GPT-6.1 Terra vs DeepSeek V4.1 Flash 1017
GPT-6.1 Terra took 5 min 29 s and $0.15 at list price, DeepSeek V4.1 Flash 1017 took 7 min 16 s and $0.068 at list price. DeepSeek V4.1 Flash 1017 took 1.3× as long, and GPT-6.1 Terra cost 2.2× as much.
GPT-6.1 Terra
OpenAI · $5.00/M out · 706 HN pts
DeepSeek V4.1 Flash 1017
DeepSeek · $0.60/M out · 1,693 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, dedicated to repairing vintage synthesizers and keeping them in use.
Old instruments have a way of becoming familiar: the feel of a key, the response of a filter, the particular sound a circuit makes when it’s working as it should. When something goes wrong, we take the time to understand both the fault and the instrument around it. We work carefully, preserving original parts wherever practical and making repairs with the long term in mind.
Our studio brings together a shared interest in electronics, sound and the machines that connect them. Whether a synthesizer has a stubborn key, a noisy output or has been silent for years, we’re interested in finding a way forward.
We work with musicians, collectors and anyone who wants to hear an old instrument come to life again. If you have a synth that needs attention, we’d be glad to hear about it.
Patchbay is a three-person studio in Rotterdam devoted to keeping vintage synthesizers making the sounds they were built to make. We repair, service and restore analog instruments from the late 1960s onward, from familiar Moogs and ARPs to oddities with no service manual. Every synth that comes through the door is treated as a working instrument rather than a museum piece. We trace faults, rebuild power supplies, refresh capacitors, clean keybeds and calibrate oscillators, always with an eye on reliability and the character that made the machine worth saving. We document what we do, explain the options clearly and never replace more than necessary. Whether you need one dead voice brought back or a full restoration, we work carefully, at the bench and in conversation with you. Old synths belong on records and stages, and our job is to keep them there.
Specs and numbers
| GPT-6.1 Terra | DeepSeek V4.1 Flash 1017 | |
|---|---|---|
| Maker | OpenAI | DeepSeek |
| Made in | US | China |
| Released | 26 Oct 2026 | 17 Oct 2026 |
| Price in, per M tokens | $1.00 | $0.15 |
| Price out, per M tokens | $5.00 | $0.60 |
| Context | 1,050,000 tokens | 1,048,576 tokens |
| Weights | closed | open |
| Hacker News points | 706 | 1,693 |
| Time for the six prompts | 5 min 29 s | 7 min 16 s |
| List price of the six prompts | $0.15 | $0.068 |
DeepSeek V4.1 Flash 1017 was cheaper: $0.079 less at list price, and less on each of the 6 prompts. GPT-6.1 Terra was faster: 1 min 48 s less in total, and faster on 4 of the 6 prompts.
In the recording, both Breakout games play.
Rebuild this screen experiment: GPT-6.1 Terra's rebuild matched the screenshot at 95%, DeepSeek V4.1 Flash 1017's 57%. Tea Garden experiment: GPT-6.1 Terra's game passed 5 of 5 checks, DeepSeek V4.1 Flash 1017's 5 of 5.