Price per image for OpenAI GPT Image, Google Nano Banana and Imagen, FLUX, Grok Imagine and Stable Diffusion APIs, with cost for 1,000 images.
Bottom line: the cheapest options are under 1¢ per image (gpt-image-1-mini low, GPT Image 2 low, FLUX 3 Klein). 1,000 standard-quality images cost roughly $5–$50; 4K or top quality can cost $100–$600 per 1,000.
| Vendor | Model / quality | Per image | 1,000 images (cheapest setting) |
|---|---|---|---|
| OpenAI | gpt-image-1-mini (low / medium / high) | $0.005 / $0.011 / $0.036 | $5.00 |
| OpenAI | GPT Image 2 (low / medium / high, 1024²) | $0.006 / $0.053 / $0.211 | $6.00 |
| Black Forest Labs | FLUX 3 Image Klein (1K) | $0.009 | $9.00 |
| Imagen 4 Fast | $0.02 | $20.00 | |
| xAI | Grok Imagine image / quality | $0.02 / $0.05 | $20.00 |
| Stability AI | Stable Image Core / Ultra | $0.03 / $0.08 | $30.00 |
| Nano Banana 2.1 (1K / 2K / 4K) | $0.0336 / $0.0504 / $0.113 | $33.60 | |
| Black Forest Labs | FLUX 3 Image (1K / 4K) | $0.048 / $0.607 | $48.00 |
| Nano Banana Pro (1K–2K / 4K) | $0.134 / $0.24 | $134.00 |
List prices per generated image; prompt/input-image tokens, edits and upscales extra. Google batch mode halves its image prices.
Sources (checked 2026-10-31): OpenAI API pricing · Gemini API pricing · BFL pricing · xAI pricing · Stability AI pricing · Comparison: ai-atlas-tools
Last updated 2026-10-30 from live API prices.
At the lowest quality setting, gpt-image-1-mini from OpenAI at about $0.005 per image, followed by GPT Image 2 low and FLUX 3 Klein (under 1¢).
About $5–$10 at the cheapest settings, $30–$55 at standard quality, and $100+ for top quality or 4K.
At 1K, Nano Banana 2.1 ($0.0336) is cheaper than GPT Image 2 medium ($0.053) but pricier than GPT Image 2 low ($0.006).
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