Compare/Figma AI Site Builder vs Runway Act-Two

AI tool comparison

Figma AI Site Builder vs Runway Act-Two

Which one should you ship with? Here is the side-by-side panel verdict, pricing read, reviewer split, and community vote comparison.

F

Design & Creative

Figma AI Site Builder

Generate responsive layouts from prompts using your own design system

Ship

100%

Panel ship

Community

Free

Entry

Figma AI's Site Builder generates responsive web layouts from natural language prompts while respecting existing design system components and brand tokens. It lives natively inside Figma, so generated layouts use your actual component library rather than generic placeholder elements. The feature targets designers who want to move from brief to wireframe faster without abandoning their established design systems.

R

Design & Creative

Runway Act-Two

Animate any AI character with real motion transfer — full body

Ship

75%

Panel ship

Community

Paid

Entry

Runway Act-Two is a motion transfer feature built into Gen-3 Alpha that lets creators drive AI-generated characters with reference video footage, enabling full-body animation without traditional rigging or motion capture. Creators upload a reference performance video and Act-Two maps that movement onto a synthesized character. It's available now for Pro and Unlimited Runway subscribers.

Decision
Figma AI Site Builder
Runway Act-Two
Panel verdict
Ship · 4 ship / 0 skip
Ship · 3 ship / 1 skip
Community
No community votes yet
No community votes yet
Pricing
Included in Figma Professional ($16/mo) and above; not available on Starter free tier
Included in Pro ($35/mo) and Unlimited ($95/mo) plans
Best for
Generate responsive layouts from prompts using your own design system
Animate any AI character with real motion transfer — full body
Category
Design & Creative
Design & Creative

Reviewer scorecard

Designer
82/100 · ship

The component-aware generation is the actual design decision that earns this a ship — it means generated layouts use your real spacing tokens, your actual button variants, your defined type scale, not a hallucinated approximation of them. That's the difference between a tool that creates cleanup work and one that creates a starting point. The caveat: it still leans heavily on auto-layout defaults that produce structurally correct but visually predictable grids, so if your design system is expressive rather than utilitarian, the outputs will flatten it. But compared to every other AI layout tool that ignores your existing system entirely and forces a manual remap, this is a meaningful step toward AI that respects craft.

No panel take
Creator
75/100 · ship

What this actually produces is a responsive grid that slots your real components into sensible hierarchy — hero, nav, content sections — which sounds modest until you remember every other AI design tool hands you a Figma file full of ungrouped rectangles pretending to be a design system. The taste layer here is partially baked-in and partially delegated: Figma's model has learned layout conventions, but the tokens and components you've defined do the aesthetic heavy lifting, which means the output quality ceiling is directly tied to how mature your design system is. The editing surface is native Figma, which is genuinely good news — you're not trapped in a generation-only interface — but the AI doesn't yet understand iterative prompts like 'make this section feel less corporate,' so the refinement loop still drops back to manual.

84/100 · ship

The output is genuinely uncanny in the right way — a reference clip of someone walking becomes a fantasy character doing the same walk, with weight and momentum that doesn't feel like a puppet. The taste layer here is baked in: Runway has clearly trained on motion data that preserves physical plausibility, so output doesn't collapse into the liquid-limb horror that plagued earlier video gen tools. The editing surface is thin — you get the generation, not a timeline you can keyframe — but for the use case of 'I need this character to do this thing once,' it's actually good enough to ship.

Skeptic
71/100 · ship

The component-aware angle is the only thing that distinguishes this from the dozen AI layout generators that already exist, and it's a real differentiator — when it works. The scenario where it breaks is the one most teams actually face: design systems that aren't perfectly structured, with inconsistent naming conventions, missing variants, or components that predate auto-layout. Feed it a messy real-world library and the generation quality degrades to the same generic output you'd get from any competitor. What kills this in 12 months isn't a competitor — it's Figma itself shipping a more capable version bundled deeper into the product, making the current feature feel like a preview rather than a destination. Ships because it solves a real problem for teams with mature design systems, but that's a narrower user base than Figma's marketing implies.

76/100 · ship

The direct competitor is Kling's motion transfer and Adobe's Project Neo pipeline, and Act-Two holds up — the full-body fidelity is meaningfully better than what I've seen from Kling on complex locomotion. The scenario where this breaks is multi-person reference footage, fast cuts, or anything requiring consistent character identity across shots: you'll get a good single clip and a continuity nightmare the moment you need a second one. What kills this in 12 months is Sora or a native Adobe tool shipping motion transfer inside an NLE, at which point Runway's standalone credit-burning model competes on price it can't win — but that hasn't happened yet, so ship.

Founder
78/100 · ship

The buyer is already a Figma Professional subscriber, which means this feature has zero new sales motion — it's pure retention and upsell insurance against competitors like Framer AI and the growing list of design-to-code tools threatening Figma's seat count. The moat here isn't the AI generation itself, it's the component graph: Figma already owns the design system artifact for most mid-size product teams, so a generation feature that reads that artifact is structurally harder to replicate than a standalone AI layout tool. The business risk is that this accelerates the timeline to 'one designer instead of three,' which is good for Figma's enterprise retention story but creates real pricing pressure as the per-seat model gets harder to justify. Ships because it strengthens Figma's platform lock-in at exactly the moment competitors were starting to find footholds.

55/100 · skip

The buyer here is a mid-tier content creator or small studio, and the budget is 'generative AI tools' — a line item that's already crowded and getting scrutinized. The problem is the pricing architecture: credits burn per generation, which means a creator doing iteration-heavy work hits cost unpredictability fast, and the Unlimited plan at $95/mo is the only escape valve. The moat question is the real issue — Act-Two is a feature inside Gen-3, not a product, and Runway's defensibility depends entirely on model quality staying ahead of Kling, Pika, and whatever Adobe ships inside Premiere. The moment a platform player bundles 80% of this into an existing NLE subscription, Runway's standalone pricing story collapses. Good feature, shaky business.

Futurist
No panel take
80/100 · ship

The thesis Act-Two bets on: within three years, the bottleneck for character-driven content will be performance direction, not production cost — and motion transfer is the primitive that makes amateur direction usable. That's a plausible bet, and Act-Two is early enough on the motion-transfer trend line that it's building the training data and user intuition before the curve steepens. The second-order effect nobody's talking about is that this decouples actor likeness from actor performance at scale — reference footage becomes a commodity input, and the implied rights framework hasn't caught up. The dependency that has to hold: Runway needs to maintain model quality leadership for 18+ more months against well-funded Chinese labs that are closing fast.

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