Zyphra Hierarchical Attention (ZHA) retrofits pretrained LLMs with a tree indexer, adding 81,920 parameters, nearly matching dense accuracy.
Letter’s Letterpress-1 coding agent turns growth tasks into pull requests, offering 760 tools and pricing from $100 monthly.
NVIDIA Releases Nemotron 3.5 Transcribe, an open speech LLM with 4.3B active parameters and a 4.71% English WER.
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