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FLUX 3 Image now available on AI Gateway

·2026.10.05 09:00

Key point

The model supports up to ten reference images for editing and five resolution tiers up to 4K.

Details

FLUX 3 Image from Black Forest Labs is now available on AI Gateway, allowing users to generate images from text or edit existing ones using a single API key without needing a separate Black Forest Labs account.

The model supports up to ten reference images for tasks such as editing, combining subjects, or changing composition. It offers five resolution tiers ranging from 768 × 768 to 4K, with support for square, portrait, and landscape aspect ratios.

To use the model, set the AI_GATEWAY_API_KEY and use bfl/flux-3-image as the model ID in AI SDK 7 or later. Image generation is performed by calling generateImage with a text prompt, while editing requires passing the image in prompt.images along with an instruction. The model is also accessible via the terminal using AI CLI with the same credentials.

apiimage-generationai-gatewayai-sdkblack-forest-labsflux-3-image
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