Streamline scene design with high-fidelity, auto-interpolated video
Kling 2.6 Pro: Realistic Image-to-Video with Sound Sync on playground and API | RunComfy
Transform images into cinematic videos with synchronized sound, lifelike motion, and expressive voices, delivering fast, high-fidelity storytelling for creators, marketers, and developers.
Introduction to Kling 2.6 Pro Features
Developed by kwaivgi under Kuaishou, Kling 2.6 Pro is an advanced image-to-video AI model that transforms static visuals into cinematic clips with synchronized sound and motion precision. Designed for creators, agencies, and marketers, Kling 2.6 Pro streamlines multimedia storytelling with expressive voices, ambient audio, and lifelike camera movement. On RunComfy, it delivers fast, high-fidelity results for marketing scenes, product demos, and social media content. For developers, Kling 2.6 Pro on RunComfy can be used both in the browser and via an HTTP API, so you don’t need to host or scale the model yourself.
Examples Created Using Kling 2.6 Pro











Kling 2.6 Pro on X: Latest Discussions
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Frequently Asked Questions
What type of license does Kling 2.6 Pro use, and can I use its image-to-video outputs commercially?
Kling 2.6 Pro follows a Non-Commercial or restricted Open RAIL-style license depending on your access channel. Using Kling 2.6 Pro image-to-video outputs through RunComfy does not change the original licensing terms — you must comply with Kuaishou Technology’s official policies when using generated content for commercial distribution.
What are the technical limitations of Kling 2.6 Pro when generating image-to-video clips?
Kling 2.6 Pro currently supports up to 1080p resolution across common aspect ratios (16:9, 9:16, 1:1). Prompt inputs are limited to around 1,000 tokens, and image-to-video sessions allow 1–2 reference images per render. Exceeding these constraints can cause warnings or degraded fidelity.
How can I transition from testing Kling 2.6 Pro in the Playground to production use via RunComfy’s API?
You can start with the Kling 2.6 Pro Web Playground to test your image-to-video prompts, then move to RunComfy’s API using your API key. The API mirrors Playground behavior but supports automated scaling, enabling you to integrate Kling 2.6 Pro directly into commercial or enterprise workflows.
What performance improvements does Kling 2.6 Pro offer over earlier Kling versions for image-to-video applications?
Kling 2.6 Pro introduces better facial motion, smoother transitions, built-in audio generation, and more accurate prompt interpretation than Kling 2.5. Its image-to-video results show stronger character consistency and lighting realism, bringing it closer to cinematic-grade output quality.
Can I disable audio output when using Kling 2.6 Pro for image-to-video generation?
Yes, Kling 2.6 Pro provides a toggle to disable audio, allowing silent image-to-video clips when native sound is unnecessary. This feature is useful for projects where you plan to add voiceover or sound design later in post-production.
What should developers know about latency and throughput when calling Kling 2.6 Pro via RunComfy API?
The average latency for Kling 2.6 Pro image-to-video generation is approximately 10–20 seconds per 5-second clip, depending on scene complexity and system load. RunComfy API requests queue intelligently to maintain stable concurrency across high-traffic periods.
Does RunComfy’s use of Kling 2.6 Pro grant me unrestricted rights to distribute generated image-to-video content?
No. RunComfy provides access to Kling 2.6 Pro under Kuaishou’s defined license. Even when generating image-to-video content through RunComfy, users must comply with the original model’s licensing terms, including any limitations around redistribution or commercial monetization.
How does Kling 2.6 Pro handle aspect ratio selection for image-to-video outputs?
Kling 2.6 Pro supports 16:9, 9:16, and 1:1 aspect ratios during image-to-video generation. Selecting the ratio before rendering ensures optimal composition and framing, particularly for platforms like YouTube (16:9) or TikTok (9:16).
Is Kling 2.6 Pro suitable for enterprise-scale image-to-video production?
Yes. Kling 2.6 Pro is optimized for scalability via RunComfy’s cloud API, with GPU resource pooling for large teams. Its image-to-video capabilities enable automated marketing content or storytelling applications, but commercial use still requires adherence to the model’s licensing conditions.
