Daily Research Brief 2026-05-03

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Covers the latest AI research, open source and industry moves, updated daily.

Editor’s Note

Six tech giants’ Q1 2026 AI capex passed $700B; OpenAI released the GPT-5.5 flagship, positioned as ‘a new way of working with computers’; the EU AI Act officially took effect — the world’s first AI regulation; Stanford’s 2026 AI Index put the US-China gap at just 2.7%; DeepSeek V4 went open-source, reshaping the agent ecosystem.

1. Latest arXiv Papers

1. LongVie 2: A World Model for Minute-Long Video Generation — https://arxiv.org/abs/2512.13604

2. AVID: A Benchmark for Audio-Visual Desynchronization in Long Videos — https://arxiv.org/abs/2604.13593

3. Trust-videoLLMs: A Trustworthiness Benchmark for Video LLMs — https://arxiv.org/abs/2506.12336

4. Helios: Real Real-Time Long Video Generation Model — https://arxiv.org/abs/2603.04379

5. Kaleido: A Multi-Image Reference Video Generation Framework — https://arxiv.org/abs/2510.18573

6. Thinking with Visual Primitives: A Visual-Primitive Reasoning Framework

7. PAT3D: Physics-Enhanced Text-to-3D Scene Generation

8. A Review Framework for Scientific AI Reasoning Chains — https://arxiv.org/abs/2604.24589