HNHacker News
TopNewBestAskShowJobs

haykmartiros

473 karma · joined April 17, 2018

https://haykmartiros.com

Skydio, SymForce, Riffusion

submissionscomments
haykmartiros··on Ask HN: Who is hiring? (April 2025)
Riffusion (gen music) | san francisco | in person | 200-300 + equity

training frontier music generation models and building the most powerful and fun music creation product in the world

looking for a world-class infra person

{ hayk at riffusion dot com }

haykmartiros··on Ask HN: Who is hiring? (February 2025)
Riffusion | Generative Music | San Francisco (in person) | $180-300k + equity

Riffusion is a 10 person team making a music platform where you can create any music you imagine. We are aiming for the greatest song crafting, editing, exploring, and listening experience ever made. We train frontier diffusion transformer models that make incredible full length songs, and have built a powerful product around it. I'm one of the cofounders.

We just launched into public beta -- check it out at https://www.riffusion.com/

We are looking for elite team members

* ML research scientists in large scale generative modeling

* AI infra engineers who have deployed and trained at scale

* Product builders who have worked on world class apps

Reach out at { hayk at riffusion dot com}

haykmartiros··on Ask HN: Who is hiring? (November 2024)
Riffusion (AI Music) | San Francisco (in person) | $200-300k+ equity

We're building the best music creation and listening experiences ever made, by making music interactive in new ways. We're a small team of world class engineers, researchers, and musicians working out of Hayes Valley. It's hard to believe we get paid for what we do.

Looking for:

* ML Research scientists and engineers who are deep in large-scale generative models and love music

* Devops expert deep on multi-node training and infiniband (will pay well for a short term contract)

Message me: { careers @ riffusion.com }

haykmartiros··on Show HN: Music Generation - 100x Speed Demo
Longer story: The web demo is a way to earn your curiosity. The Riffusion crew is released our free iOS app today, and that's the real juice. We’re thinking constantly about how to create a new instrument with gen music, and for us this is wildly fun experience.

At the core, we’ve been training music foundation models that are high quality, diverse, controllable, and an order of magnitude faster than anything done before. This required a ton of deep investment across the whole stack from compact representations to architectures to deployment infra. The result is fast enough to enable totally new workflows for this stuff.

The primary input is to capture/upload a photo or video with optional personalization, then the app will generate original lyrics and music based on the context. The next time you see your dog or kid do something funny, you can turn that into a vibe in seconds. We’ve been having a blast creating music in moments that we never would have before.

The most remarkable part is the editing, as sampled in the web demo. In the edit view, you can go deep adding multiple prompts on a timeline and controlling their strengths and interactions. You can mix genres into something totally new or make transitions like going from an operatic aria to death metal. The near-real time editing flow is something that to me feels totally new, like trying GarageBand when it first came out.

There’s a ton more we’re excited to launch in the coming weeks as we work to create more musicians in the world. Excited to hear what you all create!

haykmartiros··on Show HN: Music Generation - 100x Speed Demo
One of the authors here. Short story is, check out our web demo (on desktop Chrome) for real-time music generation and editing! Music is made on the fly by our diffusion models as you control the transition between two random genres. Every time you make a change, you're creating 30s of 44kHz stereo in 0.3s on a GPU via diffusion. Genre transitions are one of the most fun use cases we've found.
haykmartiros··on Ask HN: Who is hiring? (July 2024)
Riffusion | Generative Music | San Francisco, CA

Looking for world class ML research engineers and scientists to join our core team building the future of music. If you love creativity, large scale diffusion models, fast infrastructure, and early startup energy, our team may be a fit. We're building something new to inspire hundreds of millions of people. Competitive comp, in-person culture.

