There is an issue affecting Sora 2 generations in Canvas. The issue is being investigated and we'll share an update once it is working as expected.

Sora 2 videos may fail to generate. Failed generations will automatically refund the credit to your account.

We recommend using another video model in the meantime.
Suggested alternatives: Kling 3.0, Wan 2.5, or Veo 3.1.