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Matt Henderson Profile
Matt Henderson

@matthen2

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maths, visualisations, conversational AI. VP Research @polyaivoice prev: @RekaAILabs, @Apple AI/ML, @GoogleAI, PhD @Cambridge_Eng

Edinburgh, UK
Joined February 2010
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@matthen2
Matt Henderson
1 year
a thread with some of my top animations 📍🧵.
@matthen2
Matt Henderson
3 years
give each pixel a random Pokemon type, and then battle pixels against their neighbors, updating each pixel with the winning type (using the Pokemon type chart). we quickly see areas of fire > water > grass > fire, electric sweeping over, ground frontiers taking over etc etc
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@matthen2
Matt Henderson
5 days
nice library for defining multi-step RL environments-.
@googrish
Girish
5 days
To push the open source frontier for RL + LLMs, we need scalable, modular environments with real-world complexity, beyond math benchmarks. Today, we’re releasing *benchmax*. An open-source framework to build, run, & scale useful RL envs for LLM fine-tuning, with integrations to
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@matthen2
Matt Henderson
12 days
RT @RekaAILabs: 🎉 Big news! We've raised $110M from new and existing investors, including @nvidia & @Snowflake. This funding reinforces our….
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reka.ai
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@matthen2
Matt Henderson
20 days
yikes.
@AnthropicAI
Anthropic
20 days
We're announcing a $200M ceiling contract with the U.S. Department of Defense. Through hands-on prototyping and direct collaboration across the Department, we will help enhance U.S. national security and responsible AI deployment.
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@matthen2
Matt Henderson
25 days
looks cool.
@RekaAILabs
Reka
25 days
🚀 Meet Reka Research––agentic AI that 🤔 thinks → 🔎 searches → ✏️ cites across the open web and private docs to answer your questions. 🥇 State-of-the-art performance, available now via our API and Playground!
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@matthen2
Matt Henderson
26 days
@vllm_project it's something to do with prefix caching. .
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@matthen2
Matt Henderson
26 days
weirdest @vllm_project bug-.model accuracy is fine with 10 or fewer parallel request, and 16 or more- but degrades badly with 11 to 15. ??.
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@matthen2
Matt Henderson
1 month
@Eliasfiz Did you observe this too @HubertSiuzdak ?.
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@matthen2
Matt Henderson
1 month
is it something you are aware of @Eliasfiz ?.
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@matthen2
Matt Henderson
1 month
has anyone else noticed the SNAC audio codec used by Orpheus TTS struggles with some high pitched voice sounds? Here it sounds like the voice is cracking, and the formants are messy. I can hear it in a lot of the demos
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@matthen2
Matt Henderson
1 month
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@matthen2
Matt Henderson
1 month
the original animation in @standupmaths' video.
@matthen2
Matt Henderson
5 years
construction of a Julia set through repeated twists, reflections, and shifts. The twists correspond to the complex square root.
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@matthen2
Matt Henderson
1 month
Mandelbrot set appearing from a grid of Julia sets:.
@matthen2
Matt Henderson
5 years
the mandelbrot set as a map of all Julia sets - version 2
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@matthen2
Matt Henderson
1 month
drawing it with a pen plotter.
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@matthen2
Matt Henderson
1 month
creating a line-art Julia set from repeated square-rooting and translating:.
@matthen2
Matt Henderson
3 years
a julia set fractal can be created with repeated twistings and translations of a starting image. The twistings double the detail in the picture, and correspond to complex square-roots
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@matthen2
Matt Henderson
1 month
a ring built from the Julia sets found around the main cardioid of the Mandelbrot set.
@matthen2
Matt Henderson
5 years
a ring built from the Julia sets that lie along the main cardioid of the Mandelbrot set - version 2
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@matthen2
Matt Henderson
1 month
cool! I got a shoutout on @standupmaths' latest video on Julia sets. sharing some of my other Julia set stuff in the thread đź§µ
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@matthen2
Matt Henderson
2 months
gcd(x, y) == y
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@matthen2
Matt Henderson
2 months
gcd(x, y) == 1
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@matthen2
Matt Henderson
2 months
gcd(x,y)
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@matthen2
Matt Henderson
2 months
very cool application of RL tuning-.fun to see the reward hacking and how it was solved.
@googrish
Girish
2 months
1/ Can codebase-specific RL push the frontier for code LLMs?. At @cgftlabs, we helped a client RL-tune Qwen-2.5-7B on their internal codebase for unit test creation, with coverage-guided GRPO. The result? It beats o4-mini & o3. Here’s how it works (link to full blog in bio) 🧵
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