Opus 5 and GPT-5.6 Sol created impressive results, but their approaches were completely different. These 3 tests reveal which model has the edge for different types of work.. Ai Tools, 🔥 Ai Fire Academy, Ai Automations.
TL;DR
GPT-5.6 Sol won this AI model comparison with two wins across three tests. Opus 5 won the landing page test, while Sol performed better in coding and audience research.
The coding test showed that Sol finished faster and produced the stronger test result. Opus 5 gave a deeper technical explanation, but Sol delivered the better final patch.
In the landing page test, Opus 5 created a more polished layout with fewer visual changes. In the audience research test, Sol produced a clearer report and separated evidence, analysis, and weaker findings more carefully.
Key points
GPT-5.6 Sol won 2 of 3 tests.
Opus 5 gave the stronger landing page result.
Choose Sol for coding and research, and consider Opus 5 for design-focused work.
Table of Contents
Introduction
Opus 5 looks stronger on public coding benchmarks, and that’s a fair claim. It leads GPT-5.6 Sol on 9 of 12 shared benchmarks, including SWE-bench Pro and ARC-AGI-3.
So why does GPT-5.6 Sol win the coding test I use below?
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Test 1: Finding and fixing bugs in a large codebase
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Test 2: Building a complete landing page
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Test 3: Researching a real audience
Let’s see which model gives the best results, which one uses more tokens, and which one needs the most manual editing.
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