Expert attention map

The Who's Who of AI

What credible people across AI noticed, why it matters, and where the field is converging or disagreeing.

2,397 searchable experts 4,280 tracked across all sources
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Posts are grouped by conversation and tone. Select a lens to filter the stream; these are never permanent labels on people.

Showing signals surfaced by Tom Aarsen ×

The developments commanding sustained expert attention

One card per development. Sources are clustered; reaction bundles describe these posts, never the people behind them.

Established Models & releases Release 16d ago
⚡ 15 h early

EmbeddingGemma 2: an open, lightweight multimodal embedding model

4 directory members surfaced this signal.

4 experts 1 community 1 sources clustered
How the network is reacting 2 experts are emphasizing building & implementation.
Shared emphasis

Building & implementation

2 experts

How teams are shipping and applying it.

“Read the blog for all the details, dive into the docs, and start building today: https://t.co/UVpgDrXvvV”

Developing Models & releases Release 1d ago
NVIDIA Nemotron 3.5 retrieval models launch

Nemotron 3.5 Retriever - a nvidia Collection

1 directory member surfaced this signal.

1 expert 1 community 1 sources clustered

“The collection has Embed 1B, Embed 8B, and Rerank 8B in BF16, plus an NVFP4 version of Embed 1B for Blackwell GPUs. The BF16 models have Sentence Transformers examples in their cards, and all use OpenMDW-1.1: huggingface.co/collections/...”

Established Models & releases Signal 8d ago

Train 400x faster Static Embedding Models with Sentence Transformers

1 directory member surfaced this signal.

1 expert 1 community 1 sources clustered

“Nice work to @SimonBrandeis , this is very important work for speeding up some of the most popular Sentence Transformer models, for example. And Static embedding models (huggingface.co/blog/static-...) should be very greatly sped up as well!”

Established AI business Resource 15d ago
⚡ 4 h early
sentence-transformers v6.0.0 MultiVectorEncoder release

Multi-Vector (Late Interaction) Embedding Models with Sentence Transformers

1 directory member surfaced this signal.

1 expert 1 community 1 sources clustered

“I quite like github.com/lightonai/fa...! There's some docs here: huggingface.co/blog/multi-v... And indeed, FAISS won't work, as it's not designed for MaxSim and multi-vector embeddings indeed.”

Established AI business Resource 15d ago
fast-plaid multi-vector search release

GitHub - lightonai/fast-plaid: High-Performance Engine for Multi-Vector Search

1 directory member surfaced this signal.

1 expert 1 community 1 sources clustered

“I quite like github.com/lightonai/fa...! There's some docs here: huggingface.co/blog/multi-v... And indeed, FAISS won't work, as it's not designed for MaxSim and multi-vector embeddings indeed.”

Established AI field signal Signal 16d ago

pplx-embed-v2 - a perplexity-ai Collection

2 experts are actively discussing the implications.

1 expert 1 community 1 sources clustered

“Credit to the Perplexity Research team for the models. Both are MIT licensed. pip install "sentence-transformers>=6.0.0" "transformers>=5.4.0" huggingface.co/collections/...”

2 experts discussed this · 12 posts
Tom Aarsen: Credit to the Perplexity Research team for the models. Both are MIT licensed. pip install "sentence-transformers>=6.0.0" "transformers>=5.4.0" huggingface.co/collections/...
Tom Aarsen: The 0.6B model starts from Qwen3.5-0.8B, with its text tower pruned from 24 to 12 layers. 594M total parameters, but only ~240M active for text encoding & ~340M for images. The large embedding tabl…
Tom Aarsen: Retrieval gains also carry into agent answers. On BrowseComp+, Perplexity's GPT-OSS-120B agent with the 9B retriever reaches 64.0% accuracy: +4.9 points over the next best evaluated ColBERT model, …
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Established AI field signal Resource 10d ago
Hugging Face models hub resource

Models – Hugging Face

1 directory member surfaced this signal.

1 expert 1 community 1 sources clustered

“I think it's ~3 main factors: 1) people are excited about its multimodal possibilities that they don't really have with their current models, 2) it had good release timing, causing it to become the #1 trending model on hf.co/models which resulted in more ey…”