What is Whisper Thunder?

Whisper Thunder is an AI video generator powered by Runway Gen-4.5 that converts still images into 5- or 10-second HD videos. It accepts JPG, PNG, WEBP and GIF inputs and exports 720p or 1080p video optimized for social platforms. The interface uses natural-language prompts for prompt-based motion control and precise prompt adherence.

Gen-4.5 outputs support photorealistic and stylized animation, complex scenes, detailed compositions, realistic physics, and expressive character motion. The workflow is a three-step process—upload image, add prompt, download video—suited to photographers, content creators, social media managers, marketers, and digital artists.

Whisper Thunder pricing Free trial

Free $0

Basic $14.9

Pro $34.9

Max $74.9

Verify on the official pricing page.

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Whisper Thunder's key features

Generates 5- or 10-second HD videos from a single image
Natural-language prompt-based motion control
Powered by Runway Gen-4.5 with temporal consistency, realistic physics, expressive character animation, and high visual fidelity
Supports JPG, PNG, WEBP, GIF and high-resolution inputs (recommended ≥1024×1024)
Fast generation (typically 30–60 seconds) with downloadable 720p or 1080p videos and synchronized audio

Whisper Thunder use cases

Create short, high-impact social media ads using Whisper Thunder by transforming product JPG/PNG images into 5–10 second 1080p videos with prompt-based motion control, photoreal or stylized looks, and realistic physics for Instagram Reels, TikTok and paid ad campaigns in under a minute
Bring portraits, historical photos or museum assets to life using Whisper Thunder by converting still images into subtle 5–10 second 720p/1080p cinematic loops with natural-language motion prompts and photorealistic animation for documentaries, exhibits, and storytelling
Produce attention-grabbing hero videos and looping website/email banners using Whisper Thunder by turning PNGs or GIFs into polished 5–10 second videos with stylized motion, fast generation times, and prompt-driven control—no additional video editor required