What is Ketchup AI AI Video Generator?

Ketchup AI AI Video Generator is a multi-model AI video platform that lets you create cinematic 4-15 second clips from text or reference images. It aggregates six leading AI video models — Seedance 2.0 (recommended default), Veo 3.1, Sora 2, Runway Gen-4.5, Kling 3.0, and Pika 2.5 — so you can pick the right tool per shot without juggling separate subscriptions. Every paid generation includes synchronized AI audio, full commercial rights, and ships without a watermark.

How does AI video generation work?

AI video generation turns a written prompt or a reference image into a short video clip by running a diffusion or autoregressive model on a large dataset of video-text pairs. You describe what should be on screen, what should move, the camera language, and the mood — the model interprets every cue and renders 96-360 frames (depending on length) along with synchronized audio when supported. Ketchup AI wraps this in a single workspace where you can switch models per shot.

What's the difference between text-to-video and image-to-video?

Text-to-video starts from a written description only — perfect for original concepts, fictional scenes, or styles you can't photograph. Image-to-video uses one or more reference images as a starting frame, anchoring character identity, product appearance, or location continuity across the clip. Use image-to-video for product demos, fashion editorials, and character-consistent storytelling; use text-to-video for cinematic concepts, abstract scenes, and visual exploration.

Which AI video model should I choose for my project?

For most use cases, start with Seedance 2.0 — it offers the strongest balance of native synchronized audio, 1080p resolution, and director-grade camera control. Pick Veo 3.1 for 4K cinematic finish and longer narratives via Scene Extension. Pick Sora 2 for physics-heavy scenes or storytelling that requires nuanced prompt understanding. Pick Runway Gen-4.5 for character/scene consistency across shots. Pick Kling 3.0 for multilingual dialogue or multi-shot storyboards. Pick Pika 2.5 for short social-media clips with creative effects.

Does Ketchup AI support synchronized AI audio?

Yes — Seedance 2.0 (our recommended default) generates dialogue, ambient sound, and SFX synchronized with the visuals in a single pass at 1080p 24fps, eliminating the post-production sound-design step. Veo 3.1, Sora 2, Kling 3.0, and Pika 2.5 also support native audio. Runway Gen-4.5 does not generate audio natively — for those clips, layer in voice and SFX through ElevenLabs or your editor. The platform handles all this transparently per model.

How long can my AI-generated videos be?

Single-clip length depends on the model: Seedance 2.0 supports 4-15 seconds, Kling 3.0 reaches up to 15 seconds, Sora 2 ranges 4-12 seconds (Sora 2 Pro up to 25), Veo 3.1 defaults to 8 seconds with Scene Extension stitching beyond 60 seconds, Runway Gen-4.5 spans 2-10 seconds (Turbo). For longer narratives, generate multiple clips and stitch them via timeline editing — most ad spots, explainers, and trailers are built from 2-6 chained clips.

What resolutions and aspect ratios are supported?

Ketchup AI supports 480p, 720p, 1080p, and 4K (model-dependent). Seedance 2.0 maxes at 1080p 24fps, Veo 3.1 ships native 1080p with optional 4K upscaling, Pika 2.5 reaches 1080p, while Runway Gen-4.5 and default Sora 2 cap at 720p. Aspect ratios cover 16:9 (YouTube, TV), 9:16 (TikTok, Reels, Shorts), 1:1 (feed posts), 4:3, 3:4, and 21:9 (cinematic anamorphic). Pick the format upfront — re-rendering after the fact costs another generation.

How much does AI video generation cost?

Pricing follows a credit model — each generation consumes credits based on the chosen model, resolution, length, and audio settings. New users get 10 free credits on signup, enough for 1-3 short clips. Paid plans start lower than running each provider separately because Ketchup AI negotiates wholesale capacity across the six bundled models. Check the Pricing page for current per-credit cost and bulk-tier savings; transparent metered billing with no surprise charges.

Are credits refunded if a generation fails?

Yes — failed generations (server errors, content-policy rejections, blank outputs) automatically refund credits within minutes. Successful generations that simply differ from your expectations are not refunded — that's a creative-iteration cost, not a system failure. We log every refund event in the My Works dashboard so you have a transparent ledger. Paid plans include priority support for any disputed generation.

How long does video generation take?

