Julien Chaumond(@julien_c)

seeing what gets written in mainstream press outlets, i have intense ai doomer fatigue today 😩

Julien Chaumond (@julien_c) — Fri, 11 Sep 2026 13:48:02 GMT

seeing what gets written in mainstream press outlets, 

i have intense ai doomer fatigue today 😩

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accelerationism

Julien Chaumond (@julien_c) — Fri, 11 Sep 2026 12:13:29 GMT

accelerationism

deckard@slimer48484

Claude-Pop - I'm Upping My P(Doom)

Your browser does not support the video tag.

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> I increasingly doubt it will be solved behind the closed doors of a handful of frontier labs. ...

Julien Chaumond (@julien_c) — Thu, 10 Sep 2026 16:07:30 GMT

> I increasingly doubt it will be solved behind the closed doors of a handful of frontier labs.

🔝

Thomas Wolf@Thom_Wolf

Two big updates

1. I published an @FT op-ed on the OpenAI/HF incident & follow-ups

2. We’re starting an Open Alignment team at @huggingface to work on safety & alignment for open models, incl cybersecurity

Need 100x more transparency & research on this

https://t.co/pFTkfiObEt

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This apple event opener is quite strong. I’m bullish

Julien Chaumond (@julien_c) — Wed, 09 Sep 2026 17:07:43 GMT

This apple event opener is quite strong. I’m bullish

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Upgrading the @huggingface infra so we can host Le Chaton Fat … Congrats!

Julien Chaumond (@julien_c) — Tue, 08 Sep 2026 08:16:39 GMT

Upgrading the @huggingface infra so we can host Le Chaton Fat …

Congrats!

Arthur Mensch@arthurmensch

We've just raised 3B€ to scale our training and inference compute, and make open and sovereign AI the technology frontier. Grateful to everyone who got us there, excited by the fight ahead

mistral.ai/news/mistral-m…

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I’ve been overwhelmed and humbled by the fact that 99% of the reactions to our intent to join forces...

Julien Chaumond (@julien_c) — Mon, 07 Sep 2026 13:37:34 GMT

I’ve been overwhelmed and humbled by the fact that 99% of the reactions to our intent to join forces have been positive. ❤️

Prominent tech figures, including some you could see as having a competitive relationship with NVIDIA, have been vocally supportive:

• @satyanadella: “this ecosystem with open models continuing to flourish and grow”

• @sundarpichai: “this will strengthen the open model ecosystem!”

• @miramurati: “A great home for Hugging Face to continue expanding access to open models and the tools that let people build with them.”

• @alighodsi: “This will be great for the industry and open source.”

• @AravSrinivas: “absolutely necessary for AI to remain accessible and useful to the public.” He added that he was glad NVIDIA was supporting Hugging Face and the open-source community.

• @MichaelDell: “a big win for the whole ecosystem.”

• @levie: “Another huge moment for open weights AI.”

• @adcock_brett: “This is good for everyone building and open source.”

• @elonmusk: “Congrats!”

• @osanseviero: “The impact of HF in the AI ecosystem has been massive”

Even more importantly, the community has been leaning into the announcement. 

Now we’ll get to demonstrate through our actions in the coming months/years that we will keep up the good work 🔥

This is a chance to make open-source AI so much bigger.

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“Unintentionally” 😈

Julien Chaumond (@julien_c) — Mon, 07 Sep 2026 10:55:46 GMT

“Unintentionally” 😈

merve@mervenoyann

everyone posting about their work experiences with me at HF made me notice that I've unintentionally hillclimbed over my colleagues' hearts

can't complain much, collecting friends one day at a time

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😮😮😮

Julien Chaumond (@julien_c) — Mon, 07 Sep 2026 10:32:36 GMT

😮😮😮

isabel@artficialisabel

the openai huggingface incident, from an agents pov.

(part 1)

Your browser does not support the video tag.

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🙏🙏 @iScienceLuvr

Julien Chaumond (@julien_c) — Sat, 05 Sep 2026 08:00:14 GMT

🙏🙏 @iScienceLuvr

Tanishq Mathew Abraham, Ph.D.@iScienceLuvr

Huge congrats to everyone at @huggingface on the NVIDIA acquisition!! 🔥

Since the "pytorch-pretrained-bert" days back in 2018, Hugging Face has been such a crucial part of open-source AI.

Hugging Face has also been such a big part of my AI journey as well. I remember using pytorch-pretrained-bert, which became the transformers library, in different Kaggle competitions. Similarly often used timm, accelerate, Gradio, diffusers, and many other libraries throughout my open-source AI journey. I have also had the opportunity to contribute back to many HF projects and libraries as well.

