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  1. Story3 reports · 1 facts

    Hao AI Lab open-sources Minecraft AI player Jev

    Hao AI Lab has open-sourced the Minecraft agent Jev and, after 1,795 rounds of matches, published how it works. The agent does not train a model; instead, a SOTA LLM agent, under human supervision, evolves prompts from the robot's own logs. Against human players in Block UHC, it won 70% of rounds. According to its description, against fully skilled scripted opponents, v1 lost all matches, and in less than two hours v9 won all. Each decision is a single forward pass of DJev on DiffusionGemma, generating no tokens, taking 24 ms on NVIDIA Blackwell, which the team says is 2.5 times faster than a leading inference engine. The team has also open-sourced the inference engine DJev-serve, which executes each decision as a single CUDA graph on GB200 NVL72 and B200.

    Block UHC, it won 70% of rounds. According to its description, against fully skilled scripted opponents, v1 lost all matches, and in less than two hours v9 won all. Each decision is a single forward pass of DJev on DiffusionGemma, generating no tokens, taking 24 ms on NVIDIA Blackwell, which the team says is 2.5 times faster than a leading inference engine. The team has also open-sourced the inference engine DJev-serve, which executes each decision as a single CUDA graph on GB200 NVL72 and B200.

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