An AI video studio developed by Hedra. It processes image, audio, and text simultaneously to generate “talking character videos” with lip sync and natural expressions and gestures. Its core Character-series models excel at mouth movement, blinking, and gaze, letting you turn a single character image plus an audio file (or text-to-speech) into a video that looks as if the character is really speaking. A multi-model setup is another hallmark: numerous external image and video models such as Kling AI, Veo, and Sora can be called from a single credit balance, making Hedra a hub for a wide range of AI video production beyond character videos.
Key Features
- High-precision lip sync and expressions: The Character-series models generate not only mouth movement matched to the audio but also natural blinking, gaze, head movement, and gestures. A single still image becomes a “talking character”
- Simultaneous image, audio, and text processing: A simple workflow — upload a character image, then attach an audio file or type text (with automatic speech generation) to complete a video
- Multi-model setup: Call numerous external image and video generation models, including Kling AI, Veo, and Sora, from Hedra’s single credit balance. No need to subscribe to multiple services for different purposes
- Voice cloning: Create a custom voice profile from a sample of your own voice and have your character speak with it (a feature for paid plans)
- Fully browser-based: Provided as a web app with no installation required. Generated videos can be downloaded as MP4 and other formats
- Free plan available: Free credits are granted just for signing up, so you can check the quality with short test videos
Pricing
| Plan | Monthly Price | Highlights |
|---|---|---|
| Free | $0 | 100 credits, with watermark |
| Basic | $15 | 1,500 credits/month, no watermark, commercial use |
| Creator | $30 | 5,400 credits/month, advanced features such as voice cloning |
| Professional | $75 | 14,400 credits/month |
| Enterprise | Contact sales | Custom credits, dedicated support, SSO, and more |
Credits are consumed based on video length, resolution, and the model used (for Character-series models, roughly a few credits per second at 720p).
Pricing is as of August 2026. Check the official site for the latest pricing.
Pros & Cons
✅ Pros
- The ease of creating a lip-synced character video from just one still image and audio
- Natural acting that goes beyond lip sync, including blinking, gaze, and gestures
- Multiple external AI models (Kling AI, Veo, Sora, and more) usable from one credit balance
- Voice cloning and text-to-speech support cover narration production end to end
- A free plan lets you test the quality before paying
⚠️ Cons
- The free plan has few credits and adds a watermark, so practical use effectively requires a paid plan
- Because of the credit system, costs can add up quickly with long videos, high resolutions, or heavy use of premium models
- The Character-series models have an output resolution ceiling, so higher-resolution needs depend on external models
- The UI is English only, with no Japanese interface
Comparison with Similar Services
| Comparison | hedra | HeyGen | Synthesia | D-ID |
|---|---|---|---|---|
| Main use | Character videos + multi-model video generation | AI avatar videos and translation | Corporate training and explainer videos | Talking-head videos from photos |
| Source material | Any image + audio/text | Stock and custom avatars | Stock and custom avatars | Photos and illustrations |
| External model access | Many, including Kling AI/Veo/Sora | None | None | None |
| Voice cloning | Yes | Yes | Yes | Yes |
| Free plan | Yes | Yes | Limited | Free trial |
Who Is It For
- Creators and VTuber-related producers who want to make videos where original characters or mascots “speak”
- YouTubers and marketers who want to mass-produce explainer or narration videos without showing their face
- People who want to try multiple video generation models such as Kling AI and Veo in one place without separate subscriptions
- Anyone who wants to turn still illustrations or AI-generated images into short videos for social media
Summary
hedra is an AI video studio built around lip-synced talking character videos, with the added ability to call leading external image and video models from a single credit balance. The ease of producing a naturally “speaking” video from just a still image and audio dramatically shortens production workflows for character content and narration videos. Start with the free plan to see how it handles your material, and consider the watermark-free Basic plan or above for ongoing use.