Releases from frontier labs, major companies and research institutes — grouped by model, deduplicated across HuggingFace, OpenRouter and official blogs.
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Perplexity🇺🇸Major lab
pplx-embed-v2-context-9b-preview is a contextual embedding model for document chunks in RAG systems. A document is passed as a list of chunks; the chunks are encoded together, so each chunk's embedding reflects its surrounding context, and one embedding is returned per chunk.
Perplexity🇺🇸Major lab
PII-Tracer detects personal data in chat conversations. It tags nine PII categories with BIOES labels and adds a conversation-level sensitivity score. The repo ships weights only, so an MLX implementation of the encoder and heads must be provided separately.