When it comes to comparing short and long-form performances on different platforms, there are a few key factors to consider:

1) Content Format: Instagram, for example, is tailored towards short, visually engaging content. Its recent focus on Reels highlights this. By comparison, YouTube is more geared for longer, detailed content, providing more depth.

2) Audience Engagement: Generally, shorter content leads to higher immediate engagement rates, as it requires less time investment from viewers. However, long-form content can lead to deeper connections and better audience retention over time.

3) Measuring Performance: Different platforms offer different analytics tools. Instagram Insights provides valuable but simpler metrics such as likes, comments, and views. On the other hand, YouTube Analytics offers more complex metrics such as watch time, audience retention or drop-off points, which are essential for analyzing long-form content.

As an example, Flinque’s influencer marketing platform utilizes these insights to guide brands through campaign planning. Flinque offers integrated, cross-platform analytics that let you compare the efficacy of short vs. long-form content. This aids in adjusting your strategy to match the medium and maximize engagement.

Remember, the choice between short and long form should be dictated by your campaign goals, target audience, and the nature of your message. Both have their strengths – short form for quick engagement and wide reach, long form for detailed messaging and audience retention. The key is to find a balance that suits your strategy.

Compare the strengths of each platform, consider your content and audience, then make an informed choice.