• Updated 31 Oct, 14:35 UTC
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GPT-6.1 Terra Pro vs DeepSeek V4.1 Flash 1017

6 prompts both ran·Specs and numbers·Change models

GPT-6.1 Terra Pro took 6 min 58 s and $0.39 at list price, DeepSeek V4.1 Flash 1017 took 7 min 16 s and $0.068 at list price. Both took about as long, and GPT-6.1 Terra Pro cost 5.7× as much.

GPT-6.1 Terra Pro

OpenAI · $5.00/M out

DeepSeek V4.1 Flash 1017

DeepSeek · $0.60/M out · 1,693 HN pts

Pelican

Generate an SVG of a pelican riding a bicycle

GPT-6.1 Terra Pro's SVG for the "Pelican riding a bicycle" prompt

GPT-6.1 Terra Pro

41 s$0.0375.9k tokensAPI
DeepSeek V4.1 Flash 1017's SVG for the "Pelican riding a bicycle" prompt

DeepSeek V4.1 Flash 1017

48 s$0.00711k tokensAPI

Watch

Draw a mechanical wristwatch that shows the current local time, with a sweeping seconds hand and a date window. Make it look expensive.

Still of GPT-6.1 Terra Pro's page for the "Wristwatch that shows the current time" prompt

GPT-6.1 Terra Pro

78 s$0.06911k tokensAPI
Still of DeepSeek V4.1 Flash 1017's page for the "Wristwatch that shows the current time" prompt

DeepSeek V4.1 Flash 1017

2 min 20 s$0.01017k tokensAPI

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.

Still of GPT-6.1 Terra Pro's page for the "Landing page for a cargo bike workshop" prompt

GPT-6.1 Terra Pro

2 min 27 s$0.1424k tokensAPI
Still of DeepSeek V4.1 Flash 1017's page for the "Landing page for a cargo bike workshop" prompt

DeepSeek V4.1 Flash 1017

1 min 36 s$0.02746k tokensAPI

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.

Still of GPT-6.1 Terra Pro's page for the "Playable Breakout" prompt

GPT-6.1 Terra Pro

1 min 42 s$0.09916k tokensAPI
Still of DeepSeek V4.1 Flash 1017's page for the "Playable Breakout" prompt

DeepSeek V4.1 Flash 1017

69 s$0.01525k tokensAPI

Design a logo for Night Heron, an independent bookshop that only opens after dark.

GPT-6.1 Terra Pro's SVG for the "Bookshop logo" prompt

GPT-6.1 Terra Pro

42 s$0.0314.9k tokensAPI
DeepSeek V4.1 Flash 1017's SVG for the "Bookshop logo" prompt

DeepSeek V4.1 Flash 1017

76 s$0.00813k tokensAPI

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.

GPT-6.1 Terra Pro

8 s$0.006827 tokensAPI

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.

DeepSeek V4.1 Flash 1017

7 s<$0.001975 tokensAPI

Specs and numbers

GPT-6.1 Terra ProDeepSeek V4.1 Flash 1017
MakerOpenAIDeepSeek
Made inUSChina
Released26 Oct 202617 Oct 2026
Price in, per M tokens$1.00$0.15
Price out, per M tokens$5.00$0.60
Context1,050,000 tokens1,048,576 tokens
Weightsclosedopen
Hacker News points—1,693
Time for the six prompts6 min 58 s7 min 16 s
List price of the six prompts$0.39$0.068

DeepSeek V4.1 Flash 1017 was cheaper: $0.32 less at list price, and less on each of the 6 prompts. Both took about as long in total, and each was faster on 3 of the 6 prompts.

In the recording, both Breakout games play.

Rebuild this screen experiment: DeepSeek V4.1 Flash 1017's rebuild matched the screenshot at 57%; GPT-6.1 Terra Pro was not in it. Tea Garden experiment: DeepSeek V4.1 Flash 1017's game passed 5 of 5 checks; GPT-6.1 Terra Pro was not in it.

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