I Tested Opus 5.5 vs Sonnet 5.5

The speaker conducted a series of tests comparing Claude Opus 5.5 and Sonnet 3.5 to determine if Opus's 2x higher cost justifies a proportionally better performance. In the first task, creating a high-converting landing page for Perk Form, Sonnet completed the work in 28 minutes while Opus took 52 minutes at double the cost. The speaker concluded that Opus's output was not proportionally better, suggesting the price premium wasn't justified for this task. In the second test, when given a vague request to create a 90-day action plan with research to gain 1,000 subscribers, the results diverged significantly. Sonnet's output was described as not very useful, while Opus provided a specific, detailed description with a concrete task list, making Opus the clear winner for this open-ended, creative challenge. For the third task, analyzing a YouTube video to create a resource guide, both models produced very similar results. Sonnet had significant advantages here: it was twice as fast and cost $1.40 less. The speaker awarded this round to Sonnet. The key finding emerged that task specificity determines which model provides better value: when users know exactly what they want, Sonnet delivers efficiently and cheaply; when goals are vague and require creative problem-solving, Opus's superior reasoning capabilities justify the higher cost.