Alejandro (@alexrs95) 's Twitter Profile
Alejandro

@alexrs95

Research Engineer @Cohere_Labs. I write code, travel, and talk about food.

ID: 62323966

linkhttp://alexrs.me calendar_today02-08-2009 18:56:50

22,22K Tweet

943 Followers

630 Following

SomosNLP (@somosnlp_) 's Twitter Profile Photo

Queremos agradecer de nuevo el maravilloso patrocinio de cohere Labs al #HackathonSomosNLP 2025: $500 de su API para cada equipo 🔥 🔥 🔥 Hoy aprenderemos cómo utilizarla con Alejandro. ¡Únete a y pregúntale cualquier duda sobre la API y Cohere! ✅ forms.gle/bDaBC7XV3iu2tr…

Queremos agradecer de nuevo el maravilloso patrocinio de <a href="/Cohere/">cohere</a> Labs al #HackathonSomosNLP 2025: $500 de su API para cada equipo 🔥 🔥 🔥

Hoy aprenderemos cómo utilizarla con <a href="/alexrs95/">Alejandro</a>. ¡Únete a  y pregúntale cualquier duda sobre la API y Cohere!

✅ forms.gle/bDaBC7XV3iu2tr…
Sara Hooker (@sarahookr) 's Twitter Profile Photo

It is critical for scientific integrity that we trust our measure of progress. The lmarena.ai has become the go-to evaluation for AI progress. Our release today demonstrates the difficulty in maintaining fair evaluations on lmarena.ai, despite best intentions.

It is critical for scientific integrity that we trust our measure of progress. 

The <a href="/lmarena_ai/">lmarena.ai</a> has become the go-to evaluation for AI progress.

Our release today demonstrates the difficulty in maintaining fair evaluations on <a href="/lmarena_ai/">lmarena.ai</a>, despite best intentions.
Alejandro (@alexrs95) 's Twitter Profile Photo

Are there any tools that given a subword (BPE, SentencePiece, etc) tokenizer vocabulary, can infer what languages were likely used to train it? If not, sounds like a fun project! 👀

Overleaf (@overleaf) 's Twitter Profile Photo

⚠️ Attention: The site is currently down. Our engineering team is investigating. We will update as soon as possible. You can track progress here: status.overleaf.com Sorry for any inconvenience.

Irem Ergün (@irombie) 's Twitter Profile Photo

I'm excited to share our new pre-print ShiQ: Bringing back Bellman to LLMs! arxiv.org/abs/2505.11081 In this work, we propose a new, Q-learning inspired RL algorithm for finetuning LLMs 🎉 (1/n)

Sander Land (@magikarp_tokens) 's Twitter Profile Photo

🔠 UTF-8 was never meant for language models. Yet every major tokenizer still uses it, creating unfair "byte premiums". Why should your native script cost more to tokenize? It's time for a change. 🧵👇

🔠 UTF-8 was never meant for language models.
Yet every major tokenizer still uses it, creating unfair "byte premiums".
Why should your native script cost more to tokenize? It's time for a change. 🧵👇
Cohere Labs (@cohere_labs) 's Twitter Profile Photo

How can we make language models more flexible to adapt to new languages after pretraining? 🌏 🧠 Our latest work investigates whether a tokenizer trained on more languages than the pretraining target can improve language plasticity without compromising pretraining performance.

How can we make language models more flexible to adapt to new languages after pretraining? 🌏

🧠 Our latest work investigates whether a tokenizer trained on more languages than the pretraining target can improve language plasticity without compromising pretraining performance.
Diana Abagyan (@dianaabagyan) 's Twitter Profile Photo

🚨New pretraining paper on multilingual tokenizers 🚨 Super excited to share my work with Cohere Labs: One Tokenizer To Rule Them All: Emergent Language Plasticity via Multilingual Tokenizers

🚨New pretraining paper on multilingual tokenizers 🚨

Super excited to share my work with <a href="/Cohere_Labs/">Cohere Labs</a>: One Tokenizer To Rule Them All: Emergent Language Plasticity via Multilingual Tokenizers
Alejandro (@alexrs95) 's Twitter Profile Photo

Oye Vodafone España hay gente llamando en vuestro nombre con datos de personas que no son clientes. Y cuando uno pregunta que le aclaren de qué compañía llaman, responden de malas formas diciendo que “lo han dejado claro y que no les haga perder tiempo”. ¿Esto dónde os lo denuncio?

Alejandro (@alexrs95) 's Twitter Profile Photo

Many colleagues from cohere and Cohere Labs will be in Vienna next week. Go talk to them and learn about our research. They're pretty nice people! You can even share a piece of Sacher cake together and discuss some papers! 🧠

Cohere Labs (@cohere_labs) 's Twitter Profile Photo

Applications are now open for the next cohort of the Cohere Labs Scholars Program! 🌟 This is your chance to collaborate with some of the brightest minds in AI & chart new courses in ML research. Let's change the spaces breakthroughs happen. Apply by Aug 29.

Applications are now open for the next cohort of the Cohere Labs Scholars Program! 🌟

This is your chance to collaborate with some of the brightest minds in AI &amp; chart new courses in ML research. Let's change the spaces breakthroughs happen.

Apply by Aug 29.
SomosNLP (@somosnlp_) 's Twitter Profile Photo

¿Estás buscando una nueva oportunidad? ¿Te gustan los proyectos abiertos que desarrolla Cohere Labs? ¡Aplica a su Research Scholars Program antes del 29 de agosto!

Cohere Labs (@cohere_labs) 's Twitter Profile Photo

🚨1 day left to apply! Don’t miss your chance to jump in the deep end of ML research, with the resources and mentorship to succeed. Worldwide. Remote. Full-time. Paid. cohere.com/research/schol…