Matt Holden
@holdenmatt
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blogging and building @ https://t.co/zujFkE4hmE ex @dropbox, @google, 2x founder
Boulder, CO
Joined June 2009
Episode 2 of Dangerously Skip Permissions, covering: * @holdenmatt shares insights from OpenAI Dev Day * what's working and what isn't in our parallel workflows * model talk: gpt-5 vs. sonnet 4.5 https://t.co/gP46pW2r34
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One pattern I'm enjoying is always having 2 coding agents in parallel terminal tabs - one for coding and one for researching a problem before we code. Occasionally, I can manage 2-3 coding agents in parallel (usually in totally disjoint parts of a monorepo) but it's not easy to
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Reflecting on the last few years (ChatGPT was < 3y ago btw), I’ve learned a lot at oai dev days and AI Eng world’s fairs The content is good but the real value is in the hallway/afterparty conversations with builders pushing the envelope of what’s possible
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Always fun catching up with Gabor!
My annual catch up with fellow ex Google PM @holdenmatt at Dev Day. Matt is based in Boulder where he is building tools to help combine AI + design.
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Excited for my 3rd @OpenAI Dev Day today 2y ago, multimodal was a big theme: vision, image gen, text-to-speech. Also Custom GPTs. Last year, the big idea was reasoning (o1-preview was only a few weeks old). And the Realtime API brought more native/natural voice to devs. What
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oof, blocked for a whole week I guess I switch to API, then set a reminder to switch back in a week? I wish I could just pay usage-based overages without switching "plans"
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Pour one out 🍺 for 3.5 Sonnet getting retired It was easily my favorite coding model from last June when it came out until recently with Sonnet 4 / gpt-5 I never liked 3.6/3.7 and would stubbornly switch back to 3.5 every time I used Claude. 3.5 always had good vibes...
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My mom also found this very geeky old photo of me that I just had to include I can't quite tell what's onscreen, but it looks like maybe I got gw-basic to print a string in a loop I think maybe 3rd or 4th grade. I still think for loops are cool
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Fun talk last night at the AI Builders demos at Colorado Startup Week. I talked about Markdown coding, blather coding, and the 300-year evolution of punch cards from the Jacquard loom to Babbage to the 1890 Census and IBM. We're still moving up the ladder today
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There's a related thing here we might call "blather coding" When I'm in the planning phase for a new feature or project, I'll grab a room and just blather long unstructured braindumps using wispr flow (much higher bitrate of context transfer than typing). Don't stop (ums,
There's a new kind of coding I call "Markdown coding" I'm now spending more time writing Markdown artifacts than actual code -- READMEs, specs, test plans, even unit tests I'm seeing similar themes when I talk to other builders, so I thought it should have a name:
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Bring back the “hype ratio” = (capital raised) / ARR (lower is better)
The moment we started referring to companies who’ve raised at a billion dollar valuation as “billion dollar companies” we helped to shift the focus of startup founders from their customers to their investors. I prefer to call companies with a billion dollars in revenue “billion
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gonna need some eval-evals to know which of these evals are worth evaling
im not going to write a blog because i dont get what people are even arguing about do people really think you need do not need ANY evals? do people really think that evals are ALL you need? side note there are like 5 diff forms of evals which makes it even more confusing
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Fun conversation with James about Markdown coding How can we vibe code with both speed and a high quality bar? We chat about this often, but decided it'd be fun to try having conversations in public about how we're building these days Thanks @jamesdillard for making it happen!
For the last several months @holdenmatt and I have been having regular 1:1 conversations where we trade notes about coding with AI Our goal isn't to sell anything, instead we want to have high signal conversations about crafting great products with LLMs.
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There's a new kind of coding I call "Markdown coding" I'm now spending more time writing Markdown artifacts than actual code -- READMEs, specs, test plans, even unit tests I'm seeing similar themes when I talk to other builders, so I thought it should have a name:
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