Topic
World Models
7 episodes
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Overview: World Models
We finally stop hand-waving and explain world models from the ground up — what they are, how they actually work, and why the field keeps coming back to them as the missing piece between AI that reacts and AI that plans.
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Overview: Next State Prediction
We finally slow down and explain next-state prediction from the ground up — the deceptively simple idea that if you train a model to guess what comes next, it ends up learning how the world actually works, and why that one trick is underneath almost everything in modern AI.
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Code as Worlds: Agentic Discovery of Executable World Representations for Physical Reasoning
Code-as-World represents physical worlds as executable code—objects, dynamics, and visual appearance all expressed as runnable specifications. An agent discovers these representations through a propose-execute-render-verify loop: hypothesize a world in code, run it in a simulator, check the outputs against video or language evidence, and refine. The result is quantitatively grounded supervision for training vision-language models on physical reasoning tasks like measuring velocity and displacement from video. Code-as-World-VL outperforms larger proprietary models on QuantiPhy benchmarks.
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AgentMercury: Your Agent Can Synthesize Verifiable Environments for Business Scenarios at scale
AgentMercury shifts agent training from handcrafted tasks toward executable business worlds: persistent, multi-service environments with deterministic SQL verifiers that can generate many tasks from one scenario. Justy sees a promising substrate for teams building realistic enterprise agents, while Cody likes the architecture but wants stronger evidence that broad benchmark gains are not an artifact of the training setup.
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Graph Engineering Athropic Playbook
Anthropic's knowledge-graph engineering playbook replaces classical NLP pipelines (trained NER, relation classifiers, entity-resolution heuristics) with a sequence of Claude API structured-output calls. The entire extraction-resolution-assembly-querying loop becomes prompt-based, scaling from Haiku (high-volume extraction) to Sonnet (reasoning). The graph serves multi-agent systems as shared memory, grounding layer for evaluator-optimizer loops, and persistent world model across sessions. The paper maps this onto Anthropic's five canonical agent patterns and reports precision/recall against a gold set.
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EvolvingWorld: An Open Schema Framework for Co Evolving Role Play Agents and World Model in Interactive Literary World
Masonry and Eyre dig into EvolvingWorld, a new framework that lets fictional characters and their world co-evolve across long stories. Eyre walks through the open-schema architecture and seven supervised tasks; Masonry sizes up who would actually build with this and where product pain lives. The hosts end up excited about the open-schema premise but skeptical of the benchmark’s generality.
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Qwen AgentWorld: Language World Models for General Agents
Justy and Cody dig into Qwen-AgentWorld, a new language world model that simulates seven agent environments. Cody breaks down the three-stage training pipeline (CPT, SFT, RL) and explains why a world model is the missing piece in agent development. Justy connects it to product reality: who ships this, what it actually unlocks, and whether it’s ready beyond the paper. They finish with cautious excitement and a quick Build Next check-in.