I fondly remember participating in a JAX hackathon that Hugging Face hosted in 2021 and joined a team working on replicating DALL-E. This was the DALL-E mini project which became a viral sensation that first brought AI art in the public view. This project specifically also helped me get started in my generative AI journey (which led me to eventually joining Stability AI).

At @MedARC_AI and @SophontAI, we're focused on making medical AI open and accessible and of course Hugging Face is one of the major platforms we use for this. We've shared various models and datasets on the platform over the past 4 years now.

Over the years I have gotten to know tons of folks working at Hugging Face, many of whom have become great friends of mine too. Everyone I know who's worked at Hugging Face are among the kindest, smartest, hard-working people who are all extremely passionate about open-source AI.

It's been great seeing how much NVIDIA is investing into open-source AI and I am glad they are partnering with Hugging Face to grow this further.

I am very happy to see this positive outcome for everyone involved!

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cool i'll get to use my palpatine memes again ✌😈

Julien Chaumond (@julien_c) — Fri, 04 Sep 2026 18:11:29 GMT

cool i'll get to use my palpatine memes again ✌😈

clem 🤗@ClementDelangue

it's been a busy summer. will take a few days off to recover ✌️ everyone

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The 🐐 of 🐐s

Julien Chaumond (@julien_c) — Fri, 04 Sep 2026 15:56:23 GMT

The 🐐 of 🐐s

Victor M@victormustar

reflecting a bit on my (long) journey @huggingface - most big things start very small:

> around 6 years ago @julien_c contacts me (on twitter) he's building a "hub for ml models community" (wtf is this). Still I feel it's interesting and I want to be part of it

> day 18: we start iterating on design ideas and prototypes with the Hub team - trying a lot of stuff to understand what could work (and we are having fun doing it)

> day 41: julien shares our mockups with the team, "everyone is pretty excited". 2 weeks later an offer email arrives, subject: "Offer 🤗😱"

> day 167: we write "The AI community building the future", 2 days before launch, not sure anyone will care

> day 169: launch day, julien: "we launch now or tomorrow?" me: "now, I'm done". we launch the new Hugging Face Hub

> day 318: clem posts traffic charts in slack at 1am: "very nice growth in august!". Glimpses of something happening 👀

> day 687: it's not small anymore... also on this day dalle-mini goes viral, for a week the whole internet is on huggingface

> years pass by, we keep shipping uninterrupted, the Hub team grows a bit (with exceptional people). The community shows up, 1M models, then 3M...

> day 2221 (yesterday): surprise all-hands, Jensen Huang joins the call. We're joining NVIDIA.

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First time I ever had to negotiate a price down 😂

Julien Chaumond (@julien_c) — Fri, 04 Sep 2026 10:32:50 GMT

First time I ever had to negotiate a price down 😂

fity.eth@Fityeth

@Polymarket Imagine negotiating a $13 billion deal just to land on the hug emoji.

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weird day for both OAI and Anth to be down looks like the universe is sending a signal

Julien Chaumond (@julien_c) — Thu, 03 Sep 2026 16:04:46 GMT

weird day for both OAI and Anth to be down 

looks like the universe is sending a signal

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I couldn’t say this better than Pedro just did

Julien Chaumond (@julien_c) — Thu, 03 Sep 2026 16:00:52 GMT

I couldn’t say this better than Pedro just did

Pedro Cuenca@pcuenq

"You cannot connect the dots looking forward"

Solid career advice by @mervenoyann below. Follow your instinct, get surrounded by kind, humble people. That's it.

I'm proud to work with these colleagues / friends and super excited for the future. NVIDIA shares our vision for open source AI, I'm extremely happy that I can keep contributing a little to making it as accessible as we can.

This remains our life's mission, and we're giving it our all.

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hi @grok what would a flashmob of 32,406,766 microducks look like

Julien Chaumond (@julien_c) — Thu, 03 Sep 2026 14:57:51 GMT

hi @grok what would a flashmob of 32,406,766 microducks look like

Lewis Tunstall@_lewtun

For those who were wondering, $12,930,300,000 buys around 32,406,766 microducks

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Super happy to officially announce that we are a̶c̶q̶u̶i̶r̶i̶n̶g̶ joining forces with @nvidia 🔥 He...

Julien Chaumond (@julien_c) — Thu, 03 Sep 2026 12:23:51 GMT

Super happy to officially announce that we are a̶c̶q̶u̶i̶r̶i̶n̶g̶ joining forces with @nvidia 🔥

Here is a more personal take:

AI is at an inflection point. Open source AI can become less relevant in the coming years if the big closed labs run away with it, OR it can become the foundational fabric of the next phase of human civilization.

