GPT-6.1 Terra Pro vs Xing 4.0
GPT-6.1 Terra Pro took 6 min 16 s and $0.36 at list price, Xing 4.0 took 25 min 32 s and was free at list price. Xing 4.0 took 4.1× as long.
GPT-6.1 Terra Pro
OpenAI · $5.00/M out
Xing 4.0
XingChen · free route
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.
Blank first frame. Press Run.
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.
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. We work on the instruments that have shaped decades of music, from well-loved studio staples to curious machines that have spent years in storage.
Old synthesizers develop problems in their own ways. A key stops responding, a filter drifts, a power supply gives out. We take the time to trace the fault, understand the instrument and make a repair that respects how it was built. Wherever possible, we preserve original components; when a part needs replacing, we choose with care.
We know these instruments are more than collections of circuits. They carry sounds, habits and memories, and each one has a story before it reaches our bench. Whether you rely on yours every day or are hoping to hear it again after a long silence, our aim is to help you get back to making music.
Patchbay is a compact, three-person workshop rooted in the dynamic streets of Rotterdam, born from a shared reverence for analog sound. Our team shares an unwavering dedication to vintage synthesizers, viewing each oscillator, filter, and routing cable as a vital piece of sonic history waiting to be restored. Whether diagnosing a failing voltage regulator or carefully retrofitting obsolete components, we take immense pride in bringing classic instruments back to their full potential. In our studio, repairing isn't just a technical service—it is a shared passion among friends who believe the past deserves to keep playing. We meticulously diagnose and revive legacy synths, ensuring the iconic sounds of yesterday continue shaping today’s electronic music. Bring us your dented, broken machines, and let us help you reconnect them with the rich, unmistakable sounds they were always meant to make. Every patch, every knob, every fleeting tone depends on the work we do here.
Specs and numbers
| GPT-6.1 Terra Pro | Xing 4.0 | |
|---|---|---|
| Maker | OpenAI | XingChen |
| Made in | US | China |
| Released | 26 Oct 2026 | 16 Oct 2026 |
| Price in, per M tokens | $1.00 | free route (list $0/M) |
| Price out, per M tokens | $5.00 | free route (list $0/M) |
| Context | 1,050,000 tokens | 262,144 tokens |
| Weights | closed | open |
| Hacker News points | — | — |
| Time for the five prompts | 6 min 16 s | 25 min 32 s |
| List price of the five prompts | $0.36 | free |
Xing 4.0 was free at list price; GPT-6.1 Terra Pro cost $0.36. GPT-6.1 Terra Pro was faster: 19 min 16 s less in total, and faster on each of the 5 prompts.
In the recording, both Breakout games play. Xing 4.0's landing page showed a blank first frame when the still was taken. Xing 4.0 has no logo: doesn’t draw (an SVG file without the SVG namespace, which browsers draw as an empty box).