视频三家比价同跑

同一提示词发三家，秒级看到效果与费用差。

必要なキー：video · 推定コスト：三家各跑一次约 ¥3–10

Guides

Kling vs Runway vs Hailuo price per second: an AI video billing comparison plus BYOK setupThe bill for video models hides in the billing structure, not the headline price. This guide compares per-second, subscription-credit and per-request billing, dates the comparison table, and shows how to wire your own API key (BYOK) for video in PolyCreator, including what it takes to reach Kling and Runway.