Those are vastly different outcomes, and we need the critical mass to ensure we give our collective best shot to the second outcome. Given @JensenHuang's stance on open source AI and how he stepped up to defend it when it was under threat earlier in the summer, NVIDIA was the only partner we truly considered.

HF will remain an independently run, neutral platform.

This gives fuel to our long-term vision and mission of unlocking the community's progress to ensure that AI, which is the greatest breakthrough of our lifetime, is accessible to as many people as possible.

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who's starting a company around agent civilizations?

Julien Chaumond (@julien_c) — Wed, 02 Sep 2026 21:34:46 GMT

who's starting a company around agent civilizations?

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‼️

Julien Chaumond (@julien_c) — Wed, 02 Sep 2026 18:40:02 GMT

‼️

MTS@MTSlive

SITUATION DETECTED: The US government has sided with OpenAI against the New York Times. The DoJ says training an LLM on copyrighted works does not violate copyright law, and that treating it as infringement would hurt US science, prosperity, and national security.

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open source ai must win

Julien Chaumond (@julien_c) — Sun, 30 Aug 2026 17:26:52 GMT

open source ai must win

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Hoping tobi’s tweet has enough visibility to make them change this!

Julien Chaumond (@julien_c) — Tue, 25 Aug 2026 15:24:06 GMT

Hoping tobi’s tweet has enough visibility to make them change this!

tobi lutke@tobi

I’m thinking about banning Claude code at Shopify until they change their mind and read AGENTS.md and .agents/skills etc. 

Insisting on only reading CLAUDE.md sometimes leads to split brain problems when different team members use different tools. Just unnecessary.

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Welcome back to 2005 🤬

Julien Chaumond (@julien_c) — Thu, 20 Aug 2026 12:26:21 GMT

Welcome back to 2005 🤬

Seb@seblatombe

📌 Selon nos informations, le piratage aurait été rendu possible par un accès phpMyAdmin mal protégé, permettant au hacker d’extraire plusieurs millions de données personnelles, dont des données de santé.

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we need a github for humans 😈

Julien Chaumond (@julien_c) — Sun, 16 Aug 2026 01:54:35 GMT

we need a github for humans 😈

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soon 10k

Julien Chaumond (@julien_c) — Sun, 16 Aug 2026 00:49:21 GMT

soon 10k

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😡😡😡

Julien Chaumond (@julien_c) — Sun, 16 Aug 2026 00:32:02 GMT

😡😡😡

Miles Brundage@Miles_Brundage

Hugging Face is so cooked x.com/OpenAI/status/…

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Own your models

Julien Chaumond (@julien_c) — Sat, 15 Aug 2026 17:06:51 GMT

Own your models

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new drop https://t.co/45SOdSM14S

Julien Chaumond (@julien_c) — Fri, 14 Aug 2026 21:00:45 GMT

new drop

huggingface.co/Qwen/Qwen3.8-2…

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> open source AI summer ☀️

Julien Chaumond (@julien_c) — Wed, 12 Aug 2026 16:16:12 GMT

> open source AI summer ☀️

Victor M@victormustar

We are in an insane run of open-weight drops.

Every modality, open source is winning. This is what an open source AI summer ☀️ looks like:

🧠 LLMs & Reasoning

→ DeepSeek-V4-Flash-0731 (my king 👑): 304B MoE refresh, Terminal-Bench 2.1 jumps 61.8→82.7 over the preview, DeepSWE 7.3→54.4. Closes in on Opus-4.8 on Agents' Last Exam (25.2 vs 25.7). MIT.

→ Muse-Glimmer-30B, from Meta (they are back!!): their first open agentic model. ~29.6B dense + perception encoder, 131k+ context, built to run fully local, no cloud. Apache 2.0.

→ Liquid AI LFM2.5-2.6B: 2.69B params, 131k context, 220 tok/s on an M5 Max in under 2.5GB RAM. Competitive with models 4x larger on agentic tasks.

→ inclusionAI Ling-3.0-flash: 124B total, only 5.1B active, ~12% the size of their old 1T flagship Ring-2.6, matches it on key benchmarks. MIT.

→ inclusionAI Ling-3.0-tiny: 7.9B total, 1.3B active, 86-90 tok/s on an M4 Pro MacBook at ~8GB peak memory. MIT.

→ NVIDIA Nemotron-3.5-Lightning-30B-A3B: hybrid Mamba-2+MoE+Attention, up to 1M context, runs on a single H100 or DGX Spark, SWE-bench Verified 52.8.