Most 4-15 second clips finish in 30 seconds to 3 minutes depending on model, resolution, and platform load. Seedance 2.0 Fast and Pika 2.5 are the speediest tiers; 4K renders on Veo 3.1 and complex multi-shot Kling 3.0 outputs take longer. The My Works dashboard shows real-time progress for every job. For tight ad-iteration workflows, queue parallel generations across different models — Ketchup AI batches them across providers to maximize throughput.

Can I use AI-generated videos commercially?

Yes — every paid generation on Ketchup AI includes full commercial-use rights and ships without a watermark, so you can drop clips straight into ads, product launches, client deliverables, and monetized social-media content. The free 10-credit starter pack is for personal exploration and may carry per-model attribution in some cases — upgrade before commercial use. Always confirm the commercial terms shown in your dashboard at generation time.

How is Ketchup AI different from Sora, Runway, or Pika?

Ketchup AI is a multi-model aggregator — you get six flagship video models in one workspace instead of one product per subscription. Sora is OpenAI-exclusive and invitation-gated through an iOS app; Runway is character-consistent but lacks native audio (Gen-4.5 maxes at 720p); Pika focuses on short-form social effects. Ketchup AI lets you pick the right model per shot, ship with native audio when needed, and pay one bill instead of four. Plus, every generation is commercial-ready with no watermark.

Ketchup AI AI Video Generator

Generate cinematic AI videos with Seedance 2.0 — text-to-video, image-to-video, synced audio at 1080p, full commercial rights, no watermark.

AI Video Generation

Model

Mode

Optional: add references to guide generation

Prompt*

Describe the video you want to generate...

0 / 2000

Resolution

Duration

Aspect ratio

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10 credits

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AI Video Showcase — Real Outputs from Seedance 2.0 + 5 Models

15 unedited generations covering cinematic, commercial, fashion, food, travel, sci-fi, and game-trailer use cases. Hover for the prompt; click any clip to play full-screen.

AI Video Showcase — Real Outputs from Seedance 2.0 + 5 Models

15 unedited generations covering cinematic, commercial, fashion, food, travel, sci-fi, and game-trailer use cases. Hover for the prompt; click any clip to play full-screen.

Cinematic

Alien Fantasy World

Fragrance

Luxury Perfume Ad

Product

Product Launch Teaser

Travel

Maldives Travel Commercial

Action

Eastern Wuxia Duel

Film

Hollywood Racing Movie

Sci-Fi

Spaceship to the Stars

Lifestyle

Golden Retriever & Butterflies

Food

Sushi Chef at Work

Fashion

Red Dress on the Cliffs

Game Trailer

Midnight Duel

Vlog

Girlfriend POV Vlog

Food

Mouth-watering Food Close-up

Dance

Urban Street Dance

Makeup

Luxury Lipstick Ad

Why Choose Ketchup AI AI Video Generator

A creator-first AI video platform — top models in one place, native audio, full commercial rights, and zero learning curve.

Free Starter Credits

10 free credits on signup — generate your first 1080p AI video clip in under 30 seconds, no credit card required.

Native Audio-Video Sync

Powered by Seedance 2.0 — produce dialogue, ambient sound, and SFX synchronized with the visuals in a single pass at 1080p 24fps.

Render in Under 30 Seconds

4-15 second AI video clips delivered fast — text-to-video and image-to-video both run on optimized inference for rapid iteration.

Full Commercial Rights · No Watermark

Every paid generation ships with commercial-use rights and zero watermark — drop straight into ads, product demos, and client deliverables.

Director-Grade Controls

Multi-shot composition, camera-motion paths, lens choice, and high-fidelity text rendering on signage, titles, and Logos — all from natural-language prompts.

AI Video Generator Use Cases

From social ads to game trailers — see what creators ship with Ketchup AI every day.

Social Media Ads

TikTok, Instagram Reels, and YouTube Shorts ads — generate hook-first 9:16 vertical clips with synced voice-over and music in under a minute. Test 10 creative concepts before lunch.

Product Demos & Hero Shots

Animate static product photos with image-to-video, layer in ambient sound, and ship 1080p hero clips for Shopify, Amazon, and landing pages — no studio rental, no shoot day.

Explainer & Tutorial Videos

Translate complex topics into 4-15s scenes with synchronized narration. Perfect for online courses, product onboarding, knowledge-base articles, and developer documentation.

Storyboard & Pre-Vis Prototyping

Directors and writers visualize scripts before the shoot — multi-shot composition, lens choice, and motion paths make Ketchup AI a fast-turnaround pre-vis tool for film and ad agencies.

