AI video generator for Instagram — Reels, feed and Stories clips with sound

Write a one-line hook, then in Kenerate's video studio pick Wan 3, set 9:16 and 5 seconds, and describe the action and the sound. Generate, add captions with Reels captions in the Middle position, download the MP4 and upload it as a Reel. For a Reel longer than one clip, generate one clip per beat and join them in an editor.

9:16 for Reels and Stories. For a feed post, 3:4 matches the taller profile grid and 1:1 makes a square post. Wan 3, Seedance 2.5 and Pixverse v6 render all three; Veo 3.1 Fast renders 9:16 but not square or 3:4. None of the models has a 4:5 setting, so use 3:4 for a tall feed post.

Instagram allows Reels up to 3 minutes (since January 2025). One AI generation is 2–30 seconds on Wan 3 and Seedance 2.5, up to 15 on Pixverse v6 and 8 on Veo 3.1 Fast, so a Reel longer than that is several clips joined together.

Sometimes. Meta may require an AI label when a post has photorealistic video or realistic-sounding audio that was digitally created or altered, and says there may be penalties for leaving it off. The rule does not apply to images. Content that Meta detects as AI-made can also get an "AI info" label automatically. Clearly animated or cartoon clips are lower-risk, but labelling realistic AI video is the safe default.

Not on Kenerate: video needs a paid plan, and new accounts get free credits for images. The cheapest clip with sound is Wan 3 at 480p — 15 credits a second, so 75 credits for 5 seconds; Pixverse v6 is 68 credits per 5 seconds. Downloads have no watermark.

Yes, on sound models such as Wan 3, Seedance 2.5 and Veo 3.1 Fast. Put the line in quotes in the prompt and say how it's said — "excited", "calm", "deep voice". Keep it under about ten words per 5-second clip.

Yes. Generate the clip with only ambient sound, or describe no music in the prompt, then add the track from Instagram's audio library when you post. If the clip already has speech, the native audio and the trending track will compete, so pick one.

Use the same image as the start frame for every clip — your own product photo, or one AI image of the character. Wan 3 and Seedance 2.5 also take reference images, which helps the look stay consistent across a series.

Yes — both use 9:16, so one vertical master works for Reels, Stories and TikTok. Make the feed version separately at 3:4 or 1:1 instead of cropping it.