# AILink

> AILink is an API for ByteDance's Seedance video generation models: one API key reaches several upstream channels with automatic failover under the same task ID, charged once; usage is billed per video token and failed tasks are free.

- Website: https://ail.run
- API base URL: https://api.ail.run
- Currency: USD
- Protocols: platform API https://api.ail.run/v1/videos/generations; Volcengine Ark-compatible https://api.ail.run/api/v3; OpenAI Videos-compatible https://api.ail.run/v1
- Contact: Telegram https://t.me/xyhhjh

## Models

- [Seedance 2.0 (seedance-2.0-standard)](https://ail.run/models/seedance-2.0-standard): Seedance 2.0 (seedance-2.0-standard) generates 4–15 second videos at 480P / 720P / 1080P / 4K: text to video, first frame to video, first and last frame to video, multimodal reference (images, video, audio). It can generate synchronized audio. A 5-second 16:9 clip starts at 0.35 USD (480P).
- [Seedance 2.0 Fast (seedance-2.0-fast)](https://ail.run/models/seedance-2.0-fast): Seedance 2.0 Fast (seedance-2.0-fast) generates 4–15 second videos at 480P / 720P: text to video, first frame to video, first and last frame to video, multimodal reference (images, video, audio). It can generate synchronized audio. A 5-second 16:9 clip starts at 0.28 USD (480P).
- [Seedance 2.0 Mini (seedance-2.0-mini)](https://ail.run/models/seedance-2.0-mini): Seedance 2.0 Mini (seedance-2.0-mini) generates 4–15 second videos at 480P / 720P: text to video, first frame to video, first and last frame to video, multimodal reference (images, video, audio). It can generate synchronized audio. A 5-second 16:9 clip starts at 0.18 USD (480P).
- [Seedance 2.5 (seedance-2.5)](https://ail.run/models/seedance-2.5): Seedance 2.5 (seedance-2.5) generates 4–30 second videos at 480P / 720P / 1080P: text to video, first frame to video, first and last frame to video, multimodal reference (images, video, audio). It can generate synchronized audio. A 5-second 16:9 clip starts at 0.52 USD (480P).

## Docs

- [Quickstart](https://ail.run/docs/quickstart): Create an API key and generate a first Seedance video with curl, Python or Node.js.
- [Authentication](https://ail.run/docs/authentication): Bearer API keys and their controls: model allowlists, spending limits, expiry, rate and concurrency limits and IP allowlists.
- [Models](https://ail.run/docs/models): Seedance models, generation modes, resolutions, durations, aspect ratios and input limits.
- [Pricing](https://ail.run/docs/pricing): How video tokens are counted (width × height × frames ÷ 1024), reserved at submission, settled and released.
- [Uploading assets](https://ail.run/docs/assets): Upload images, video and audio, or import them by URL, into the private asset library.
- [Portraits](https://ail.run/docs/portraits): Virtual portraits and authorized real-person portraits for reference-to-video generation.
- [Tasks](https://ail.run/docs/tasks): Create, query, list and cancel video generation tasks; task states and results.
- [Idempotency](https://ail.run/docs/idempotency): Retry task creation safely with the Idempotency-Key header.
- [Result retention](https://ail.run/docs/results): How long generated videos are kept and how to get a fresh download link.
- [Webhooks](https://ail.run/docs/webhooks): Final-state webhooks signed with HMAC-SHA256 (X-AILink-Signature), delivered at least once with retries.
- [Errors](https://ail.run/docs/errors): Stable error codes, HTTP statuses and what to do about each.
- [Rate limits](https://ail.run/docs/rate-limits): Request and concurrency limits and recommended polling intervals.
- [Changelog](https://ail.run/docs/changelog): Changes to the API and the model catalog.
- [Ark-compatible](https://ail.run/docs/ark): Keep the official Volcengine Ark SDK and point base_url at this site.
- [OpenAI-compatible](https://ail.run/docs/openai): Create and fetch videos with the Videos API of the OpenAI SDK.
- [Asset API (AK/SK)](https://ail.run/docs/asset-api): Volcengine-compatible asset management API signed with an access key pair.

## API reference

- [OpenAPI 3.1](https://ail.run/openapi.json): every endpoint, schema and error code
- [Full text](https://ail.run/llms-full.txt): model parameters, price list, endpoint list and FAQ

## Optional

- [Pricing](https://ail.run/pricing)
- [FAQ](https://ail.run/#faq)