News & Editorial Explainers

Independent media and creators turn breaking news into illustrated explainer clips. Generate location B-roll, character cameos, and atmospheric shots that no stock library can match.

Game & App Trailers

Indie developers craft cinematic teasers for Steam, App Store, and Kickstarter pages. Combine character consistency, dynamic motion, and synced SFX without a VFX pipeline.

Explore More AI Tools on Ketchup AI

Pair AI video with our other AI creative tools — all in one platform, one bill, one workspace.

AI Image Generator

GPT Image 2, Nano Banana 2, FLUX.2 — text-to-image and image-to-image at 4K.

Try it

AI Music Generator

40+ genres, custom lyrics, royalty-free background music for ads and videos.

Try it

AI Voice Cloning

Clone any voice in 12 languages — perfect for narration and dubbing on AI videos.

Try it

Top AI Video Models in 2026

Compare native audio support, resolution, clip length, character consistency, and commercial rights across the leading AI video generators — Seedance 2.0, Veo 3.1, Sora 2, Runway Gen-4.5, Kling 3.0, and Pika 2.5.

Recommended · Default

Seedance 2.0

ByteDance · Doubao

Strengths

Native audio-video generation — synced dialogue, ambient sound, and SFX produced in a single pass at 1080p 24fps
Unified multimodal architecture — text-to-video, image-to-video, scene editing, and video extension all in one model
Director-grade camera control — interpret natural-language prompts into multi-shot composition, lens choice, and motion paths
4-15 second clips with stable physics, faithful prompt adherence, and fluid motion across photorealistic and stylistic outputs

Veo 3.1

Google DeepMind

Strengths

4K upscaling on top of native 1080p, plus Scene Extension to chain clips well beyond 60 seconds
Native synchronized audio (dialogue, ambient, SFX) with both 9:16 vertical and 16:9 horizontal formats supported natively
"Ingredients to Video" — combine multiple reference images, characters, and styles into a single coherent shot

Trade-offs

• All outputs include SynthID provenance markers — invisible but cryptographically traceable
• Default clip is only 8 seconds; longer narratives require manual Scene Extension stitching

Sora 2

OpenAI

Strengths

World-simulation-grade physics — failed shots rebound naturally, gymnasts complete back-flips with realistic momentum
Native synchronized audio plus "cameos" — inject real people, pets, or objects with their voices into generated scenes
Most expressive prompt understanding for narrative-heavy storytelling — the "GPT-3.5 moment for video"

Trade-offs

• Default Sora 2 caps at 720p; 1080p output requires the experimental Sora 2 Pro tier on ChatGPT Pro
• Access is invitation-gated through the Sora iOS app and sora.com — not openly available worldwide

Runway Gen-4.5

Runway

Strengths

Best-in-class character, object, and scene consistency across shots — keep the same protagonist or world from a single reference image
Multi-camera coverage and GVFX — direct shots from different angles within the same generated scene
Currently #1 on Artificial Analysis text-to-video leaderboard with a 1247 Elo score

Trade-offs

• No native audio — voice and sound design must be added through ElevenLabs integration or external editors
• Maximum 720p output; native 1080p is not yet documented in official Gen-4 specs

Kling 3.0

Kuaishou

Strengths

Multi-language native dialogue across English, Chinese, Japanese, Korean, and Spanish with multi-character voice tracks
Multi-shot storyboard — direct each shot's duration, framing, lens, and motion within a single scene plan
15-second clips with native audio synchronization and high-fidelity text rendering on signage, titles, and Logos

Trade-offs

• 4K is officially confirmed for Kling Image 3.0; "Native 4K" video claim is from marketing pages, not the IR release
• Top-tier features (multi-shot storyboard, full Native 4K) are gated behind the Ultra subscription tier

Pika 2.5

Pika Labs

Strengths

Pikaffects creative library — apply melt, explode, inflate, and 50+ stylized transformations no other model offers
Pikaframes / Pikaswaps / Pikadditions — keyframe transitions, in-scene object replacement, and add-on insertion
Pikaformance built-in audio generation — produce dialogue and sound effects inside the same workflow

Trade-offs

• Tuned for short social-media clips up to 10 seconds — not optimized for narrative or cinematic lengths
• Requires paid Standard / Pro / Fancy tier for commercial use; the free tier is for personal exploration only

Ketchup AI vs Sora vs Runway vs Pika

Side-by-side feature comparison so you can pick the right AI video generator for your workflow.

