
CEO & Co-founder, @BraidHealth. Rebuilding healthcare from the ground up. Proud to enable innovators and disruptors: Carbon/Walmart/Amazon Health
Mission, San Francisco
Joined July 2009
- Tweets1.8K
- Following969
- Followers1.3K
- Likes4.3K
Kevin Quennesson retweeted
Gemini 4 Carbon is out! I’m also super excited for the launch of `/swarm` in Google Antigravity.
We’re moving past "watching one coding agent think in a terminal" to orchestrating specialized agent teams. Here’s how 👇
What happens when we run that same Left Shoulder MRI through Gemini 4 Argon with 6 million tokens of context?
26 interactive 3D callouts across all 8 MRI sequences, mapping both the tears and every intact structure in the joint:
braid.health/shoulder-argon
Full @BraidHealth clinical breakdown of all 8 MRI sequences, millimeter caliper measurements (5.6 mm paralabral cyst, 7.1 mm intratendinous split), and radiologist accuracy review:
braid.health/www/page/should…
66
When you get a shoulder MRI, you usually receive 130 words of dense medical jargon ("low-grade interstitial partial tear of the infraspinatus") and zero images.
Your images, explained in plain English with interactive 3D MRI callouts:
braid.health/shoulder
Left (1/2): The standard signed radiology report. 896 characters of text, zero slices.
Right (2/2): The @BraidHealth Visual Report. Every finding is translated into plain English and pinned directly to the exact MRI slice:
braid.health/shoulder
35
Why visual grounding matters for clinical accuracy: when every @BraidHealth finding is pinned to an exact 3D slice and bounding box, a reviewing radiologist can audit concordance in seconds.
Full 3-way clinical case study + PDFs:
braid.health/www/page/should…
15
The agentic moment we saw in coding just happened in radiology.
Instead of scanning a file system, an agent can now scan the body in 3D:
1. look (up to 100 16-bit slices/batch)
2. annotate, analyze & verify across priors
braid.health/www/page/agenti…
Medical jargon and plain-text radiology reports become the new "code" that no one wants to read or write by hand.
On a 6-scan Chest CT series (2022-2026), @BraidHealth ran 85 model calls & 8.74M tokens to place 72 verified 3D calipers:
braid.health/www/page/agenti…
2
3
350
When a patient has 28 lung nodules across 6 Chest CTs over 4 years (2022-2026), routine scan-to-scan text reports just say "stable."
We ran Gemini 4 Argon (8.74M tokens, 85 calls, 72 3D calipers) across all 6 scans at once:
braid.health/www/page/longit…
Aligning all 6 CTs with @BraidHealth revealed a 2-phase biological turning point in Benign Metastasizing Leiomyoma:
1. Every tracked nodule peaked in June 2023 (19.5 mm dominant LUL)
2. After July 2023 hysterectomy, every nodule shrank 12.3% to 20.3%:
braid.health/www/page/longit…
1
122
Kevin Quennesson retweeted
Excited to introduce Onyx and announce our $8M seed round led by Dimension to build a virtual immune system!
Onyx has always been a story of connection. The first connection was to my cofounder @amlakhan, a deeply curious technologist who I’ve been fortunate to call a friend for 19 years now. I've always said that working together was a cornerstone of starting Onyx, and it truly has been one of the best decisions I've ever made.
Connection is also at the heart of what Onyx does. We believe AI is key to making biological complexity tractable, ultimately transforming life sciences into an engineering discipline. But that requires the right data. AI performance compounds with context, and richer biological context comes from more connected data.
In biology, such context is often missing: molecular data, clinical history, and change over time are typically captured in isolated fragments. Onyx provides the substrate that connects them, pairing genomics, transcriptomics, proteomics, and metabolomics with rich clinical histories. By studying these layers together in people over time, our data platform traces how real human biology changes in response to infection, inflammation, and treatment. Seeing how these trajectories differ across people brings us closer to understanding what drives disease—and to developing precision medicines that work better for real people.
Yet connecting data is only possible because of the people who have connected with our mission. Nearly a thousand members have already joined our research studies. They are more than research participants: they are difference-makers transforming how we understand some of humanity’s most complex and chronic diseases. I always say that our work is for people, but the truth is that people make our work possible. That connection comes full circle, and at Onyx, people will always come first.
Finally, as we raised our oversubscribed round, we sought more than just business partners. We wanted investors we felt a true connection to—not merely sources of capital, but co-conspirators in creating meaningful change. To that end, we feel incredibly fortunate to have joined forces with @_DimensionCap, @haystackvc, @refactor, @standard_vc, @robotventures, and many more.
Now back to building!
Today we're introducing Onyx, a research collective building a virtual immune system: a model of how real people respond to infection, inflammation, and treatment.
We're launching with an $8M seed round led by Dimension Capital.
onyx.bio/news/introducing-on…
Muse Spark is doing pretty well on medical images (crashlab.in/radle/2/leaderbo…), so we're adding this soon on braid.health/ask-ai
a week after launch, muse is now the #1 app in the App Store!
it’s been SO exciting to see how much y’all have done with muse. we can’t wait to do more together!
1
2
149
Named to TIME and Statista's World's Top HealthTech Companies 2026.
Top two tiers in Diagnostics, one of 15 in the US.
@OpenAI and @AnthropicAI, we couldn't have done it without you.
All the terminal uppercasing just meant we cared.
Braid Health has been named to TIME and Statista’s World’s Top HealthTech Companies 2026 list in the Diagnostics category.
We’re building a clearer path from medical images to answers patients can understand.
See the full list: time.com/article/2026/09/16/…
@googlecloud and @Gemini API: we ❤️ love the direct to GCS 100-image batch limit per tool call, and multimodal responses.
Our long running agentic loops wouldn't exist without it.
We deserve free credits. Send DM please.
2
1
95
The robots, named: @OpenAI @AnthropicAI @Google
Thank you for the leverage. Small team, absurd amount of shipping.
Full speech, and the humans:
linkedin.com/posts/qevni_wor…
teapawt.org/BraidHealth/status/210…
Braid Health has been named to TIME and Statista’s World’s Top HealthTech Companies 2026 list in the Diagnostics category.
We’re building a clearer path from medical images to answers patients can understand.
See the full list: time.com/article/2026/09/16/…
Kevin Quennesson retweeted
All of these patterns as an example are just matters of “org code”. The IDE helps you build, run, manage them. You can’t fork classical orgs (eg Microsoft) but you’ll be able to fork agentic orgs.




















