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    2025-04-01T02:32:24+00:00
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    Pi's technical stack includes:
    - **Frontend**: next.js and Vercel for the playground.
    - **Training Infrastructure**: Runpod and GCP for GPU training.
    - **Algorithms**: TRL for training, ModernBert and Llama as base models.
    - **Cloud Services**: GCP and Azure for calling 4o and Anthropic services.
    - **Scoring System**: Uses adjustable tree-shaped metrics across 20+ dimensions.
    - **Optimizers**: Includes redesigned ML techniques like DSPy validators and GRPO reward models.

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