Koox (https://koox.ai/) generates sound videos from an instruction and a starting image from the Sora 2, Veo 3 Fast and Veo 3 pro models.

Some possible format choices: duration, orientation, quality.
Export mp4.

Please note: images with people are not accepted.

50 free credits when opening an account. Credits can be obtained by logging in every day (1 on day 1, 2 on day 2, etc.) or by sharing the app.
Cost of a build (varies during testing depending on duration or quality): 5 credits for Sora 2, 10 credits for Veo 3 fast, 50 credits for Veo 3 pro.

Images for testing:

• https://commons.wikimedia.org/wiki/File:WAB_BDhe_4-4_115_Kleine_Scheidegg_-_Wengernalp.jpg
• https://commons.wikimedia.org/wiki/File:002_Wild_Alpine_Ibex_Swiss_Alps_and_Creux_du_Van_Photo_by_Giles_Laurent.jpg