Daily Research Brief 2026-04-16

📊 Token usage: estimated from retrieval and writing scale.

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

Editor’s Note

Ask HN: why are so many rolling out their own AI/LLM agent sandboxes? Show HN: Mirror AI — an LLM agent that takes actions, not just chats. Practical tips for optimizing documentation for LLMs, agents and chatbots.

1. Latest arXiv Papers

1. One Token per Highly Selective Frame: Towards Efficient Video Understanding

2. Seedance 2.0: Advancing Video Generation for the World

3. ROSE: Retrieval-Oriented Segmentation Enhancement

4. SpatialEvo: Self-Evolving Spatial Intelligence

5. From P(y|x) to P(y): Investigating Reinforcement Learning Reward Shifts

6. Geometric Context Transformer for Streaming 3D Understanding

7. LongCoT: Benchmarking Long-Horizon Chain-of-Thought Reasoning

8. Don’t Let the Video Speak: Audio-Contrastive Prompting for Video QA