--- title: "Yann LeCun's $1B Bet Against LLMs [Part 2]" url: https://daily.dev/posts/yann-lecun-s-1b-bet-against-llms-part-2--vocccdwqh source_url: https://www.youtube.com/watch?v=v_jDvpEGTIg type: video:youtube source: "Welch Labs" published: 2026-05-30T18:38:48.270Z updated: 2026-05-30T18:39:10.303Z tags: ["llm", "robotics", "vlm"] reading_time: 40 upvotes: 1 comments: 0 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Yann LeCun's $1B Bet Against LLMs [Part 2] **[Welch Labs](https://daily.dev/sources/welchlabsvideo)** · 40 min read · 1 upvotes · 0 comments ## Summary Yann LeCun's JEPA (Joint Embedding Predictive Architecture) framework is examined as an alternative to the dominant VLA (Vision-Language-Action) approach for AI and robotics. The video covers VJEPA 2, a Meta model trained on 1 million hours of video without language supervision that achieves state-of-the-art video understanding benchmarks when paired with a language model. It also explores VLJA, a JEPA-based vision-language model that outperforms 7B parameter models using only 1.6B parameters by predicting text embeddings rather than raw tokens. LeCun's two main critiques of VLA models are detailed: (1) behavioral cloning is brittle and unscalable, and (2) VLAs lack explicit planning and world models. The JEPA alternative learns an action-conditioned world model that enables explicit planning via methods like the cross-entropy method, demonstrated on the Push-T task. Hierarchical world models are proposed as LeCun's solution to long-horizon planning. While JEPA-based approaches show theoretical advantages and promising early results, their demonstrated performance on robotics tasks remains significantly behind current VLA systems like Physical Intelligence's PI07. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [LeMario: Super Mario Bros trained on a JEPA Model](https://daily.dev/posts/lemario-super-mario-bros-trained-on-a-jepa-model-vlkw5cnrf) · Hacker News · 1 upvotes · 0 comments --- Tags: [#llm](https://daily.dev/tags/llm), [#robotics](https://daily.dev/tags/robotics), [#vlm](https://daily.dev/tags/vlm) [View this post on daily.dev](https://daily.dev/posts/yann-lecun-s-1b-bet-against-llms-part-2--vocccdwqh)