Kimi K3.1 Pro vs DeepSeek V4.1 Flash
Kimi K3.1 Pro took 32 min 17 s and $1.27 at list price, DeepSeek V4.1 Flash took 9 min 16 s and $0.063 at list price. Kimi K3.1 Pro took 3.5× as long and cost 20× as much.
Kimi K3.1 Pro
Moonshot AI · $10.00/M out · 1,168 HN pts
DeepSeek V4.1 Flash
DeepSeek · $0.50/M out · 1,482 HN pts
Pelican
Generate an SVG of a pelican riding a bicycle
Watch
Draw a mechanical wristwatch that shows the current local time, with a sweeping seconds hand and a date window. Make it look expensive.
Landing
Build the landing page for Lumen Cycles, a Copenhagen workshop that builds custom cargo bikes to order. Make it look like a real brand you would trust with 4,000 euros.
Breakout
Make a Breakout game I can play right now with the keyboard or the mouse. Give it several levels, a score and some juice.
Logo
Design a logo for Night Heron, an independent bookshop that only opens after dark.
About
Write the opening of the About us page for Patchbay, a three-person studio in Rotterdam that repairs vintage synthesizers. About 150 words.
Patchbay is a three-person studio in Rotterdam devoted to keeping vintage synthesizers alive, playable, and full of character. We work on instruments that have spent decades in studios, bedrooms, and tour cases, and we believe each one deserves more than a quick fix. From drifting oscillators and noisy sliders to tired keybeds and mysterious faults, we take the time to listen, diagnose, and repair with care.
Our approach combines patient troubleshooting, period-correct components where possible, and a deep respect for the original sound. We do not believe in erasing an instrument’s history; we preserve the quirks that make it worth loving. Whether your synthesizer needs a full overhaul or a little help getting back on stage, you will always know who is working on it and why. Patchbay exists for the joy of switching on an old machine and hearing it come back to life.
Patchbay is a three-person studio in Rotterdam dedicated to the care, repair, and resurrection of vintage synthesizers. We started in a small workshop near the Maas, surrounded by oscillators, patch cables, and service manuals, because these instruments deserve more than dusty shelves and hasty fixes. Between us, we have decades of experience in electronics, sound design, and restoration, but we approach every machine with the same curiosity: listen first, trace the signal, understand the history, then bring it back to life. Whether it's a crackly filter, a dead voice card, a drifting oscillator, or a power supply that needs rebuilding, we work carefully, honestly, and with respect for original character. We also advise on maintenance, calibrate tuning and envelopes, and source hard-to-find parts when possible. At Patchbay, repair isn't just about making sound again. It's about keeping these instruments making music for decades to come.
Specs and numbers
| Kimi K3.1 Pro | DeepSeek V4.1 Flash | |
|---|---|---|
| Maker | Moonshot AI | DeepSeek |
| Made in | China | China |
| Released | 23 Oct 2026 | 10 Sep 2026 |
| Price in, per M tokens | $2.00 | $0.045 |
| Price out, per M tokens | $10.00 | $0.50 |
| Context | 1,048,576 tokens | 1,048,576 tokens |
| Weights | closed | open |
| Hacker News points | 1,168 | 1,482 |
| Time for the six prompts | 32 min 17 s | 9 min 16 s |
| List price of the six prompts | $1.27 | $0.063 |
DeepSeek V4.1 Flash was cheaper: $1.20 less at list price, and less on each of the 6 prompts. DeepSeek V4.1 Flash was faster: 23 min 1 s less in total, and faster on each of the 6 prompts.
In the recording, both Breakout games play.
Rebuild this screen experiment: Kimi K3.1 Pro's rebuild matched the screenshot at 87%; DeepSeek V4.1 Flash was not in it. Tea Garden experiment: Kimi K3.1 Pro's game passed 5 of 5 checks; DeepSeek V4.1 Flash was not in it.