MuAPI vs Higgsfield: How Much Does an 8-Second AI Video Really Cost

You need a vertical video for a social media cover. Eight seconds, 720p, ideally with generated audio. Two APIs can do it today: MuAPI (running Veo3) and Higgsfield (running Wan 3.0, Kling, Seedance, and their own models). The question is price — and the answer depends on what you actually need.

What follows is not a quality comparison. We never generated a single clip on Higgsfield — the account has no credits and loading it is the owner's call, not ours. This is a cost and API comparison, built from the MuAPI production pipeline we already pay for and the Higgsfield `/estimate` endpoint that returns pricing without spending. Every number was measured on 21 September 2026 on real accounts.

Video with generated audio: MuAPI wins

MuAPI charges $0.60 for an 8-second clip via `veo3-fast-image-to-video` at 720x1280, 24fps, with audio generated from the visual content. The closest equivalent on Higgsfield is `alibaba/wan-3.0/image-to-video` at 720p with `generate_audio: true` — that costs $0.80. MuAPI is 25% cheaper for the same job.

If you need 1080p on Higgsfield, the price doubles to $1.60. MuAPI doesn't offer 1080p on this model — its output is fixed at 720p.

Video without audio: Higgsfield wins

If you already have your own soundtrack (as we do — each post gets a dedicated Suno track at $0.09), the generated audio isn't worth the premium. Without audio, Higgsfield's `kling-video/v3.0-turbo/image-to-video` at 720p costs $0.448 — 25% below MuAPI's $0.60.

The Kling standard model (`v3.0/std`) with our account's 50% discount comes to $0.504. Seedance 2.0 with a 30% discount reaches $2.42 for the same 8 seconds — it prices by video tokens, not by second, and the formula scales fast with resolution.

Still image: Higgsfield wins by a wide margin

One image via MuAPI's FLUX costs $0.015 at 1152x1440. Higgsfield's `soul/v2/standard` generates an image for $0.004 — 3.75 times cheaper.

But here's the trap: `soul/standard` (without the `v2`) costs $0.094. The two endpoint names differ by three characters and the price differs by 23x. One autocomplete mistake multiplies your bill without warning.

The catch — pricing page vs. real price

Higgsfield's public pricing page announces per-second rates at 480p resolution. The headline for Wan 3.0 reads "$0.05 per second." That's true — at 480p. At 720p, it's $0.10. At 1080p, $0.20. Someone planning a budget from the homepage and generating at 1080p pays 4x what they expected.

Seedance 2.0 doesn't price by second at all. It prices by video tokens — `ceil(seconds x width x height x 24 / 1024)` — which makes the jump from 480p ($1.08 for 8s) to 4K ($12.44) a surprise unless you run the formula yourself.

What's not about price

Higgsfield has presigned upload — you `POST /files/generate-upload-url`, get a signed URL, PUT your image, and receive a public URL back. MuAPI requires the `image_url` to already be publicly hosted; a data URI returns `422 url_too_long`. For anyone animating a cover that isn't published yet, that's one less step.

Higgsfield's concurrency limit returns HTTP 400 (not 429) with `"Maximum number of concurrent requests"`. Code that treats 400 as a fatal error loses the entire batch.

Output URLs from Higgsfield expire in roughly 7 days — always download immediately. Terminal states are `completed`, `failed`, `nsfw`, and `canceled`. Failed and NSFW jobs are not billed.

The API doesn't expose account balance. `/balance`, `/account`, `/credits`, `/me`, `/usage` all return 404. You discover you're out of credits when a submit responds `403 not_enough_credits` — without charging.

The honest verdict

For our specific job — one 8-second vertical clip per post with generated audio — MuAPI is cheaper ($0.60 vs $0.80). For teams that bring their own audio, Higgsfield's Kling turbo saves 25%. For still images, Higgsfield is nearly 4x cheaper.

There is no single winner. The answer is "it depends on whether you need generated audio" — and now you have the exact numbers to decide.

Disclosure: the Higgsfield link below is an affiliate link. We recommend Higgsfield for two of the three use cases above (images and video without audio) because the numbers support it, not as decoration. MuAPI has no affiliate program.

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