Bonsai ImagePrismML
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FLUX 3 Image KleinBlack Forest Labs
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Related Products
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About
Bonsai Image Ternary 4B MLX 2-bit is a ternary-weight text-to-image diffusion transformer deployment for Apple Silicon. It is built as a quality-oriented Bonsai Image variant, using ternary {−1, 0, +1} transformer weights with FP16 group-wise scaling in the matrix-heavy transformer layers, including Q/K/V projections, output projections, and MLP weights. The model reduces the FLUX.2 Klein 4B transformer from 7.75 GB FP16 to a 1.21 GB Bonsai Image transformer, a 6.4× smaller footprint, while keeping visual quality and prompt fidelity close to the original model. The Apple Silicon deployment payload is 3.88 GB, including the MLX 2-bit diffusion transformer, a 4-bit Qwen3-4B text encoder, and an FP16 Flux2 VAE. After prompt encoding, the text encoder is offloaded, so the denoising loop only keeps the compact transformer and VAE resident. The model uses a 4-step FlowMatchEuler sampler with guidance 1.0 and shift 3.0, with no CFG and no negative prompts required.
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About
FLUX 3 Image Klein is an image-generation model from Black Forest Labs for developers and creative teams. It creates images from text prompts and supports instruction-based image editing, reference-image guidance with up to 10 images, and output at resolutions up to 4K. The 5.6-billion-parameter model is available through the Black Forest Labs API and as downloadable weights for local inference. Base and step-distilled variants support different workflows, with additional quantized formats for local deployment. Use it for creative production, design exploration, prototyping, and image-generation features in applications. Local and commercial use are subject to the model license. API usage is charged per generated image, with pricing varying by resolution.
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Platforms Supported
Windows
Supported
Mac
Supported
Linux
Supported
Cloud
Not Supported
On-Premises
Supported
iPhone
Supported
iPad
Supported
Android
Supported
Chromebook
Not Supported
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Platforms Supported
Windows
Not Supported
Mac
Not Supported
Linux
Not Supported
Cloud
Supported
On-Premises
Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Audience
Apple Silicon developers building private local image-generation apps that need compact diffusion models
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Audience
Developers, creative professionals, and organizations seeking image generation and editing capabilities for applications or local workflows.
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Not Supported
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API
Offers API
Supported
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API
Offers API
Supported
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Screenshots and Videos |
Screenshots and VideosNo images available
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Pricing
No information available.
Free Version
Not Supported
Free Trial
Not Supported
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Pricing
$0.009/1K image
API use is pay-as-you-go, starting at $0.009 per 1K-resolution image; charges vary by image resolution.
Free Version
Supported
Free Trial
Not Supported
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Reviews/
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Reviews/
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Supported
In Person
Not Supported
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Company InformationPrismML
Founded: 2026
United States
prismml.com
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Company InformationBlack Forest Labs
Founded: 2024
Germany
bfl.ai/blog/flux-3-image-klein
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Alternatives |
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Categories |
Categories |
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Integrations
ComfyUI
Not Supported
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