Tom Aarsen

132 trust practitioner @tomaarsen.com · 2,631 followers
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Practitioner with public evidence across AI research, Models & releases.

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Sentence Transformers, SetFit & NLTK maintainer Machine Learning Engineer at 🤗 Hugging Face

Articles & links

🤗💚I'm very excited to continue our open source and open weight journey together with NVIDIA! See the announcement here: blogs.nvidia.com/blog/nvidia-...

NVIDIA to Acquire Hugging Face blogs.nvidia.com
AI Weekly's analysis →
  • NVIDIA agreed to acquire Hugging Face for $12.93 billion, with closing expected in the first half of 2027.
  • Jensen Huang pledged that NVIDIA compute will not be required to build on or deploy through the Hugging Face platform.
  • On top of the purchase price, NVIDIA will pay up to $1 billion in employee retention bonuses, per Engadget.
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View on Bluesky · ♥ 27 ↻ 3 ↩ 0 · 7 from the directory shared this · 55d ago

Check out the model directly here: huggingface.co/google/embed... Or read Google's launch post: blog.google/innovation-a...

EmbeddingGemma 2: an open, lightweight multimodal embedding model blog.google
AI Weekly's analysis →
  • Google released EmbeddingGemma 2, a 740M-parameter multimodal embedding model built on Gemma 4 and licensed under Apache 2.0.
  • The model has an 8K token context window with 768-dimensional outputs truncatable to 512, 256, or 128 via Matryoshka learning.
  • Quantized on a Pixel 11 Pro, memory is roughly 191MB text-only and 567MB multimodal; MTEB Code reaches 78.68 versus 68.76 for v1.
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View on Bluesky · ♥ 0 ↻ 0 ↩ 1 · 4 from the directory shared this · 22d ago

📖 The @Google EmbeddingGemma2 team has published their technical report! EmbeddingGemma2 was just 740M parameters, but its omni-modal nature and pareto-optimal performance makes it one of the most exciting releases of the last months for me. huggingface.co/papers/2610....

Paper page - EmbeddingGemma 2: Unified and Efficient Multimodal Representations huggingface.co
AI Weekly's analysis →
  • The 744M model splits parameters across a 271M text backbone, 167M vision encoder and 305M audio encoder, outputting one 768-dim space.
  • The text-only Q4_C quantized variant peaks at 191 MB on a Google Pixel 11 Pro; the full multimodal stack takes 567 MB.
  • Native audio retrieval scores 69.54 MRR@10 against 50.95 for Google's prior EG1 ASR-plus-text pipeline, with the gap widest cross-language.
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View on Bluesky · ♥ 32 ↻ 4 ↩ 1 · 2 from the directory shared this · 7h ago

🐭 MICE-P lets you precompute document representations while keeping learned query-document attention for reranking. Two small English models, usable through Sentence Transformers and very strong search rerankers! How they work 🧵 huggingface.co/collections/...

MICE - a xpmir Collection huggingface.co
View on Bluesky · ♥ 3 ↻ 0 ↩ 1 · 1d ago

Recent commentary

📈 New blog post: Training and Finetuning Multi-Vector Embedding Models with Sentence Transformers. As a practical example, I finetuned a ColBERT-style model for medical retrieval. 14.5 hours on one RTX 3090, and it beats every general-purpose retriever I could find. Thread 🧵

View on Bluesky · ♥ 21 ↻ 4 ↩ 2 · 63d ago

🤗 Google Deepmind is back with EmbeddingGemma 2, which maps text (including code), images, video & audio into one shared 768-dimensional embedding space. 740M total parameters, 100+ languages, Apache 2.0 & Sentence Transformers support. Thread with highlights 🧵

View on Bluesky · ♥ 20 ↻ 5 ↩ 1 · 22d ago

This is by far the cutest robot I've ever seen. Under $400, with a camera, speaker, LiDAR, NFC, Bluetooth, Wifi, etc. + you can train it yourself with reinforcement learning. Plus it has rollerskates. It's so precious 🦆

View on Bluesky · ♥ 18 ↻ 1 ↩ 2 · 62d ago

🧵 I've just released Sentence Transformers v6.2.0! Featuring model merging with Arcee AI's mergekit, load models faster, & evaluators share work across GPUs automatically. Plus lower-memory losses, multi-vector improvements & plenty of fixes. Thread with highlights 👇

View on Bluesky · ♥ 13 ↻ 2 ↩ 2 · 7d ago

The recent Tokenizers v1 update seriously sped up tokenization for any NLP task, but now @SimonBrandeis is cooking another improvement, especially for BERT tokenizers: an additional ~5x (or ~50x total from the previous tokenizers v0.23).

View on Bluesky · ♥ 11 ↻ 3 ↩ 1 · 13d ago

Tencent just published R3-Skill, a two-stage retrieval stack purpose-built for a problem RAG-style retrievers weren't designed for: routing LLM agent skills (think Anthropic's SKILLmd format). Two 0.6B models, both Apache 2.0, one embedding model, and one reranker. 🧵

View on Bluesky · ♥ 11 ↻ 1 ↩ 1 · 106d ago

🤗 I've just released SetFit v1.2.0! SetFit trains text classifiers from a handful of labeled examples per class by fine-tuning a Sentence Transformer, no prompts or LLMs needed. v1.2 brings support for transformers v5, Sentence Transformers v6 & huggingface_hub v1. Thread 🧵

View on Bluesky · ♥ 9 ↻ 1 ↩ 1 · 54d ago

🎉 @lightonai.bsky.social just published LightOn-rerank: rerankers that score text passages or document page images against a query. Six models: Qwen3.5 at 0.8B / 2B / 4B, each in a pointwise and a generative listwise variant. Excellent for text <-> image retrieval. 🧵

View on Bluesky · ♥ 7 ↻ 1 ↩ 1 · 103d ago

💧 Liquid AI released 2 multilingual retrieval models, the first bidirectional members of the LFM family. Both 350M params, 11 languages (ar, de, en, es, fr, it, ja, ko, no, pt, sv): - LFM2.5-Embedding-350M (bi-encoder) - LFM2.5-ColBERT-350M (multi-vector, late interaction) 🧵

View on Bluesky · ♥ 5 ↻ 1 ↩ 1 · 132d ago

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