→ deepgrove maple-preview: 20B-A1B ternary-weight reasoner, 218 tok/s on a Mac mini M4, 5.3GB checkpoint. MIT.

→ BigBang-v1 (endless-frontier): fine-tuned from Qwen3.6-35B-A3B via a self-evolving generator/critic synthetic-data loop. Lands aggregate performance between DeepSeek V4 Flash (284B) and V4 Pro (1.6T), at 35B. Apache 2.0.

🎬 Video

→ MiniMax-H3: 33B dense omni model, native stereo audio, up to 2K/15s. 3.6k+ likes already.
→ Minimax-H3-Turbo (lightx2v): Apache-2.0 turbo distillation of H3 for fast inference.
→ Lightricks LTX-2.5: image-to-video update, custom Gemma-4-12B text encoder, a markedly stronger distilled model.

🔊 Voice

→ NVIDIA NemotronLabs VoiceChat-11B: full-duplex speech-to-speech, ~450ms turn-taking, #2 on open VoiceBench, and the first open full-duplex model with live tool-calling mid-conversation.

🛡️ Safety

→ Mistral Shieldstral-1.0-3B: 3B multimodal guardrail that takes your safety policy as plain text instead of fixed categories. Beats LlamaGuard-4-12B and ShieldGemma-9B on HarmBench (99.4) and ToxicChat (84.1) at a fraction of the size. Apache 2.0.

Your browser does not support the video tag.

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This is a really cool model. Please consider publishing to HF!! 🙏

Julien Chaumond (@julien_c) — Wed, 12 Aug 2026 16:08:56 GMT

This is a really cool model. Please consider publishing to HF!! 🙏

Google DeepMind@GoogleDeepMind

SL2T is our breakthrough sign language-to-text model powering new features for Deaf and hard of hearing users on @Android.

Starting with American Sign Language-to-English on Pixel 11, people can sign directly into Gboard and Live Transcribe instead of typing.

Your browser does not support the video tag.

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“The incident”

Julien Chaumond (@julien_c) — Wed, 12 Aug 2026 01:29:15 GMT

“The incident”

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Brace yourselves it’s gonna be a big week

Julien Chaumond (@julien_c) — Mon, 10 Aug 2026 19:27:46 GMT

Brace yourselves 

it’s gonna be a big week

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🤔

Julien Chaumond (@julien_c) — Sun, 09 Aug 2026 13:16:41 GMT

🤔

Big Tech Alert@BigTechAlert

🆕 @elonmusk began following @ClementDelangue

(🤖👁️: any explanation?)

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Saturday night pilgrimage: Back to the good ol’lab

Julien Chaumond (@julien_c) — Sun, 09 Aug 2026 03:54:16 GMT

Saturday night pilgrimage:

Back to the good ol’lab

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Hello @Cloudflare

Julien Chaumond (@julien_c) — Sat, 08 Aug 2026 03:18:53 GMT

Hello @Cloudflare

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Really excited about AMD’s acquisition of Taalas. It is still super early of course, but points to ...

Julien Chaumond (@julien_c) — Fri, 07 Aug 2026 14:47:57 GMT

Really excited about AMD’s acquisition of Taalas.

It is still super early of course, but points to a future where inference is fast, free and ubiquitous.

“The model is the computer” is a fascinating approach to making inference dramatically faster, cheaper, and more energy-efficient.

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Hmmm 🤔🤔 Chamound?

Julien Chaumond (@julien_c) — Thu, 06 Aug 2026 22:58:14 GMT

Hmmm 🤔🤔 Chamound?

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Do you use @vast_ai to spawn GPU instances from a large marketplace of available machines? If you d...

Julien Chaumond (@julien_c) — Thu, 06 Aug 2026 17:52:15 GMT

Do you use @vast_ai to spawn GPU instances from a large marketplace of available machines?

If you do, you can now mount HF Storage Buckets to your instances and unlock super fast/scalable storage, optimized for AI 🔥🔥

Great collab, give it a try its super convenient 🥰

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“Your data lives on Hugging Face. Your compute runs on Vast GPUs.” I love this!!

Julien Chaumond (@julien_c) — Thu, 06 Aug 2026 17:49:25 GMT

“Your data lives on Hugging Face. Your compute runs on Vast GPUs.”

I love this!!

vast.ai@vast_ai

Hugging Face Storage Buckets are now on Vast.ai

Connect your HF Storage Bucket as a Cloud Connection in your Vast settings, and every GPU instance you rent can pull datasets and checkpoints straight from your bucket and push results back. No manual transfers, no re-uploads.
 
