Nano Banana 2 (Gemini 3.1 Flash Image) Cost
Nano Banana 2 (Gemini 3.1 Flash Image) costs $0.067 per 1024×1024 image (Google). This page compares it against the cheapest other production-tier model, and against a Midjourney subscription at your volume.
For teams generating images at volume — computes the fair same-tier price comparison and the exact subscription-vs-API break-even, not a 'this model is cheap/expensive' guess across mismatched quality tiers.
Image prices hand-verified against official provider pages
01 Model + volume
02 Same-tier price check
2.2× the cheapest production-tier option — $55.50/mo available (55%).
03 Subscription vs API
The API still wins vs Midjourney Pro ($60.00/mo) by $9.75/mo.
Related cost calculators
Image prices hand-verified (checked 2026-07-13), re-audited quarterly — image-gen prices move faster than LLM text prices: OpenAI image generation pricing · Google Gemini API pricing · Black Forest Labs pricing · Midjourney plan comparison. Midjourney images/month is a derived estimate (~60/fast-GPU-hour), not an official per-image figure. All math runs in your browser.
How the math works
Nano Banana 2 (Gemini 3.1 Flash Image) (Google) costs $0.067 per 1024×1024 image at standard rates — but that number alone doesn't tell you if it's a good price. Nano Banana 2 (Gemini 3.1 Flash Image) is a **production**-tier model; the fair comparison is against other production-tier models, not a draft model against a premium one (draft-to-premium price gaps run up to 35× within a single provider's own lineup).
Same-baseline check: the cheapest production-tier model available is FLUX.2 pro at $0.03/image. At 1,500 images/month, switching to it would save $55.50/month (55%) — Nano Banana 2 (Gemini 3.1 Flash Image) costs 2.2× what the cheapest production-tier option costs, for whatever quality difference justifies it.
Separately: Midjourney has no API — it's subscription-only, with a fixed monthly fee and an included "fast" image quota, the opposite cost shape from pay-per-image APIs. The API still wins here: $50.25/mo vs $60.00/mo for Midjourney Pro, and you keep programmatic control.
Same baseline, one identity: API spend ($50.25/mo) minus the covering Midjourney plan ($60.00/mo) = −$9.75 — whichever number is smaller is the real monthly cost, not whichever one you happened to default to.
Prices hand-verified against each provider's official pricing page (checked 2026-07-13), re-audited quarterly — image-gen prices move faster than text-token prices. Midjourney's fast-image quota is published in GPU-hours; the images/month figure here is a derived estimate (~60 images per fast GPU-hour, Midjourney's own commonly-cited ballpark), not itself an official per-image number.
Frequently asked questions
Is Nano Banana 2 (Gemini 3.1 Flash Image) a good price for Nano Banana 2 (Gemini 3.1 Flash Image) work?
Not the cheapest in its tier: FLUX.2 pro does the same production-tier job for $0.03/image vs $0.067/image — switching would save $55.50/month (55%) at 1,500 images/month, if quality holds on your prompts.
Should I use a pay-per-image API or a Midjourney subscription?
The API still wins here: $50.25/mo vs $60.00/mo for Midjourney Pro, and you keep programmatic control.
Why isn't the cheapest-looking model always the best deal?
Because a $0.006 draft-tier price and a $0.211 premium-tier price aren't answering the same question — they're different quality tiers, not competing options. The only fair comparison is within a tier: this page always compares Nano Banana 2 (Gemini 3.1 Flash Image) against FLUX.2 pro, the cheapest other production-tier model, never across tiers.
Does batch processing change which is cheaper?
Nano Banana 2 (Gemini 3.1 Flash Image) offers a 50% batch-API discount if generation can tolerate delay — that cuts this page's own monthly cost, but the same-tier comparison above uses standard (non-batch) prices since not every model in a tier offers batch pricing.
How was the Midjourney images/month figure calculated?
Midjourney publishes fast-generation quotas in GPU-hours (e.g. 30 hours for Midjourney Pro), not a direct image count. The images/month figures here are a derived estimate (~60 images per fast GPU-hour, a commonly-cited ballpark), not an official per-image number — treat them as approximate.
Are these prices current?
Hand-verified against each provider's official pricing page (checked 2026-07-13), re-audited quarterly since image-gen prices move faster than LLM text-token prices. All math runs client-side with tested code.