Doubao Seedream 4.0 is a ByteDance Doubao model exposed on the Huzz API with a single Huzz key and one consistent, OpenAI-compatible interface. Capabilities: Image editing, Image generation. It supports streaming responses. Long-running jobs run asynchronously with polling. Call it at https://api.huzz.ai using Authorization: Bearer $HUZZ_API_KEY — no per-provider accounts or SDKs required.
FamilyCapabilitiesStreamingAsyncPricing
ByteDance DoubaoImage editing, Image generationYesYesUsage-based

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Endpoints

MethodPathCapability
POST/api/v3/doubao/doubao-seedream-4-0-250828/image-editImage editing
POST/api/v3/doubao/doubao-seedream-4-0-250828/text-to-imageImage generation

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Code samples

Authenticate with Authorization: Bearer $HUZZ_API_KEY — get a key at huzz.ai/register. 
curl https://api.huzz.ai/v1/images/generations \
  -H "Authorization: Bearer $HUZZ_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "doubao-seedream-4-0-250828", "prompt": "A serene mountain lake at dawn"}'
Long-running jobs return a prediction id. See Async predictions for the full submit-and-poll lifecycle.