Emrick (@EmrickSini) header
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LLM inference, optimization & large-scale serving for RL training pipelines @hcompany_ai. Previously built on-device voice ML libraries @Sonos.

Paris, France
Joined June 2019
Photo by Emrick (@EmrickSini)Photo by Emrick (@EmrickSini)Photo by Emrick (@EmrickSini)Photo by Emrick (@EmrickSini)Photo by Emrick (@EmrickSini)Photo by Emrick (@EmrickSini)Photo by Emrick (@EmrickSini)Photo by Emrick (@EmrickSini)Photo by Emrick (@EmrickSini)Photo by Emrick (@EmrickSini)
🫣🫣🫣
The becoming begins.
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Emrick retweeted
The becoming begins.
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Really cool work from @DecagonAI, especially the on policy drafter automated finetuning ! Curious about the benchmark workload and how much training data was needed to get there 🤔
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We made online RL for computer-use agents 24% faster with 5% fewer GPU-hours. At GTC Europe, I shared how we used prime-rl + NVIDIA Dynamo to post-train Nemotron Omni (30B-A3B) at H, with inference capacity that adapts during training🧵
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Counterintuitively, we used more inference GPUs (8 to 14.8 on average). But the trainer kept 32 H100s allocated throughout. Cutting rollout wait from 51s to 14s/step saved more GPU-time than the additional inference workers consumed. Training curves below 👇
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Great time speaking at NVIDIA GTC Berlin about post-training open-source models with Prime-RL and Dynamo! I shared some of the optimizations we' e made at @hcompany_ai to speed up training and improve inference efficiency. Thanks to everyone who joined and for the great discussions afterward! 🚀
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Heading to NVIDIA #GTCBerlin this Thursday! Catch our talk on using RL + NVIDIA Dynamo to ship open models as production agents at H Company alongside NVIDIA & Prime Intellect. Session details: nvidia.com/en-eu/gtc/session… Let’s grab a coffee if you're in town! ☕️
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Excited to chat with @NVIDIAAI this Thursday about how we are using Dynamo to scale VLM serving for computer-use agents at H ! Looking forward to the discussion and live Q&A! 🚀
Live with @NVIDIAAI this Thursday: how we serve vision-language models for computer-use agents. Thu Oct 8 · 1PM CEST / 7AM ET With @AvshalomM (inference team lead) and @EmrickSini (research engineer). Live Q&A.
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Call for London based runners 🏃 @hcompany_ai is organising a short run followed by breakfast on Oct 16 - bring your friends, colleagues, dogs and let's sweat a bit!
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Today we're releasing the Holo4 model family. Once again, we've pushed the Pareto frontier of capability vs. cost per task for computer-use agents. A few of the things that made this possible: • We scaled our environments and built an Agentic Task Factory that has generated ~10k verifiable tasks across web, desktop and MCP environments • We further improved our SFT and asynchronous online RL infrastructure to train efficiently and reliably on long horizon agentic tasks • We expanded beyond pure GUI interaction: Holo4 can click, code, call MCP tools and APIs, choosing the right interface for the task More details below 👇
Today we're releasing Holo4, our new family of generalist computer-use models. Holo4 can click, code, and call tools across desktop, web, Android, code sandboxes, MCP servers, and business APIs. Available today on the H Models API for commercial use.
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New party alert - Sep 22, Paris 🪩 @hcompany_ai is teaming up with @bfl_ai and @modal to throw a casual get together ahead of the @aiDotEngineer conference organised by @MistralAI ! There will be drinks, food, smart folks, and all of this by the Seine!
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Here we go !! 💻🧠
OFFICIALLY LAUNCHED H's computer-use agent API now runs on desktop and web, built for devs and builders. Fully managed, powered by our #1 OSWorld-Verified model.
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