> ## Documentation Index > Fetch the complete documentation index at: https://docs.budgetpixel.com/llms.txt > Use this file to discover all available pages before exploring further. # Lip sync with OmniHuman 2.0 > BytePlus OmniHuman 2.0 — the newest OmniHuman: animates the person (or character/pet) in an image to speak the input audio, with synchronized lips, expression, body motion and camera movement you can direct with a prompt. 720p; audio up to 120 seconds. Priced per second of the input audio, rounded UP to whole seconds, with a 4-second minimum (84 credits/second — e.g. a 12.4s clip bills as 13s, a 2.5s clip as 4s). **Asynchronous.** Returns a job `id` (the video is not in this response). Poll [`GET /v1/lip-sync/{id}`](/api-reference/lip-sync/get-lip-sync-job-status) until `status` is `succeeded` — the video URL is in that response's `video_url`. Examples, sample output and pricing: [OmniHuman 2.0](https://budgetpixel.com/models/omni-human-2.0) ## OpenAPI ````yaml /openapi.yaml post /lip-sync/omni-human-2.0 openapi: 3.1.0 info: contact: email: support@budgetpixel.com name: BudgetPixel Support description: > The BudgetPixel developer API for programmatic image, video, music and sound-effect generation. Generation is **asynchronous**: you create a job, then poll its status until it reaches a terminal state (`succeeded` / `failed`). You are charged in credits only on success — never for failures, timeouts, or content blocked before generation. **Authentication.** All requests require an API key sent as a bearer token: Authorization: Bearer bpx_live_xxx Create and manage keys from your BudgetPixel account dashboard. The developer API is available on **every paid plan**. On the **Free** plan, API keys can call the free library searches only: `GET /v1/stock/images`, `GET /v1/stock/sound-effects` and `GET /v1/stock/music`. **Pricing.** API usage is metered in credits at each model's published price (see `GET /v1/models`), and your plan's model discounts and active promotions apply to API charges exactly as they do on the web — `POST /v1/cost` quotes your discounted price. Pro and Ultra plans include a daily free-models allowance (a shared pool of free generations per day across qualified image models such as FLUX 2 Klein and Qwen-Image) that covers API requests too — the standard price applies once the day's pool is used. Other promotional free daily generations remain web/app-only. Failed generations are never charged. **Rate limits.** Requests are limited per minute: **600 requests/min per API key** and **1200 requests/min per source IP** (defaults; subject to tuning). Every response carries `X-RateLimit-Limit`, `X-RateLimit-Remaining`, and `X-RateLimit-Reset` (seconds until the window resets). Exceeding a limit returns HTTP `429` with a `Retry-After` header — wait that long before retrying. Rejected requests still count against the window, so a tight retry loop keeps you limited; back off instead. Generation jobs additionally have a per-plan concurrency cap (the same one as the web workshop), independent of these request limits. `POST /v1/uploads` also has a dedicated **60 uploads/min per account** cap (it's free/unmetered) on top of these limits. title: BudgetPixel API version: '2026-06-20' servers: - description: Production url: https://api.budgetpixel.com/v1 security: - ApiKeyAuth: [] tags: - description: Account and credit balance name: Account - description: Discover available models and pricing name: Models - description: Upload input media for image/video generation name: Uploads - description: Image job status name: Images - description: FLUX image models name: Black Forest Labs - description: SeeDream image models name: Bytedance - description: Video job status name: Videos - description: Kuaishou Kling video models name: Kling - description: SeeDance video models name: ByteDance (SeeDance) - description: Music and sound-effect job status name: Audios - description: Music generation models name: Music - description: Text-to-sound-effect models (priced per second) name: Sound Effects - description: >- Image-to-3D models — a picture in, a textured 3D model (GLB, plus FBX/USDZ/STL on Meshy) out name: 3D Models - description: Format conversion for images, video, and audio name: Conversions - description: Publish posts to your BudgetPixel feed and enter clan themes name: Social - description: Content moderation — NSFW rating and CSAM detection name: Moderation - description: Content classification — music genre detection name: Classification - description: >- Search the free stock image library — available on every plan, including Free name: Stock Images - description: >- Search the free sound effect library — available on every plan, including Free name: Stock Sound Effects - description: >- Search the free background music library — available on every plan, including Free name: Stock Music - description: >- Turn a video into a depth map video to guide other video models with its structure and motion name: Depth Maps paths: /lip-sync/omni-human-2.0: post: tags: - Lip Sync summary: Lip sync with OmniHuman 2.0 description: >- BytePlus OmniHuman 2.0 — the newest OmniHuman: animates the person (or character/pet) in an image to speak the input audio, with synchronized lips, expression, body motion and camera movement you can direct with a prompt. 