什么是文生视频 AI?

文生视频(T2V)AI 使用深度学习将文本描述转换为视频片段。输入场景描述,Seedance 2.0、Sora 2 或 Kling 3.0 等模型即可在数秒内生成包含运动、光照和镜头运动的匹配视频。

文生视频 AI 的关键特性

T2V 与其他 AI 视频方法的区别。

自然语言输入

用自然语言描述场景。T2V 模型从文本中解析主体、动作、风格、镜头角度和氛围来生成匹配的视频。

快速生成

现代 T2V 模型在 30-120 秒内生成视频。Luma AI 在约 120 秒内生成 120 帧,Seedance 在 90 秒内生成 4K 视频。

多种风格

T2V 支持多种视觉风格,包括写实、电影感、动漫、水彩和抽象。通过提示词关键字或模型参数控制风格。

分辨率与时长

每次生成的视频从 4 秒(Seedance)到 20 秒(Sora),分辨率高达 4K。Kling 等多镜头工具支持超过 2 分钟的序列。

提示词框架

结构化提示词能产生更好的效果。SCELA 框架(主体、镜头、环境、光照、动作)可将输出质量提高 40%。

无需硬件

T2V 在云端 GPU 上运行。所有主流工具都在浏览器中运行,无需本地 GPU、无需下载、无需技术配置。

文生视频 AI 常见问题

关于用 AI 将文本转换为视频的常见问题。







探索文生视频工具

体验本指南中讨论的 AI 模型。

AI Video Generator

Free AI video generator — create videos from text, images, or clips with Seedance 2.0, Sora 2, Kling 3.0, Runway Gen-4 & more. Compare models side by side.

AI Image Generator

Free AI image generator — create images from text prompts with Midjourney v7, Flux 2, DALL-E 3, Stable Diffusion & more. Compare quality side by side.

AI Music Generator

Free AI music generator — create songs with vocals, instrumentals & soundtracks using Suno v5, Udio 2 & more. Text-to-music with lyrics support.

AI Video Prompt Generator

AI video prompt generator — build optimized SCELA prompts for Seedance 2.0, Sora 2, Kling 3.0 & Runway Gen-4. Free tool with templates for YouTube, TikTok & Shorts.

Seedance 2.0 AI Video Generator

Seedance 2.0 by ByteDance — Director Mode with 12-file input, 4K output, face-lock consistency & lip-sync. Free 5 videos/day on Dreamina.

Kling 3.0 AI Video Generator

Kling 3.0 by Kuaishou — multi-shot 4K AI video with up to 6 camera cuts, lip-sync dialogue & synchronized audio. Free 6 clips/day, Pro from $8/mo.

Sora 2 AI Video Generator

Sora 2 by OpenAI — cinematic 1080p AI video from text with Storyboard editor, physics simulation & seamless scene transitions. Plans from $20/mo.

Runway Gen-4 AI Video Generator

Runway Gen-4 & Gen-4.5 — #1 on Video Arena with cinematic 4K output, motion brush, camera controls, inpainting & Adobe Firefly integration. From ~$15/mo.

Veo 3 AI Video Generator

Veo 3 by Google DeepMind — native audio generation alongside video, vertical 9:16 for TikTok/Shorts, scene extension & Gemini API access. Free to try.

Hailuo AI Video Generator

Hailuo AI by MiniMax — ultra-fast video generation with complex character expressions, anime/ink wash/game CG art styles & generous free tier. 30-second generation.

Wan 2.6 AI Video Generator

Wan 2.6 by Alibaba — open-source AI video model you can self-host. Text-to-video, image-to-video, ComfyUI integration & community extensions. Free online.

Luma AI Dream Machine Video Generator

Luma AI Dream Machine — ultra-fast AI video generation with camera motion controls, keyframe animation & image-to-video. Free 30 generations/month, API from $0.0032/frame.

Pika AI Video Generator & Editor

Pika AI — generate and edit AI videos with Pikaffects visual FX, lip sync, scene expansion & AI sound effects. Free 250 credits/month, Standard from $8/mo.

Midjourney 7 AI Image Generator

Midjourney v7 — premium photorealistic AI images with personalized style, ultra-high resolution, variation & remix tools, and multi-image blending. Plans from ~$10/mo.

Flux 2 AI Image Generator

Flux 2 by Black Forest Labs — open-weight AI image model with fast inference, accurate text rendering & commercial-friendly licensing. Self-host or use online.

Suno 5 AI Music Generator

Suno v5 — generate full songs with vocals, lyrics & multi-instrument arrangements from text prompts. Free tier available, premium plans for commercial use.

Udio 2 AI Music Generator

Udio 2 — studio-quality AI music generation with vocal cloning, stem separation, remix tools & genre-specific fine-tuning. Audiophile-grade output quality.

Text to Video AI Generator

Text to video AI — turn text prompts into cinematic video clips. Compare Seedance, Sora, Kling, Runway & 10+ models side by side. Free to start.

Image to Video AI Generator

Image to video AI — animate photos and illustrations into 4-20s video clips with motion control, camera paths & character consistency across frames.

Video to Video AI Generator

Video to video AI — restyle, upscale & transform existing clips with AI style transfer. Convert footage to anime, cinematic, or artistic looks while preserving motion.

Text to Image AI Generator

Text to image AI — generate photorealistic or artistic images from text descriptions. Compare Midjourney v7, DALL-E 3, Flux 2 & Stable Diffusion side by side.

Image to Image AI Generator

Image to image AI — transform, upscale & restyle photos with AI-powered style transfer, inpainting, outpainting & 4x resolution enhancement. Free online tool.

Text to Music AI Generator

Text to music AI — generate royalty-free tracks, jingles & background music from text prompts. Create custom soundtracks for YouTube, podcasts & social media.

AI Voice Generator

AI voice generator — create realistic voiceovers, narration & text-to-speech in 50+ languages. Voice cloning, emotion control & video narration export.

从文本生成视频

用文字描述在几秒内生成视频片段。