GPT-6.1 Terra vs Claude Haiku 5.5
GPT-6.1 Terra took 5 min 29 s and $0.15 at list price, Claude Haiku 5.5 took 4 min 43 s and $0.035 at list price. GPT-6.1 Terra took 1.2× as long and cost 4.2× as much.
GPT-6.1 Terra
OpenAI · $5.00/M out · 706 HN pts
Claude Haiku 5.5
Anthropic · $0.50/M out · 1,071 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, and we spend our days inside vintage synthesizers. We are repair technicians first: we open the cases, replace the leaking capacitors, re-tune the oscillators that have drifted out of pitch, and bring back the filters that went silent decades ago. Our bench is crowded with service manuals, spare chips, and a soldering station that has seen more Moog panels than we can count. We started the studio because we kept meeting musicians whose favourite instruments sat unused in cupboards, not because they were broken beyond saving but because nobody nearby knew how to fix them. We still believe most of these machines can be made to sing again, and we would rather spend an afternoon finding the one bad resistor than see another good synth end up in a skip.
Specs and numbers
| GPT-6.1 Terra | Claude Haiku 5.5 | |
|---|---|---|
| Maker | OpenAI | Anthropic |
| Made in | US | US |
| Released | 26 Oct 2026 | 7 Oct 2026 |
| Price in, per M tokens | $1.00 | $0.10 |
| Price out, per M tokens | $5.00 | $0.50 |
| Context | 1,050,000 tokens | 1,000,000 tokens |
| Weights | closed | closed |
| Hacker News points | 706 | 1,071 |
| Time for the six prompts | 5 min 29 s | 4 min 43 s |
| List price of the six prompts | $0.15 | $0.035 |
Claude Haiku 5.5 was cheaper: $0.11 less at list price, and less on each of the 6 prompts. Claude Haiku 5.5 was faster: 46 s less in total, and faster on 5 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%; Claude Haiku 5.5 was not in it. Tea Garden experiment: GPT-6.1 Terra's game passed 5 of 5 checks; Claude Haiku 5.5 was not in it.