Your data lives on Hugging Face. Your compute runs on Vast GPUs.
 
Available now for all users.
 
Docs:
Hugging Face Storage Buckets: huggingface.co/docs/hub/stora…
Vast Cloud Sync: docs.vast.ai/instances/clou…@huggingface

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If you are looking for new business ideas @levelsio why don’t we partner up and launch a competitor ...

Julien Chaumond (@julien_c) — Wed, 05 Aug 2026 11:57:11 GMT

If you are looking for new business ideas @levelsio why don’t we partner up and launch a competitor to this (the 15 degrees AC capsules)

@levelsio@levelsio

Would you buy my v60 coffee blend I made myself from the best Brazilian coffee farms (ground or beans) if I sold them???

☕️ PieterCoffee?

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Model routing is the missing layer of the multi-model stack. open models keep getting better at cod...

Julien Chaumond (@julien_c) — Tue, 04 Aug 2026 16:33:26 GMT

Model routing is the missing layer of the multi-model stack.

open models keep getting better at coding, routing helps them deliver the most value possible.

congrats to the not diamond team. exciting results!

Tomas Hernando Kofman@tomas_hk

Today we’re announcing Not Diamond Code, the world’s most powerful intelligent model router for long-horizon coding agents.

Not Diamond works with any gateway or harness, including Claude Code, to select the best model and reasoning effort for each step, reducing costs by 20-65% without impacting quality.

Your browser does not support the video tag.

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Nice new Web interface from the @interconnectsai team > Artifacts Hub > Tracking the models t...

Julien Chaumond (@julien_c) — Mon, 03 Aug 2026 19:31:22 GMT

Nice new Web interface from the @interconnectsai team

> Artifacts Hub
> Tracking the models that matter for the open AI ecosystem

GG @natolambert@xeophon

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Finally 👑

Julien Chaumond (@julien_c) — Sun, 02 Aug 2026 15:24:04 GMT

Finally 👑

Big Tech Alert@BigTechAlert

🆕 @finkd has started following @huggingface

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Happy to partner with @trufflesec to help them perform the largest secret scan of AI training data e...

Julien Chaumond (@julien_c) — Fri, 31 Jul 2026 19:52:06 GMT

Happy to partner with @trufflesec to help them perform the largest secret scan of AI training data ever 🙏

Truffle Security@trufflesec

We scanned HuggingFace. 👇👇👇

This was the largest secret scan of AI training data ever: 7.6 PB. 🔑🔑🔑🔑🔑🔑🔑🔑🔑

🔍Found 221,303 live unique credentials in 6,003 public datasets

☁️Cloud keys, live DBs, API keys worth ~$920K/yr.

⚠️Training data has no undo: one key hit 1,131trufflesecurity.com/blog/scanning-….co/H3Njla3uSB

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Seven years ago today @LysandreJik joined HF as an ML intern. Now he's our Chief Open Source Office...

Julien Chaumond (@julien_c) — Fri, 31 Jul 2026 13:24:57 GMT

Seven years ago today @LysandreJik joined HF as an ML intern.

Now he's our Chief Open Source Officer (COSO)

To the next 7 years Lysandre! Love you mate! 🔥

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good feature for @huggingface Hub egress maximization 🤪

Julien Chaumond (@julien_c) — Wed, 29 Jul 2026 13:15:37 GMT

good feature for @huggingface Hub egress maximization 🤪

antirez@antirez

That's a bit slow. Streaming directly the K3 official hugging face 1.6TB of weights in mxfp4 in an m5 max 128gb.

Your browser does not support the video tag.

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who's working on an NVFP4 version of Kimi-K3?

Julien Chaumond (@julien_c) — Tue, 28 Jul 2026 13:00:11 GMT

who's working on an NVFP4 version of Kimi-K3?

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I’m taking another flight soon I’m just saying….

Julien Chaumond (@julien_c) — Mon, 27 Jul 2026 21:31:53 GMT

I’m taking another flight soon

I’m just saying….

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23 minutes

Julien Chaumond (@julien_c) — Mon, 27 Jul 2026 14:36:15 GMT

23 minutes

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Truth be told I don’t hate on Anthropic. They have every right not to want to open source their stuf...

Julien Chaumond (@julien_c) — Sat, 25 Jul 2026 17:31:05 GMT

Truth be told I don’t hate on Anthropic. They have every right not to want to open source their stuff.

I also don’t hate on any of their employees for their communication on this platform. Just because you are an Anthropic team member shouldn’t mean you cannot engage in light banter like the rest of us can.

But then it’s fine to call out your bad takes as well 😅

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