Contact: hayk @ riffusion dot com

haykmartiros··on Ask HN: Who is hiring? (February 2024)
Skydio - Autonomy Infrastructure | Bay Area - San Mateo | Python & C++

Skydio is the leading US drone company and the world leader in aerial autonomy. Our mission is to make the world more productive, creative, and safe with autonomous flight. Today tens of thousands of our robots are flown at scale to inspect critical infrastructure and provide life-saving intelligence, and we have one of the best robotics teams on the planet in support of these goals.

Our X10 drone features NVIDIA Orin and Qualcomm 865 processors with 85 TOPS of compute capability, along with onboard 360 trinocular camera coverage. We develop real-time 3D reconstruction and semantic AI so that our robot can understand the world around it and make intelligent decisions.

We’re looking for infrastructure engineers and a director for our autonomy team who love making code for flying robots and for making our engineering team more productive. Experience with Python and C++, performance optimization, systems infrastructure, first-principles thinking, 3D visualization, communication and logging. full-stack web apps, and build systems all welcome. Very strong software engineering and computer science fundamentals required.

I lead the autonomy team and you can reach me at { hayk at skydio dot com }.

haykmartiros··on FAA orders grounding of more than 170 Boeing 737 Max 9s
I
haykmartiros··on Ask HN: Who is hiring? (December 2023)
Skydio - Autonomy Infrastructure | Bay Area - San Mateo | Python & C++

Skydio is the leading US drone company and the world leader in aerial autonomy. Our mission is to make the world more productive, creative, and safe with autonomous flight. Today tens of thousands of our robots are flown at scale to inspect critical infrastructure and provide life-saving intelligence, and we have one of the best robotics teams on the planet in support of these goals.

Our X10 drone features NVIDIA Orin and Qualcomm 865 processors with 85 TOPS of compute capability, along with onboard 360 trinocular camera coverage. We develop real-time 3D reconstruction and semantic AI so that our robot can understand the world around it and make intelligent decisions.

We’re looking for infrastructure engineers for our autonomy team who love making code for flying robots and for making our engineering team more productive. Experience with Python and C++, performance optimization, systems infrastructure, first-principles thinking, 3D visualization, communication and logging. full-stack web apps, and build systems all welcome.

I lead the autonomy team and you can reach me at { hayk at skydio dot com }.

haykmartiros··on Show HN: Riffusion with Lyrics
as of a few minutes ago, you can mark individual riffs as public or unlisted, in addition to the global setting!
haykmartiros··on Show HN: Riffusion with Lyrics
Remix is using latent space interpolation under the hood to generate three variations of a given riff with (light, medium and heavy) modifications
haykmartiros··on Humans are biased. Generative AI is even worse
This is flat out not true. Generative AI is meant to approximate the distribution. It’s biased from the data, yes, but if it was just the median it would only spit out one face, one gender, etc.
haykmartiros··on Zero-1-to-3: Zero-shot One Image to 3D Object
Ground truth
haykmartiros··on Ask HN: Who is hiring? (March 2023)
Skydio | AI Engineer | SF preferred, remote possible.

Skydio is the leading U.S. drone maker and world leader in autonomous flight. We create the world’s most intelligent flying machines to make the world more productive, creative, and safe with autonomous drones. Today our products are used for everything from capturing amazing video for consumers, to inspecting infrastructure, bridges, to enabling situational awareness for first responders in critical situations. We just raised a Series E at a $2.2B valuation.

We're looking for deep learning engineers to work on image-language understanding, open vocabulary detection, few-shot learning, and obstacle avoidance.

I lead the autonomy team and you can reach out directly to { hayk at skydio dot com }.

Read more at --> http://bit.ly/skydio-autonomy

haykmartiros··on Riffusion Release v0.3 – Stable Diffusion for audio
We were blown away by the community interest in our Riffusion experiment (see https://www.riffusion.com/about).