720p; audio up to 120 seconds. Priced per second of the input audio, rounded UP to whole seconds, with a 4-second minimum (84 credits/second — e.g. a 12.4s clip bills as 13s, a 2.5s clip as 4s). **Asynchronous.** Returns a job `id` (the video is not in this response). Poll [`GET /v1/lip-sync/{id}`](/api-reference/lip-sync/get-lip-sync-job-status) until `status` is `succeeded` — the video URL is in that response's `video_url`. Examples, sample output and pricing: [OmniHuman 2.0](https://budgetpixel.com/models/omni-human-2.0) operationId: createLipSync_omni_human_2_0 requestBody: content: application/json: schema: properties: audio: description: >- The speech/audio to lip-sync (mp3, wav or ogg, up to 120 seconds, max 15 MB; under 4 seconds is billed as 4). A public audio URL, a data URI, raw base64, or an uploaded-file URL from POST /v1/uploads. type: string x-bpx-media: audio image: description: >- The subject to animate — a human face/portrait, character, or pet. 300-6000 px a side, aspect ratio between 2:5 and 5:2. A public image URL, a data URI, raw base64, or an uploaded-file URL from POST /v1/uploads. jpg/png/webp. type: string x-bpx-media: image prompt: description: >- Optional text prompt to direct the scene, gestures and camera movement (Chinese, English, Japanese, Korean, Spanish or Indonesian). type: string required: - image - audio type: object required: true responses: '200': content: application/json: schema: $ref: '#/components/schemas/CreateMotionResponse' description: Job accepted. '400': $ref: '#/components/responses/BadRequest' '401': $ref: '#/components/responses/Unauthorized' '403': $ref: '#/components/responses/Forbidden' '429': $ref: '#/components/responses/TooManyRequests' components: schemas: CreateMotionResponse: properties: credits: description: Total price of this job (seconds x the model's per-second rate). type: integer id: description: Opaque job id (`mtn_...`) — use it to poll status. type: string message: type: string model: type: string seconds: description: Billed duration — the reference video's length, rounded up. type: integer status: $ref: '#/components/schemas/JobStatus' type: object JobStatus: description: Lifecycle state. `succeeded`/`failed`/`timeout` are terminal. enum: - pending - starting - processing - completing - succeeded - failed - timeout type: string Error: properties: error: properties: code: description: Stable machine-readable code. example: model_not_available type: string message: type: string type: description: Error category. example: invalid_request_error type: string required: - type - code - message type: object required: - error type: object ModerationBlocked: description: >- Returned (with HTTP 400) when the input content moderation gate blocks a generation request. The block is a property of the request's prompt or input media — reword the prompt or change the input and retry. Branch on `restriction_reason`, which is stable and machine-readable. properties: error: description: Human-readable explanation of the block. type: string restriction_reason: description: Stable machine-readable block reason. enum: - input_csam - input_explicit_adult - input_upload_nudity - input_celebrity_likeness - strict_model_nsfw type: string required: - error - restriction_reason type: object responses: BadRequest: content: application/json: schema: oneOf: - $ref: '#/components/schemas/Error' - $ref: '#/components/schemas/ModerationBlocked' description: >- The request was malformed, referenced an unavailable model, or was blocked by input content moderation (moderation blocks carry a `restriction_reason` — see ModerationBlocked). Unauthorized: content: application/json: schema: $ref: '#/components/schemas/Error' description: Missing or invalid API key. Forbidden: content: application/json: schema: $ref: '#/components/schemas/Error' description: >- Authenticated but not permitted (plan gate, ownership, account restriction). Content-moderation blocks are 400, not 403. TooManyRequests: content: application/json: schema: $ref: '#/components/schemas/Error' description: Rate or queue limit reached. Retry after a short delay. securitySchemes: ApiKeyAuth: bearerFormat: bpx_live_* description: 'API key as a bearer token: Authorization: Bearer bpx_live_xxx' scheme: bearer type: http ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.