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Denis Yarats
Perplexity
@denisyarats
Cofounder & CTO @perplexity_ai
United States
perplexity.ai
Joined July 2015
716
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14.9K
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  • Pinned
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    Denis Yarats
    Perplexity
    @denisyarats
    Feb 25
    this has been the most exciting project to work on. a lot of foundational infra we've built over time (search engine, browsing cloud, memory engine, and more) all came together in one platform. this was also built by a small group of people and a lot of AI coding agents.
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    Perplexity
    @perplexity_ai
    Feb 25
    Introducing Perplexity Computer. Computer unifies every current AI capability into one system. It can research, design, code, deploy, and manage any project end-to-end.
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    Denis Yarats
    Perplexity
    @denisyarats
    Apr 26, 2021
    Thrilled to announce the Unsupervised Reinforcement Learning (URL) workshop at ICML 2021, where we bring together researchers to discuss challenges and possible solutions applying un(self-)supervised learning techniques to enhance RL agents. Website: urlworkshop.github.io 1/
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    Denis Yarats
    Perplexity
    @denisyarats
    Apr 29, 2020
    Exciting to announce our new work together with @ikostrikov and @rob_fergus: Image Augmentation Is All You Need: Regularizing Deep Reinforcement Learning from Pixels. Paper: arxiv.org/abs/2004.13649 Code: github.com/denisyarats/drq Website: sites.google.com/view/data-regu… [1/N]
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    arxiv.org
    Image Augmentation Is All You Need: Regularizing Deep...
    We propose a simple data augmentation technique that can be applied to standard model-free reinforcement learning algorithms, enabling robust learning directly from pixels without the need for...
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    Denis Yarats
    Perplexity
    @denisyarats
    Jul 21, 2021
    Excited to release DrQ-v2! DrQ-v2 is more sample efficient, runs 3.5X faster than DrQ, and is the first model-free agent that solves humanoid from pixels. co-authors: @rob_fergus, @alelazaric, @LerrelPinto tech report: arxiv.org/pdf/2107.09645 code: github.com/facebookresear… 1/N
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    Denis Yarats
    Perplexity
    @denisyarats
    Sep 25, 2025
    we've been hard at work building the foundational search infra to power Perplexity. today, we're sharing details, evals, and making it available via api.
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    Perplexity
    @perplexity_ai
    Sep 25, 2025
    Introducing Perplexity Search API We've built a search index of billions of webpages to provide real-time, quality information from the web. Now developers have access to the full power of our index, providing the most accurate results in milliseconds. perplexity.ai/hub/blog/intro…
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    Denis Yarats
    Perplexity
    @denisyarats
    Nov 1, 2021
    Currently It is challenging to measure progress in Unsupervised RL w/o having common tasks & protocol. To take a step in addressing this issue we release our #NeurIPS2021 paper: (URLB) Unsupervised RL Benchmark! Paper: bit.ly/3bwHhY8 Code: bit.ly/3bAvI1S 1/N
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    Denis Yarats
    Perplexity
    @denisyarats
    Feb 14, 2025
    We are excited to launch an agentic search in @perplexity_ai! We've spent a lot of time optimizing its quality and speed to ensure it is available to all users and truly useful. Give it a try!
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    Perplexity
    @perplexity_ai
    Feb 14, 2025
    Introducing Deep Research on Perplexity. Deep Research lets you generate in-depth research reports on any topic. Available to everyone for free—up to 5 queries per day for non-subscribers and 500 queries per day for Pro users.
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    Denis Yarats
    Perplexity
    @denisyarats
    Jan 27, 2025
    👀
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    41K
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    Denis Yarats
    Perplexity
    @denisyarats
    Jan 4, 2024
    Extremely excited to announce our Series B! We really appreciate the trust of our investors and users in giving us an opportunity to advance our mission of building the best answer engine!
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    Perplexity
    @perplexity_ai
    Jan 4, 2024
    We are happy to announce that we've raised $73.6 million in Series B funding led by IVP with participation from NVIDIA, NEA, Bessemer, Elad Gil, Jeff Bezos, Nat Friedman, Databricks, Tobi Lutke, Guillermo Rauch, Naval Ravikant, Balaji Srinivasan.
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    Denis Yarats
    Perplexity
    @denisyarats
    Feb 10, 2022
    Currently, Offline RL data is collected under the same reward that is used for evaluation, not ideal... @brandfonbrener and I propose an alternative approach – ExORL, that uses Unsupervised RL & relabeling to construct datasets for Offline RL. paper: arxiv.org/abs/2201.13425 1/10
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    Denis Yarats
    Perplexity
    @denisyarats
    Feb 24, 2021
    Happy to share my new work -- Proto-RL, a task-agnostic pre-training scheme that reconciles exploration and representation learning in image-based RL! with: @rob_fergus, Alessandro Lazaric, and @LerrelPinto. paper: arxiv.org/pdf/2102.11271… code: github.com/denisyarats/pr… [1/N]
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    Denis Yarats
    Perplexity
    @denisyarats
    Feb 5, 2025
    Congrats to @GoogleDeepMind on launching Gemini 2.0 Flash! I've been playing with it for some time now, and it is very impressive!
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    Perplexity
    @perplexity_ai
    Feb 5, 2025
    Gemini 2.0 Flash — the latest advanced model by Google — is now available with Perplexity Pro. Update your app to find it in settings under "AI Model"
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    Denis Yarats
    Perplexity
    @denisyarats
    Oct 14, 2019
    Excited to share our new work lead by @rjerryma, where we attempt to demystify RAdam (Liu et al. 2019) and its automatic learning rate warmup schedule. Paper: arxiv.org/abs/1910.04209 [1/4]
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    Denis Yarats
    Perplexity
    @denisyarats
    Feb 24, 2025
    One of the most exciting projects I've been working on is coming soon! If you want to join us in working on Comet, please consider applying: job-boards.greenhouse.io/perplexityai/j…
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    Perplexity
    @perplexity_ai
    Feb 24, 2025
    Comet: A Browser for Agentic Search by Perplexity Coming soon.
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