Seedance 2.0 vs Sora 2: I Tested Both with Identical Prompts — Here's the Full Breakdown

When I started building with AI video APIs, the first question was obvious: which model should I default to? Spec comparisons didn’t help much. So I ran the same prompts through both Seedance 2.0 and Sora 2 and compared what actually came out. Three tests, three different failure modes: Physics realism — destruction and particle dynamics Fast motion + hard lighting — complex human movement under challenging conditions Character + emotion — subtle facial transitions All tests used identical prompts. Both models accessed through EvoLink’s unified API . Test Setup Variable Setup Prompting The same prompt for both models in each test Goal Compare output behavior, not marketing claims Focus areas Physics, motion coherence, lighting, facial detail, and audio behavior Reading rule We judge what a