Seedance 2.5 Image to Video vs xAI Grok Imagine Video v1.5 Image to Video: Which image to video API Should You Use? (2026)

6 min · Updated 2026-07-11 · By the NamiFusion team

Seedance 2.5 Image to Video vs xAI Grok Imagine Video v1.5 Image to Video for image to video: pricing, parameters and when to pick which — both are testable in the NamiFusion playground.

Seedance 2.5 Image to Video and xAI Grok Imagine Video v1.5 Image to Video are both image to video models on NamiFusion — same REST API, same credit system, near-zero switching cost. The only real question is which to reach for first. Here is a practical decision guide by price, control and use case.

Spec snapshot

· Seedance 2.5 Image to Video (Doubao): image to video, 10 tunable parameters, about $1.16 per typical run

· xAI Grok Imagine Video v1.5 Image to Video (X Ai): image to video, 4 tunable parameters, about $0.840 per typical run

When should you pick which?

· Budget-first / high volume: pick xAI Grok Imagine Video v1.5 Image to Video — lower per-run cost compounds at scale.

· Need fine-grained control: pick Seedance 2.5 Image to Video — more tunable parameters, better for reproducible pipelines.

· Still unsure? Test both: run the same prompt through each model in the playground (exact quote before submit) — that is the fastest answer.

How hard is it to switch?

Near zero on NamiFusion: both models share the same POST /run endpoint — change the model_id and parameter names, and your keys, credits and polling logic all carry over.

FAQ

Can I use both models at once?+

Yes — one API key can call any model in the store; each is billed at its own price.

How current is this comparison?+

Specs and prices come from live model configuration; this page refreshes automatically every day.

Does the free trial cover both models?+

Signup bonus credits can only be used on selected models, and eligibility may change. The playground shows the exact quote for both models before submission.

Seedance 2.5 Image to Video vs xAI Grok Imagine Video v1.5 Image to Video: Which image to video API Should You Use? (2026) | NamiFusion Blog