Developer, husband and catfather. Mainly working with AI and high-performance computing.

Sebastian Christiansen retweeted
Video of tensorfold running Qwen3.8-Flash-Next-MLX-oQ8-MTP high on M3 Ultra ~80 t/s! It's a great experience, less errors and better quality. Where possible I suggest to use the highest possible quants!
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I have a little tool I’ve been developing and dogfooding. I’ll release it in the not-so-distant future…
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Sebastian Christiansen retweeted
Google: “[Swift] has matured into a viable systems and cloud language, pairing Rust-like data-race safety with predictable, reference-counted performance.” Announcing their Swift-based cloud SDK for backend services: cloud.google.com/blog/topics…
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Sebastian Christiansen retweeted
Humans beings weren't meant to endure this much two factor authentication.
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Hey Rust are you ready? Swift is coming for you 🫵
Google: “[Swift] has matured into a viable systems and cloud language, pairing Rust-like data-race safety with predictable, reference-counted performance.” Announcing their Swift-based cloud SDK for backend services: cloud.google.com/blog/topics…
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Sebastian Christiansen retweeted
you may ask, why open-source this? first of all, building gadgets is fun. second, we want to unleash builders to explore all sorts of new and crazy ideas. we believe muse presents a special moment to imagine new kinds of gadgets, and we are excited to see what y'all build!
🚨 side project alert 🚨 Announcing Muse Gadgets, an open source ESP32 firmware and Linux sdk so that you can make hardware devices that work with Muse. Grab an API token from gadgets.muse.ai and point your favorite coding agent at the github repo to build your own peripherals for Muse.
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Sebastian Christiansen retweeted
favorite reminder for creatives, by Björk
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Sebastian Christiansen retweeted
Qwen3.8-Flash-Next support added for M1-M6 32GB. Get 🍣 Sushi-2bpw pack, stream from disk, no quality loss. Context ~66000, M1 Max: prefill ~200 tok/s and gen ~18 tok/s! Compile from main or wait for Sushi v1.2 ⭐️ github.com/beamivalice/sushi
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Sebastian Christiansen retweeted
Omarchy now has an official bug bounty program on HackerOne! The Omacom Foundation has funded it with $100,000 for bounties, and we've promoted @mdisec to Omarchy Core as our Head of Security. omarchy.org/news/2026/10/oma…
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Sebastian Christiansen retweeted
Cool eval. Simply ask an LLM “Land or Water?” and give it a latitude and longitude coordinate as text. Ask 16,200 times, plot as image. The models know. From compressing the internet.
Replying to @celestepoasts
results for all claudes
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Sebastian Christiansen retweeted
my cat likes to announce when he’s exercising, in the hopes that we will see and reward him
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Seeing that side by side comparison is wild.
Same Mac. Same model. Same prompt. Two lanes, racing. Left: GLM-5.3-Flash on an M5 Ultra a week ago, 39 tok/s. Right: same machine today on TensorFold 0.6.0, 91 tok/s. The right lane is done before the left is halfway. 2.3× in one week, from a software update. Apache 2.0, tensorfold.dev. github.com/ashhart/TensorFol… Numbers are Frank's (@cryptosibbers ) M5 Ultra runs, both lanes paced at his reported rates with a real GLM reply. Thank you for sharing them.. @ashxhart
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Sebastian Christiansen retweeted
Six months ago I had a hunch. Local AI won't become the norm until it feels instant. Running a model on your own machine should feel like magic, not like tapping your fingers waiting for a reply. The response to TensorFold since has blown me away. Thank you to everyone testing it, sending PRs and sharing feedback. There's a lot more speed to unlock. Right now most of my time goes on reviewing and landing PRs. That matters, and every fix makes TensorFold better, but the biggest gains are in deep performance work I can't get to quickly. If you want to see what TensorFold can really do, backing would let me work on it full time, with the hardware to test faster and dig into performance, and bring it to everyone in local AI. All in the open under Apache-2.0. We have been made aware that TF is being run in real production environments, so we could potentially look into support packages. To back the project, sponsor hardware or talk about support, my DMs are open. Even just sharing this post helps. 🫶🏼
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Sebastian Christiansen retweeted
0.6.1 added a few performance improvements
Concurrency rerun with TensorFold 0.6.1 on the same Spark. 16 at once: 62 → 372 tok/s First token at 16 at once: 117s → 0.3s 128K prompt read: 882 → 1,515 tok/s Same NVFP4 weights and DFlash2 drafter, temp 0, thinking off. 0.6.1 ran with --parallel 16 Answers were byte-identical across 8 prompts, run to run and alone vs 16 at once
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Sebastian Christiansen retweeted
Hate to say it here, but the new Gorgon Halo at it's price today is NOT the value the Strix Halo offered. I configured a M5 Ultra and a Framework AI Max 400 both w/ 2TB storage. Hate to say it, but on raw $/GB the two are a wash; on bandwidth-adjusted $/GB the Mac is ~3x cheaper. System $/GB │Mac $39.06 | FW $38.07 Memory bandwidth | Mac 1.2 TB/s | FW 273 GB/s Bandwidth-adjusted $/GB ($ ÷ GB × TB/s) Mac $32.60 │ FW $140.00 the Mac has 1.33x the memory and 4.4x the bandwidth for only 1.37x the price while the framework looks $2,690 cheaper, you are not actually getting the same level of value for your investment returned to you. And since thunderbolt & usb4.0 are pretty dang fast, you can shave another $500 off the Studio by dropping down to a 1TB storage drive and using external storage if you got it. For local AI.... Apple is starting to look like they want to take NVIDIA and the DGX Spark head on. It's a HELL of a value.
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Sebastian Christiansen retweeted
oh no
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犬の散歩にいくアザラシを描きました。
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