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fix: harden custom image generation config

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Maintainer edit: require providers.custom.apiBase before making custom image requests and allow unauthenticated local endpoints by omitting Authorization when no apiKey is configured.
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chengyongru
2026-06-05 15:56:03 +08:00
committed by Xubin Ren
parent 748b28da01
commit ae17a79bdf
3 changed files with 28 additions and 12 deletions
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docs/image-generation.md
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@@ -108,7 +108,7 @@ Configure:
}
```
The `apiBase` is required. The provider sends requests to `{apiBase}/images/generations` using the OpenAI Images API format with `response_format: "b64_json"`.
The `apiBase` is required. The provider sends requests to `{apiBase}/images/generations` using the OpenAI Images API format with `response_format: "b64_json"`. The `apiKey` is optional for local or unauthenticated endpoints.
### AIHubMix
@@ -350,7 +350,7 @@ Use the reference image. Keep the same robot and composition, change the palette
|---------|-------|
| `generate_image` is not available | Set `tools.imageGeneration.enabled` to `true` and restart the gateway |
| Missing API key error | Configure `providers.<provider>.apiKey`; if using `${VAR_NAME}`, confirm the environment variable is visible to the gateway process |
| `unsupported image generation provider` | Use `openrouter`, `aihubmix`, `minimax`, `gemini`, `ollama`, `stepfun`, or `zhipu` |
| `unsupported image generation provider` | Use `openrouter`, `custom`, `aihubmix`, `minimax`, `gemini`, `ollama`, `stepfun`, or `zhipu` |
| AIHubMix says `Incorrect model ID` | Use `model: "gpt-image-2-free"`; nanobot expands it to the required `openai/gpt-image-2-free` model path internally |
| Generation times out | Try a smaller/default image size, set AIHubMix `extraBody.quality` to `"low"`, or retry later |
| Reference image rejected | Reference image paths must be inside the workspace or nanobot media directory and must be valid image files |