NAI Diffusion 4.5 Curated is a NovelAI model exposed on the Huzz API with a single Huzz key and one consistent, OpenAI-compatible interface. Capabilities: Image-to-image, 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
NovelAIImage-to-image, Image generationYesYesUsage-based

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Endpoints

MethodPathCapability
POST/api/v3/novelai/nai-diffusion-4-5-curated/image-to-imageImage-to-image
POST/api/v3/novelai/nai-diffusion-4-5-curated/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": "nai-diffusion-4-5-curated", "prompt": "A serene mountain lake at dawn"}'
Long-running jobs return a prediction id. See Async predictions for the full submit-and-poll lifecycle.