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Choosing the Right Model

Use CaseRecommended Model
Photorealistic photosflux-1.1-pro or gpt-image-1.5
Product shotsflux-1.1-pro
Artistic / illustrationmidjourney-v6 or midjourney-turbo
Quick generationdall-e-3 (5–13 tkn)
High-res 2K outputnano-banana-pro
Image editing / inpaintingflux-kontext-pro

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Prompt Writing Tips

Be specific: Instead of "a car", write "a red 1967 Ford Mustang on Route 66 at sunset, wide angle, film grain" Use style references: cinematic, studio photography, oil painting, 8k, photorealistic, bokeh Negative prompts (Flux, SD): Use them to remove common artifacts: "blurry, low quality, distorted hands, watermark, text"

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Aspect Ratio Guide

Use CaseSize
Social square1024x1024
Portrait / mobile768x1344 or 9:16
Landscape / banner1344x768 or 16:9
Story1024x1536

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Reproducible Results

Use the seed parameter to get the same image with the same prompt: 
result = requests.post(
    "https://neuralbox.top/api/v2/generate",
    headers={"Authorization": "Bearer nb_YOUR_API_KEY"},
    json={
        "model": "flux-1.1-pro",
        "prompt": "Blue gradient abstract background",
        "seed": 12345
    }
)
# Same seed + same prompt = very similar output

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Token Costs

ModelTokens
photon-flash1
dall-e-35–13
flux-1.1-pro7
flux-kontext-pro7
midjourney-v614
midjourney-turbo28
gpt-image-1.51–21
sd-3.5-large12
recraft-v37
photon-13
nano-banana-pro7
nano-banana-pro-2k27
DALL-E 3 and GPT Image 1.5 charge more for non-square aspect ratios (up to 2×). Use Calculate Price to check exact cost.