We're now catching up and did a full rewrite to go from a hack to a quality software project. It also includes an extensible CLI tool and an interactive streamlit app for common tasks, MPS backend support, stereo spectrogram encoding, a test suite run by CI, and more. These tools provide a solid foundation to build upon.

haykmartiros··on Argentina Wins the World Cup
Absolutely legendary game.
haykmartiros··on Riffusion – Stable Diffusion fine-tuned to generate music
That makes a lot of sense, I would be keen to see attempts at that.
haykmartiros··on Riffusion – Stable Diffusion fine-tuned to generate music
Love this idea. If I had more time I wanted to make a spaceship game where you are flying around the latent space, and model interrogation is used to provide labels to landmarks as you move around.
haykmartiros··on Riffusion – Stable Diffusion fine-tuned to generate music
To be honest, we're not sure how much value image pre training brings. We have not tried to train from scratch, but it would be interesting.

One thing that's very important though is the language pre-training. The model is able to do some amazing stuff with terms that do not appear in our data set at all. It does this by associating with related words that do appear in the dataset.

haykmartiros··on Riffusion – Stable Diffusion fine-tuned to generate music
LOL. Yes we had to upgrade our Vercel tier: https://twitter.com/sethforsgren/status/1603425188401467392
haykmartiros··on Riffusion – Stable Diffusion fine-tuned to generate music
We took a look at encoding phase, but it is very chaotic and looks like Gaussian noise. The lack of spatial patterns is very hard for the model to generate. I think there are tons of promising avenues to improve quality though.
haykmartiros··on Riffusion – Stable Diffusion fine-tuned to generate music
/u/threevox on reddit made a colab for playing with the checkpoint:

https://colab.research.google.com/drive/1FhH3HlN8Ps_Pr9OR6Qc...

haykmartiros··on Riffusion – Stable Diffusion fine-tuned to generate music
Yes! Although to have real time playback with our defaults you need to be able to generate 40 steps at 512x512 in under 5 seconds.
haykmartiros··on Riffusion – Stable Diffusion fine-tuned to generate music
Yes from https://huggingface.co/runwayml/stable-diffusion-v1-5. Our checkpoint works with automatic1111, and if you'd like to make an extension to decode to audio, it should be pretty straightforward: https://github.com/hmartiro/riffusion-inference/blob/main/ri...
haykmartiros··on Riffusion – Stable Diffusion fine-tuned to generate music
Other author here! This got a posted a little earlier than we intended so we didn't have our GPUs scaled up yet. Please hang on and try throughout the day!

Meanwhile, please read our about page http://riffusion.com/about

It’s all open source and the code lives at https://github.com/hmartiro/riffusion-app --> if you have a GPU you can run it yourself

This has been our hobby project for the past few months. Seeing the incredible results of stable diffusion, we were curious if we could fine tune the model to output spectrograms and then convert to audio clips. The answer to that was a resounding yes, and we became addicted to generating music from text prompts. There are existing works for generating audio or MIDI from text, but none as simple or general as fine tuning the image-based model. Taking it a step further, we made an interactive experience for generating looping audio from text prompts in real time. To do this we built a web app where you type in prompts like a jukebox, and audio clips are generated on the fly. To make the audio loop and transition smoothly, we implemented a pipeline that does img2img conditioning combined with latent space interpolation.

haykmartiros··on Ask HN: Who is hiring? (October 2022)
Skydio | San Mateo, CA | Remote Possible | Python / C++ / Robotics

Skydio is the leading U.S. drone manufacturer and world leader in autonomous flight. We leverage breakthrough AI to create the world’s most intelligent flying machines to make the world more productive, creative, and safe with autonomous drones. Today our products are used for everything from capturing amazing video for consumers, to inspecting infrastructure, bridges, to enabling situational awareness for first responders in critical situations. We’ve raised over $340M and are in a strong cash position to achieve our vision.

We are hiring across multiple teams here at Skydio.

