Hacker News: Jaxkr

New comment by Jaxkr in "Show HN: Smart model routing directly in Claude, Codex and Cursor"

Jaxkr — Sat, 27 Jun 2026 05:42:07 +0000

Monthly budget of 100k Opus tokens? So $2.50 worth?

New comment by Jaxkr in "Show HN: Are You in the Weights?"

Jaxkr — Thu, 18 Jun 2026 21:54:34 +0000

This must be a remarkably expensive demo/toy to operate.

New comment by Jaxkr in "Office-open-xml-viewer: Office XML document viewer that renders to HTML Canvas"

Jaxkr — Sun, 07 Jun 2026 20:40:18 +0000

I literally had to solve the "preview Office files in the browser" problem last week. I couldn't find a decent solution, so I ended up making a endpoint that ran the files through headless libreoffice on the server to convert them to PDF.

For PPTX and DOCX, this solution is slightly worse than libreoffice conversion (this does not appear to output highlightable text, while PDF conversion does).

However, the XLSX preview BLEW my mind considering this was AI coded. Really good, even interactive!

New comment by Jaxkr in "I still prefer MCP over skills"

Jaxkr — Fri, 10 Apr 2026 09:33:48 +0000

Common sense. Most users are not running Claude Code or an on-device coding agent.

They're using ChatGPT, Gemini, or Claude on the web.

New comment by Jaxkr in "Professional video editing, right in the browser with WebGPU and WASM"

Jaxkr — Sat, 21 Mar 2026 22:47:46 +0000

Great project. The last time someone did this idea well they got acquired by Microsoft. Clipchamp has since been enshittified, making them ripe for disruption. The wheel continues to turn…

New comment by Jaxkr in "End of an era for me: no more self-hosted git"

Jaxkr — Wed, 11 Feb 2026 03:11:48 +0000

The author of this post could solve their problem with Cloudflare or any of its numerous competitors.

Cloudflare will even do it for free.

New comment by Jaxkr in "Apple Mini Apps Partner Program"

Jaxkr — Sat, 15 Nov 2025 11:51:23 +0000

Roblox pays the full 30%.

New comment by Jaxkr in "Ask HN: Who is hiring? (November 2025)"

Jaxkr — Mon, 03 Nov 2025 21:51:17 +0000

FYI the second link (about Anthropic RLHF) 404's. Here's an archive link: https://web.archive.org/web/20250428152855/https://www.surge...

New comment by Jaxkr in "Uv is the best thing to happen to the Python ecosystem in a decade"

Jaxkr — Thu, 30 Oct 2025 00:41:21 +0000

On performance: 3.13 removed the GIL and added experimental first-party JIT (like PyPy).

In two years I bet we’ll be seeing v8 level performance out of CPython.

New comment by Jaxkr in "Show HN: AI toy I worked on is in stores"

Jaxkr — Mon, 13 Oct 2025 22:12:17 +0000

This is an amazing product. I don't have kids yet but I would buy this for them if I did!

However, since this is Hacker News, I must say I'd probably enjoy building this myself using TTS and LLM APIs...

New comment by Jaxkr in "ETFs now hold more than $3.1T worth of just top US companies"

Jaxkr — Sun, 31 Aug 2025 03:45:56 +0000

FXAIX

New comment by Jaxkr in "Are OpenAI and Anthropic losing money on inference?"

Jaxkr — Fri, 29 Aug 2025 03:31:11 +0000

I think some of the power user demand is fairly inelastic. I’ve seen developers who are allergic to spending money happily drop $200/mo on those new Claude subscriptions.

New comment by Jaxkr in "Claude Sonnet will ship in Xcode"

Jaxkr — Fri, 29 Aug 2025 03:26:15 +0000

The “Cursor for Xcode” startups just got Sherlocked…

New comment by Jaxkr in "OpenAI to buy AI startup from Jony Ive"

Jaxkr — Wed, 21 May 2025 19:41:49 +0000

> In terms of value per minute spent, it’s the same tier of slop as TikTok or Instagram

Insane take. Reddit hosts deep threaded discussions on almost any topic imaginable. In its prime it was the best forum on the internet. There’s a reason people commonly add “reddit” to the end of their search queries.

Unfortunately it feels like the community has gotten much dumber after they banned third party apps and restricted API access. It’s also lost almost all of its Aaron Swartz style hacktivist culture.

Reddit, in its prime, was incredible and beloved by almost everyone I know (most of which are far outside the HN sphere)

New comment by Jaxkr in "How Obama’s BlackBerry got secured (2013)"

Jaxkr — Thu, 08 May 2025 11:03:14 +0000

> This would mean the White House Communications Agency has to carry such a secure base station wherever the president goes.

We used to take security so seriously.

New comment by Jaxkr in "How Obama’s BlackBerry got secured (2013)"

Jaxkr — Thu, 08 May 2025 11:02:15 +0000

And now we have our top defense officials using a fork of Signal which sends copies of messages to a third party.

https://www.404media.co/mike-waltz-accidentally-reveals-obsc... http://archive.today/LyWDy

New comment by Jaxkr in "Claude's system prompt is over 24k tokens with tools"

Jaxkr — Wed, 07 May 2025 04:13:34 +0000

That’s what this is. It’s caching the state of the model after the tokens have been loaded. Reduces latency and cost dramatically. 5m TTL on the cache usually.

New comment by Jaxkr in "Why our waistlines expand in middle age: aging stem cells shift into overdrive"

Jaxkr — Fri, 02 May 2025 16:40:58 +0000

Our metabolism is amazing and complex but CICO is a matter of thermodynamics.

People get burned when measuring the “out” part because our bodies want to hold on to as much energy as possible.

New comment by Jaxkr in "Show HN: A Standalone/GitHub CLI Extension to Preview GitHub Flavored Markdown"

Jaxkr — Sun, 20 Apr 2025 18:51:35 +0000

Markdown was designed to compile to HTML and web browsers are designed to render HTML. So I’d say a browser is the only reasonable choice.

New comment by Jaxkr in "Packing Input Frame Context in Next-Frame Prediction Models for Video Generation"

Jaxkr — Sat, 19 Apr 2025 16:06:32 +0000

Massive open TikTok training set lots of video researchers use