not much happened today

**Samsung's 7M Tiny Recursive Model (TRM)** achieves superior reasoning on ARC-AGI and Sudoku with fewer layers and MLP replacing self-attention. **LeCun's team** introduces **JEPA-SCORE**, enabling density estimation from encoders without retraining. **AI21 Labs** releases **Jamba Reasoning 3B**, a fast hybrid SSM-Transformer model supporting up to 64K context tokens. **Alibaba's Qwen3 Omni/Omni Realtime** offers a unified audio-video-text model with extensive language and speech support, outperforming Gemini 2.0 Flash on BigBench Audio. **Alibaba** also debuts **Qwen Image Edit 2509**, a top open-weight multi-image editing model. **ColBERT Nano** models demonstrate effective retrieval at micro-scale parameter sizes. In reinforcement learning, **CoreWeave**, **Weights & Biases**, and **OpenPipe** launch serverless RL infrastructure reducing costs and speeding training. **Stanford's AgentFlow** presents an in-the-flow RL system with a 7B backbone outperforming larger models on agentic tasks. This update highlights advances in **recursive reasoning**, **density estimation**, **multimodal architectures**, **long-context modeling**, **retrieval**, and **serverless reinforcement learning**.