Pay-as-you-go
Usage-based/usage-based
Top up a shared USD wallet and pay per image, per second of video or per task.
- No subscription
- No minimum
- Balance does not expire
- Same wallet for Studio and API
Castaly
Pay-per-generation AI video and image studio with Seedance, Kling, Wan and GPT Image
Paidcastaly.aiUpdated
About Castaly
Castaly is a web studio for generating AI video and images from third-party models, including Seedance, Kling, Wan, MiniMax and HappyHorse for video and GPT Image, Gemini Image, Seedream and Wan Image for images. Users pick a model, write a prompt, optionally attach a reference image or library asset, set aspect ratio, resolution and duration, and pay per generation from a shared USD wallet. Several listed video models have image-to-video and reference-to-video variants.
Best for
- Comparing several AI video and image models with public per-specification prices and paying only for what is generated
- Image-to-video clips: Animate a still image using an image-to-video model such as Kling or Wan.
- Model comparison: Compare video and image models and their prices on the same prompt.
- Marketing video drafts: Generate short clips and pay only for the seconds produced.
- Programmatic generation: Call the same models through the API from an app or agent.
Not ideal for
- Users who want a flat monthly subscription
- Users who need a free tier
Popular with
- Content creators
- Marketers
- Developers
- Teams generating video at volume
Screenshots
Key features
- Multi-model video generation
- Image generation
- Public per-spec pricing
- Pay per generation
- Reference inputs
- Community remix
- API access
- Creation records
Pros and cons
Pros
- Many video and image models from several makers in one studio
- Public price per specification, shown before generating
- No subscription or minimum, and the wallet balance does not expire
- Same account and wallet work for the studio and the API
- Operator is named in the footer and Modelflare terms
Cons
- Reseller of third-party models, so availability and pricing depend on upstream providers
- No free tier or free credits described
- Some models are priced per million tokens, which is harder to estimate than per second
- Web only, with no mobile app
- Castaly's own legal pages return 404; terms are on the Modelflare site
Pricing
Plans as listed by the vendor on . Check their site for current prices.
Enterprise
Custom/custom
Volume pricing, higher limits, priority support and custom onboarding.
- Volume pricing
- Higher limits
- Priority support
Our ratings
Scored out of 10 by the Finder Atlas editorial team.
7.7overall
- Model Breadth
- 8.3
- Pricing Clarity
- 8.0
- Ease of Use
- 7.5
- API Access
- 7.8
- Transparency
- 6.8
Platforms
- Web
- API
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Reviews
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Frequently asked questions
What is Castaly?
A web studio for generating AI video and images from several third-party models, charged per generation from a shared USD wallet.
Who runs Castaly?
The site footer says it is operated by Havenbyte LLC, which also runs the Modelflare API gateway that Castaly is built on. No address or registration details were found.
Is there a subscription?
No. The pricing page says there are no monthly fees, seats or commitments, and that the balance does not expire.
How does Castaly relate to Modelflare?
Castaly is the creative studio on the Modelflare gateway. Account, balance, API keys and usage history are shared.
Can I use only the API?
Yes. Create an API key through the Modelflare account and call the same models at the same public prices.
How much does a video cost?
It depends on model, resolution and duration. For example, Kling 2.6 at 720p std is listed at about $0.0382 per second, so a 5-second clip is roughly $0.19 before any request-specific multiplier.
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