Wan 3.0 Spicy vs Wan 2.7 i2v Spicy: Should You Migrate?

Key TakeawaysBoth endpoints are live on Siray — a migration question, not a waiting question.Wan 3.0 Spicy adds text-to-video and reference-to-video, doubles the duration ceiling to 30 seconds, opens a 480p budget tier, and publishes per-tier rates.It also drops three parameters Wan 2.7 i2v Spicy has: negative_prompt, prompt_expansion_enable, and audio track upload — so a pipeline built on any of them is not a model-string swap.

Generational upgrades are usually presented as strictly additive. This one is not: Wan 3.0 Spicy is broader and cheaper at low resolution, but it removes prompt controls Wan 2.7 i2v Spicy exposes. Launch details for the newer endpoint sit in the Wan 3.0 Spicy announcement.

Side by Side

What Moving Gains You

Text-to-video and reference-to-video. Wan 2.7 i2v Spicy has no t2v or ref2v sibling, so every Spicy generation starts from a supplied image; only the Uncensored endpoints cover those modes. Wan 3.0 Spicy has all three, removing that upstream step.

The rest compounds: the duration ceiling doubles to 30 seconds, a 480p tier makes iteration passes cheap, and end_image on i2v allows first-and-last-frame generation rather than a single starting point.

What Moving Costs You

negative_prompt is gone. Any pipeline that steers output by excluding unwanted elements must be rewritten as positive description — the most disruptive difference, since negative prompts are often load-bearing here.

prompt_expansion_enable is gone. On Wan 2.7 i2v Spicy it defaults to true, so the model rewrites prompts unless switched off. Wan 3.0 Spicy has no switch, which is not the same thing as no expansion.

Audio track upload is gone. Wan 2.7 i2v Spicy accepts an audio input; Wan 3.0 Spicy exposes only the audio_enable toggle.

FAQ

What does Wan 3.0 Spicy remove?

Three parameters that Wan 2.7 i2v Spicy exposes: negative_prompt, prompt_expansion_enable, and audio track upload. Wan 3.0 Spicy exposes only the audio_enable toggle, so an existing track is married to the output in post.

Does Wan 3.0 Spicy still expand prompts if the parameter is gone?

Unknown. The absence of prompt_expansion_enable is not evidence that no expansion occurs, only that it cannot be turned off from the request. Prompts tuned against Wan 2.7 i2v Spicy with expansion disabled should be re-tested rather than assumed identical.

How much does Wan 3.0 Spicy cost?

Console-tested per-tier rates, identical across all three variants: $0.065 per second at 480p, $0.13 at 720p, and $0.26 at 1080p. A 10-second 1080p clip is $2.60, the same clip at 480p $0.65. For ref2v, input video length counts toward billable duration up to 5 seconds, plus the output length.

How much does Wan 2.7 i2v Spicy cost?

It has no published per-tier rates. The pricing page figure is a floor; the real formula lives in the console model detail page's Pricing block, which has not been measured for this endpoint. It must not be estimated from Wan 3.0 Spicy's tiers or inferred from any other Wan endpoint — a short test call is the only honest way to size it.

Should I migrate to Wan 3.0 Spicy?

Stay on Wan 2.7 i2v Spicy if negative_prompt is doing real work in the prompt library, or if audio tracks are supplied per generation. Migrate if text-to-video or reference-driven generation is needed, if clips must exceed 15 seconds, or if published rates matter for budgeting. Switching is one change to the model string, so both can run side by side while prompts are re-validated.

See also the NSFW AI video API roundup and ByteDance's Seedance 2.5 Spicy.

Create your free Siray account and call both generations of Wan Spicy with one API key.

Siray provides access to uncensored AI generation models strictly for legal adult creative use. All content must comply with applicable laws. Siray enforces a zero-tolerance policy on CSAM and any content involving minors. Uncensored access means no excessive content filtering beyond legal requirements — it does not mean illegal content is permitted.