and two arXiv papers. The advance promises faster, more efficient multimodal AI without sacrificing fidelity.

lumalabs.ai ↗4 min read at source

LLMs Over‑Help Students, Struggle to Hold Back, New TutorMoments Study Shows

AllenAI’s TutorMoments framework replays real K‑12 math tutoring sessions to test whether LLMs can judge when to intervene or let students wrestle with a problem. Across the dataset, models consistently over‑help, giving too much scaffolding, even when prompted to balance help versus challenge. The team releases the de‑identified transcript set, code, and model replays for open research.

huggingface.co ↗7 min read at source

DyT lets Transformers Drop Layer Norm without Losing Accuracy

Researchers introduce Dynamic Tanh (DyT), a simple element‑wise tanh scaling that replaces layer‑norm in Transformers. Across vision, language, supervised and self‑supervised tasks, DyT‑enabled models match or surpass the performance of normalized counterparts, challenging the belief that normalization is mandatory.

arxiv.org ↗1 min read at source

Sakana AI’s AI Scientist‑v2 Generates First Fully Autonomous Paper to Pass ICLR Review

Japan’s Sakana AI used its AI Scientist‑v2 system to write a research paper that passed blind peer review at an ICLR 2025 workshop, earning an average 6.33/10. The team withdrew the manuscript before publication to be transparent about AI‑only authorship, marking the first time an end‑to‑end AI system cleared a reputable ML conference review and sparking debate over automated science.

nature.com ↗1 min read at source

Policy & Safety

Tools & Open Source

ThunderKittens Unlocks 2× Faster GEMM & Attention on Nvidia Blackwell GPUs

ThunderKittens now ships BF16/FP8 GEMM and forward/backward attention kernels optimized for Nvidia’s Blackwell B200. The kernels hit cuBLAS/cuDNN performance on B200 and are up to two‑times faster than the same ops on H100, thanks to new 5th‑gen tensor cores, Tensor Memory and CTA‑pair data‑flow tricks. Developers can squeeze top‑line throughput from Blackwell without low‑level CUDA gymnastics.

Agent S: Open‑source AI agent mastering browsers, OS, and mobile

Agent S is an open‑source framework that lets AI agents control browsers, operating systems, and mobile apps. Its latest S3 release hits 72.6% on OSWorld, surpassing human performance, and outperforms other agents on WindowsAgentArena and AndroidWorld. Available for Linux, macOS, and Windows via the gui‑agents library.

github.com ↗7 min read at source

ARGUS lets 10k‑GPU clusters trace performance with <2% overhead

ARGUS provides always‑on, fine‑grained tracing for clusters over 10,000 GPUs while keeping overhead under 2%. It compresses raw kernel events 3,700× and automatically isolates anomalies such as straggling ranks or kernel stalls. Deployed for six months, it has already helped diagnose compute, communication, and pipeline issues in production LLM training.

arxiv.org ↗2 min read at source

You’re caught up.

That was all 14 stories in the 9 August issue.