Higgsfield, HeyGen or Pika: which job does each one cover?

Pick by the job, not the brand: HeyGen's Avatar V page is about a talking digital twin, Higgsfield's changelog is about image, restyle and ad tools, and Pika was reported in late September as one place for video, image and sound. Sume covers images, video and a talking avatar through one API, but its avatar is English only and its voice cloning is app-only, not in the API.

Facts below come from each vendor's own page where I could open it. Pika's page was not opened, so its entry is a search-result summary and should be treated as reported.

What does each page say?

HeyGen's Avatar V page says the avatar needs 15 seconds of webcam footage, supports 175+ languages with phoneme-level lip sync and has no cap on generated length. The Higgsfield changelog lists Ads Studio, Genjutsu Restyle and FLUX 3 Image entries dated 2026-09-30 and 10-01. Pika's relaunch, with a Soundtrack feature that adds synchronized sound to video, comes from a search summary of pika.art.

Which one fits a talking-head ad?

If the presenter must be a specific real person recorded on a webcam, the HeyGen page describes that input. Sume's avatar create route takes a prompt, structured traits or one reference image, and avatar video renders scripts of 4 to 60 seconds at 720p.

Which one fits a set of ad stills?

The Image API returns Sume-hosted URLs, takes up to 10 images per call (lower on some models) and charges only completed generations. Ads Studio is a link-to-ad tool; Sume expects you to supply the prompt and references.

What should I decide first?

Write the job in one sentence, find the vendor page that states it, and run one paid sample on each short list. Anything you only saw in a summary needs confirming before you plan around it.