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Roshan Sumbaly Profile
Roshan Sumbaly

@rsumbaly

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Senior Director of AI, @AIatMeta - Llama & Movie Gen. Prior life @coursera, @linkedIn, @stanford

Joined January 2009
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@rsumbaly
Roshan Sumbaly
3 months
Llama 4 is here with 4 models!πŸ¦™πŸ¦™πŸ¦™πŸ¦™. I'm back to share with the world what the team has been cooking. Today we're open-sourcing 2 state-of-the-art omni models (Scout, Maverick - including pre-trained weights), previewing a 3rd one (Behemoth) and will drop a reasoning one soon.
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@rsumbaly
Roshan Sumbaly
3 months
RT @Ahmad_Al_Dahle: We're glad to start getting Llama 4 in all your hands. We're already hearing lots of great results people are getting w….
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@rsumbaly
Roshan Sumbaly
3 months
RT @bhutanisanyam1: Llama 4 takes 43 seconds to analyse 900k tokens!
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@rsumbaly
Roshan Sumbaly
3 months
Great thread by @omarsar0 summarizing everything we released today. .
@omarsar0
elvis
3 months
Llama 4 is here!. - Llama 4 Scout & Maverick are up for download.- Llama 4 Behemoth (preview).- Advanced problem solving & multilingual.- Support long context up to 10M tokens.- Great for multimodal apps & agents.- Image grounding .- Top performance at the lowest cost.- Can be
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@rsumbaly
Roshan Sumbaly
3 months
And this is only our medium sized non-reasoning model. 😍.
@lmarena_ai
lmarena.ai
3 months
Arena Trend: Meta just got a huge jump from 1268 β†’ 1417!
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@rsumbaly
Roshan Sumbaly
3 months
Thank you for all the support from the @lmarena_ai team!.
@lmarena_ai
lmarena.ai
3 months
BREAKING: Meta's Llama 4 Maverick just hit #2 overall - becoming the 4th org to break 1400+ on Arena!πŸ”₯. Highlights:.- #1 open model, surpassing DeepSeek.- Tied #1 in Hard Prompts, Coding, Math, Creative Writing.- Huge leap over Llama 3 405B: 1268 β†’ 1417.- #5 under style control
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@rsumbaly
Roshan Sumbaly
7 months
Welcome to Meta @_arohan_ - super excited to work together (after 15 years!).
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@rsumbaly
Roshan Sumbaly
7 months
Early Christmas gift that we wanted to share with the community - last one for the year and a nice way to say good bye to Llama 3. 2025 will be the year of Llama 4!.
@Ahmad_Al_Dahle
Ahmad Al-Dahle
7 months
Introducing Llama 3.3 – a new 70B model that delivers the performance of our 405B model but is easier & more cost-efficient to run. By leveraging the latest advancements in post-training techniques including online preference optimization, this model improves core performance at
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@rsumbaly
Roshan Sumbaly
9 months
When we wrote the first research proposal for Movie Gen 6 months back we had two goals in mind: .🎬 First, accelerate creative expression for everyone - from production studios to the 100s of millions of content creators on Meta .πŸ“œSecond, accelerate research in media generation.
@aneeshchaganty
Aneesh Chaganty
9 months
A few weeks ago, i was given early access to movie gen from @Meta. My only instructions were to make something with it. As always, a very special thank you to my mom, who digitized over 100 hours of home video footage to make this story possible.
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@rsumbaly
Roshan Sumbaly
10 months
And not just the paper, early next week we'll be releasing our full evaluation sets - the field of media generation would really benefit from having canonical benchmarks. Stay tuned!.
@soumithchintala
Soumith Chintala
10 months
yes, Meta released a full scientific paper on MovieGen, with a lot of details that'll help the field move forward.
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@rsumbaly
Roshan Sumbaly
10 months
Back to the lab to create the next Llama and Movie Gen foundation models.
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@rsumbaly
Roshan Sumbaly
10 months
Summary reel with examples.
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@rsumbaly
Roshan Sumbaly
10 months
Lights, camera, action - introducing Meta's Movie Gen!. Our latest breakthrough in AI-powered media generation, setting a new standard for immersive AI content creation. We're also releasing a 92 page detailed report of what we learned, along with evaluation prompts that we hope
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@rsumbaly
Roshan Sumbaly
10 months
We're still baking the next herd of Llamas - stay tune and keep sharing us feedback!. πŸ¦™πŸ¦™πŸ¦™πŸ¦™.
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@rsumbaly
Roshan Sumbaly
10 months
🟑 Llama Stack .A set of interfaces that we believe would make the developer experience around Llama better. We're partnering with several companies today to provide canonical implementations of these interfaces, along with packaged "distributions" to decrease guesswork for
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@rsumbaly
Roshan Sumbaly
10 months
πŸ”΅ Llama 3.2 11B and 90B image reasoning models.These are focused on visual recognition tasks and trained via adapters, being a good drop-in replacement for their corresponding text model equivalents. Further, we're open-sourcing both base and instruct-aligned models - so much
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@rsumbaly
Roshan Sumbaly
10 months
🟒 Llama 3.2 1B and 3B text-only models.These 128K context length models were pruned from 8B + distilled from 8B/70B logits, thereby making them state-of-the-art on tasks like summarization, instruction following, and rewriting. Also they can run on-device using @PyTorch
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@rsumbaly
Roshan Sumbaly
10 months
Llama 3.2 - release #3 for 2024! πŸ’ͺπŸ”₯πŸ¦™. 3 months ago we released our flagship 405B model that leveled the playing ground and gave everyone open access to a world-class foundation model. We've been overwhelmed by the community's response and seen a wide range of fine-tuned.
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@rsumbaly
Roshan Sumbaly
1 year
This is an exciting moment not just for the Llama community, but also the wider AI space. Having an open weight model that is competitive is important for us to move the field forward. Thank you @lmsysorg for bringing this up so fast and @anyscalecompute for hosting!.
@lmarena_ai
lmarena.ai
1 year
Exciting news! @metaai's Llama-3.1 results are hereπŸ”₯. The Llama-3.1 series, extensively tested over the past week, has gathered over 10K community votes. Now, Llama-3.1-405B has climbed to #3 on the Overall Arena leaderboard, marking the first time an open model has ranked in
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