Compare · Image
Google Nano Banana 2 vs Sperid Labs Iris-3B
Specs, pricing, and capabilities side by side, plus outputs generated from identical prompts, so the only variable between the columns is the model.
Cloud
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Ultra-fast image generation model optimised for speed and creative output.
Learn more about Nano Banana 2 →Local
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Sperid Labs' 3B image model, running fully offline on your own machine. It generates directly in pixel space with no VAE, and needs no API key or network once the weights are downloaded.
Learn more about Iris-3B →Overview
Creator
Google
Sperid Labs
Released
Feb 2026
Oct 2026
Available on
RunwareOpenRouterReplicateGoogle
GGML
Model ID
nano-banana-2
sdcpp:iris-3b
Specs
Pricing
$0.067 per image
Free, runs on your hardware
Max resolution
4K
-
Aspect ratios
1:1, 16:9, 9:16 +11 more
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Image-to-image
Up to 14 reference images
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Output formats
PNG, JPEG, WebP
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Runs locally
Supported OS
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macOS, Windows, Linux
Minimum machine
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Local image generation · 32 GB+ RAM · 16 GB free disk · GPU strongly recommended
Download size
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13 GB
Samples
Product still lifeMaterials, reflections, macro detail
PromptProduct still life of a brushed-titanium espresso tamper standing on wet black slate, a scatter of coffee beans around it. Single hard light source from the upper right casting a crisp shadow, cool grey studio background, macro detail on the metal grain and the water droplets.
Download google-nano-banana-2-product.jpg
Download speridlabs-iris-3b-product.jpg
Studio portraitSkin texture, lighting, shallow depth of field
PromptEditorial studio portrait of a woman in her thirties with short dark curly hair, wearing a charcoal wool blazer over a white shirt. Soft key light from the left, subtle rim light, seamless deep-teal backdrop. Shot on 85mm at f/2, natural skin texture, catchlights in the eyes, shallow depth of field.
Download google-nano-banana-2-portrait.jpg
Download speridlabs-iris-3b-portrait.jpg
Typographic posterText rendering, layout, flat colour
PromptMinimalist Swiss-style concert poster on off-white paper. Large bold sans-serif headline reading "NIGHT SIGNAL" stacked over a thin rule, smaller caption below reading "LIVE - SEPT 14 - HALL C". A single geometric orange semicircle in the lower third, generous white space, printed-ink texture.
Download google-nano-banana-2-poster.jpg
Download speridlabs-iris-3b-poster.jpg
Differs from the promptThe headline reads "N.G b'' ∂iᴎᴍ\"; the prompt asked for "NIGHT SIGNAL".
Every sample is the model’s first result for the shared scene prompt (no cherry-picking), generated via Runware or Replicate. Hover a copy icon to read the full prompt.
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