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The Sparse Frontier Sparse Attention Trade-offs in Transformer LLMs

The Sparse Frontier Efficient sparse attention methods are key to scale LLMs to long contexts. We conduct the largest-scale empirical analysis that answers: 1. 🤏🔍 Are small dense models or large sparse models better? 2. ♾️What is the maximum permissible sparsity per task? 3.

This was fun! Excellent work led by Piotr Nawrot during his internship at cohere

Result of Nathaniel R. Robinson’s internship on the Cohere multilingual team last year! Check it out!

I’m excited to see what you’ve built! 🚀

Our ML Efficiency group is looking forward to welcoming Piotr Nawrot next week on May 28th, for a session on "The Sparse Frontier: Sparse Attention Trade-offs in Transformer LLMs" Learn more: cohere.com/events/Cohere-…

Welcome, Ruochen! ✨

Tomorrow at 6pm CET I'm giving a talk about our latest work on Sparse Attention, at Cohere Labs. I plan to describe the field as it is now, discuss our evaluation results, and share insights about what I believe is the future of Sparse Attention. See you!

Over 7000 languages are spoken worldwide 🌐, but AI safety efforts focus on only a fraction of them. Our latest paper draws on our multi-year efforts with the wider research community to explore why this matters and how we can bridge the AI language gap.

Here are key recommendations to make AI safer & more equitable for everyone: 🌐 Incentivize the creation of open-access multilingual datasets 🪟 Encourage transparency in model language coverage 🔬 Prioritise resources towards multilingual research

🚀 By *learning* to compress the KV cache in Transformer LLMs, we can generate more tokens for the same compute budget. This unlocks *inference-time hyper-scaling* For the same runtime or memory load, we can boost LLM accuracy by pushing reasoning even further!

We release a major improvement upon last year's Dynamic Memory Compression. DMS is better, easier, and faster to train. Future of Long Context is 1) KV Cache Compression + 2) Sparse Attention, both training-aware to avoid training-inference mismatch. Imho, DMS is SOTA for 1).

Code-release from our superstar intern, Piotr Nawrot! • Write sparse attn patterns in 50 lines, not 5k • Compatibility w models supported by vLLM, support for TP • 6 SOTA baselines with optimized implementations + 9 eval tasks • Research-grade extensibility = rapid prototyping

The Multilingual Team at cohere is hiring! If this sounds like you, please apply: - strong coding skills and a keen eye for detail - experience working with the challenges & joys of multilingual data Help us bring AI to the world! 🌏🌍🌎 jobs.ashbyhq.com/cohere/a87be94…

Make Command speak better & in more languages

We're looking for a new member for the multilingual team with a focus on data engineering! Please apply at the link below:

Excited to announce the call for papers for the Multilingual Representation Learning workshop #EMNLP2025 sigtyp.github.io/ws2025-mrl.html with Duygu Ataman Catherine Arnett Jiayi Wang Fabian David Schmidt Tyler Chang Hila Gonen and amazing speakers: Alice Oh, Kelly Marchisio, & Pontus Stenetorp

Wei-Yin Ko was one of the earliest members of our Open Science Community and an early collaborator on our open science research. We’re proud to have been part of Wei-Yin’s journey from community collaborator to colleague, and grateful he took an early bet on working with us 🚀