Feature	Ketchup AI	Sora 2 App	Runway Gen-4.5	Pika 2.5
Top AI video models in one place	6 flagship	1 (proprietary)	1 (Gen-4.5)	1 (Pika 2.5)
Native synchronized audio	✓ via Seedance 2.0	✓	✗ (ElevenLabs add-on)	✓ Pikaformance
Maximum resolution	1080p (Veo 3.1 up to 4K)	720p (Pro: 1080p)	720p	1080p
Single-clip max length	15s (Seedance / Kling)	12s (Pro: 25s)	10s	10s
Character / scene consistency	✓ (via Runway, Seedance)	Cameos	Best-in-class	Pikaswaps
Multi-shot storyboard	✓ (via Kling 3.0)	✗	Multi-camera coverage	✗
Commercial use · no watermark	✓ on paid plans	Watermarked default	✓ on paid plans	✓ paid only
Free starter credits	10 free credits	✗ (invitation only)	Free trial	Limited free tier

Comparison reflects publicly documented features as of April 2026. Always verify the latest specs on each provider's official page before procurement.

How to Write Great AI Video Prompts

Master prompt writing for AI video generation in five simple steps — covering subject, motion, style, camera work, and atmosphere with synced audio.

Pro tip · Seedance 2.0 understands compound prompts mixing subject, motion, and audio cues in a single sentence — no need for rigid structured formats.

Define Subject

Clearly describe the protagonist, object, or scene you want on screen.

•Use specific nouns: a young woman, a golden retriever, a vintage red Mustang
•Describe key visual attributes: age, hair color, outfit, condition, signage
•For multiple subjects, define spatial relationships: "left of", "behind", "facing"
•Anchor character identity with a reference image when shooting image-to-video

Example

"A young female chef in a white double-breasted jacket, standing at a steel kitchen counter."

Describe Motion & Action

Tell the model what changes over the 4-15 seconds of the clip.

•Use active verbs: walks, picks up, slowly turns, suddenly grins
•Describe pacing: "slow-motion", "rapid sequence", "deliberately"
•Specify direction: "from left to right", "zooming closer", "circling around"
•Avoid impossible physics — Sora 2 simulates failure realistically; lean into it

Example

"She slowly chops a tomato, sets down the knife, and looks up smiling at the camera."

Set Visual Style

Pick the aesthetic — photorealism, anime, 3D render, claymation, or graphic illustration.

•Reference filmmakers / DPs: "shot like Wes Anderson", "Roger Deakins lighting"
•Specify aspect ratio: 9:16 for Reels, 16:9 for YouTube, 1:1 for feed
•Mention film stock or finish: "35mm grain", "clean digital", "VHS texture"
•For stylized output, name the look: "Ghibli-inspired", "Pixar 3D", "ink wash"

Example

"Soft natural window light, shallow depth of field, 35mm film aesthetic, 9:16 vertical."

Direct the Camera

Choose the lens, framing, and motion path — Seedance 2.0 and Kling 3.0 both interpret cinematic camera language.

•Framing: extreme close-up, medium shot, wide establishing, over-the-shoulder
•Movement: dolly in, slow pan left, handheld follow, locked-off tripod
•Lens: 24mm wide, 85mm portrait, fisheye, anamorphic
•Cuts: single continuous take vs. multi-shot storyboard (Kling specialty)

Example

"Slow dolly-in from medium shot to close-up on her face as she smiles, 50mm lens, locked focus."

Layer Lighting, Audio & Mood

Specify the emotional tone, lighting setup, and synchronized audio — Seedance 2.0 generates SFX, ambient, and dialogue in the same pass.

•Lighting: golden hour, neon-lit night, overcast soft light, dramatic chiaroscuro
•Audio: "ambient kitchen sounds", "soft jazz background", "her voice saying 'taste this'"
•Mood keywords: cozy, tense, energetic, contemplative, nostalgic
•Color grade: warm tones, teal-and-orange, desaturated, high-contrast B&W

Example

"Warm golden-hour lighting, gentle background piano, ambient kitchen sounds — cozy and inviting."

AI Video Generator FAQ

Common questions about Ketchup AI AI Video Generator — covering models, pricing, formats, and commercial use.

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Ketchup AI AI Video Generator