Free AI Video Generator

An AI video generator is software that creates videos from text, documents, or images, with no camera, crew, or editing skills needed. With Synthesia, you describe the video you want and Syren, our AI video agent, makes a finished video with script, scenes, voiceover, and music, which you can then refine by chatting.

Yes, Synthesia's AI video generator is free to use. The free plan lets you create videos from prompts or any other input with Syren, add AI avatars and voiceovers in 140+ languages, and generate clips in AI Playground with models like Seedance 2.5, Veo 3.1 and FLUX 3 (as well as AI image generation models like FLUX.2 and Nano Banana Pro). On the free plan, Syren makes videos up to three minutes long. To make an AI video for free, sign up with no credit card, describe the video you want, and Syren builds it while you watch.

According to G2, Synthesia is the best AI video generator, ranked #1 out of 1,000+ tools in its Best AI Video Generators list. Syren, our AI video agent, turns a prompt, doc, or deck into a finished video with script, scenes, voiceover, and music. AI Playground gives you leading AI video models like Seedance 2.5, Veo 3.1 and FLUX 3 for individual clips. Every video can match your brand colors, and you can add realistic AI avatars as presenters, all on one platform trusted by 90% of the Fortune 100.

AI video models like Veo, Seedance, and Kling generate short clips from a prompt. Synthesia makes the whole video. Syren, our AI video agent, writes the script, designs the scenes, and adds voiceover and music, with an AI avatar to present it if you want one. If you’d rather work with a specific model, Veo 3.1, Gemini Omni, and FLUX 3 are built into AI Playground.

Most videos are ready in minutes. Syren builds your video live, so you can watch it take shape and start refining it straight away.

Videos made from a prompt can be up to 60 minutes long, depending on your plan, in landscape or portrait. For anything longer than 15 minutes, you'll be asked to confirm the plan before the video is built.

No. Describe what you want and Syren does the editing. To make changes, ask in chat for a new script, voice, or visual style, or select one part to change and keep the rest the same. You can also edit motion graphics text, numbers, and colors directly.

Yes. Syren can feature Synthesia’s realistic AI avatars as presenters, including supported stock avatars and avatars you’ve designed with Avatar Builder. Syren can suggest avatars, let you preview their voices, or create a new avatar from a description. To use a specific avatar, name it in your prompt. On Starter plans and above, you can also create a personal AI avatar of yourself from a photo and a short consent recording, then ask Syren to use “my avatar.”

Yes. Synthesia supports AI voiceovers in 140+ languages, so you can create videos for audiences around the world. You can also use AI dubbing to translate finished videos with natural-sounding voices.

Yes. You own the videos you create with Synthesia and can use them for commercial projects like product launches, marketing, and company communications. Make sure you have the rights to anything you upload, such as images, footage, or logos.

Yes, with Synthesia. In ChatGPT, add the Synthesia app. In Claude, add the Synthesia connector under Settings → Connectors, then enable it in your chat. Connect your Synthesia account and ask for the video you want, like “Make a 60-second explainer for our new app using Syren.” In both, the video appears in the chat, where you can refine it, download it, or publish a share link for your team. In ChatGPT, you can also attach a deck, PDF, or image for Syren to work from.

Yes. Synthesia is trusted by 90% of the Fortune 100, is SOC 2 Type II and ISO 42001 certified, and is GDPR compliant. Enterprise plans add SSO, brand kits, and admin controls, including the option to manage access to Syren.