Autonomy- If you’re interested in being a core member of a world-class engineering and research team that is defining the future of a major emerging industry, dive in → http://autonomy.skyd.io/

Software Engineering- Our Software team is working on our cloud platform that allows our customers to manage their fleet of drones from anywhere as well as schedule fully autonomous missions. https://bit.ly/skydio-software-eng

Embedded Software - Our Embedded Software team acts as the brain stem of our autonomous drones, bridging the gap between the algorithms and the sensors/mechanical hardware. http://embedded.skyd.io/

Wireless - Our Wireless team builds a robust wireless network solution, extending the range of our drones and providing high-speed and secured communication.

Open roles: https://skydio.com/careers

I lead the autonomy team and you can reach out directly to { hayk at skydio dot com }.

haykmartiros··on Ask HN: Who is hiring? (September 2022)
Skydio | San Mateo, CA | Remote Possible | Robotics / C++ / Python

Skydio is the leading U.S. drone manufacturer and world leader in autonomous flight. We leverage breakthrough AI to create the world’s most intelligent flying machines to make the world more productive, creative, and safe with autonomous drones. Today our products are used for everything from capturing amazing video for consumers, to inspecting infrastructure, bridges, to enabling situational awareness for first responders in critical situations. We’ve raised over $340M and are in a strong cash position to achieve our vision.

If you’re interested in being a core member of a world-class engineering and research team that is defining the future of a major emerging industry, dive in → http://bit.ly/skydio-autonomy

We’re looking for strong software engineers to join our autonomy infrastructure team. Please contact us if you have experience and interest in some combination of internal tool infrastructure, devops, data analytics, low-level performance optimization, and 3D visualization.

Open roles: https://skydio.com/careers

I lead the autonomy team and you can reach out directly to { hayk at skydio dot com }.

haykmartiros··on Ask HN: Who is hiring? (August 2022)
Skydio Autonomy | San Mateo, CA | Remote Possible | Robotics / C++ / Python

Skydio is the leading U.S. drone manufacturer and world leader in autonomous flight. We leverage breakthrough AI to create the world’s most intelligent flying machines to make the world more productive, creative, and safe with autonomous drones. Today our products are used for everything from capturing amazing video for consumers, to inspecting infrastructure, bridges, to enabling situational awareness for first responders in critical situations. We’ve raised over $340M and are in a strong cash position to achieve our vision.

We’re looking for strong software engineers to join our autonomy infrastructure team. Please contact us if you have experience and interest in some combination of full stack, internal tool infrastructure, devops, data analytics, low-level performance optimization, and 3D visualization.

If you’re interested in being a core member of a world-class engineering and research team that is defining the future of a major emerging industry, dive in → http://bit.ly/skydio-autonomy

I lead the autonomy team and you can reach out directly to { hayk at skydio dot com }.

haykmartiros··on Show HN: SymForce – Fast symbolic computation, code generation, and optimization
The paper talks a lot about this, and compares directly in the second and third experiments (code included). Overall we made SymForce largely to improve on autodiff workflows like in Ceres. The combination of symbolic code in Python, automatic computation of tangent space Jacobians, and code generation can simultaneously make it much faster to iterate, much faster at runtime (there is no runtime chain rule as with autodiff libraries), and less code to maintain. We've seen this very directly in production on our drones.
haykmartiros··on Show HN: SymForce – Fast symbolic computation, code generation, and optimization
Thank you! At my company we've used GTSAM extensively in production (and the creator of GTSAM was our chief scientist). Much of the math and APIs of SymForce were inspired by GTSAM. Ceres less so but we had someone who has used Ceres professionally implement the experiment in the paper.

The main comparison is that in SymForce one writes symbolic expressions in Python, and generates runtime code. In GTSAM and Ceres you write C++ code. This is really nice for exploration and code maintainability. SymForce also has a powerful system of automatically competing tangent space Jacobians that is more elegant and powerful than what the alternatives offer. Finally, SymForce has the benefit of a fresh implementation using the other libraries as a reference, and I think we were able to get better performance by greatly improving memory access patterns and designing functional APIs with solid abstractions (in the C++ optimization library). You can see this with the benchmarks described in detail in the paper.

Page 1 of 2Next →