Nano Banana Pro (Google's Gemini 3 Pro Image model) is the new top of LMArena. It is also priced per image, and at any real volume that adds up. Gathos is flat $18/month unlimited. Here is the honest comparison.
As of April 2026. Pulled from each product's public pricing page. We update this page quarterly.
| Monthly volume | Nano Banana Pro (via Gemini API) | Gathos | Savings with Gathos |
|---|---|---|---|
| 100 images (1K-2K res) | $13.40 ($0.134/img) | $18 (also includes TTS) | -$4.60 (NB Pro cheaper) |
| 500 images | $67 | $18 | $49/month |
| 2,000 images | $268 | $18 | $250/month |
| 10,000 images | $1,340 | $18 (fair-use window) | $1,322/month |
| Per-image cost at 2k/mo | $0.134 | $0.009 | 93% cheaper |
| 4K resolution surcharge | $0.24/img | Same flat $18 | Effectively free at 4K |
| Feature | Nano Banana Pro | Gathos |
|---|---|---|
| Top of LMArena | Yes (#1 as of Apr 2026) | No (top 10) |
| 4K resolution | Yes ($0.24/image) | Yes (same flat $18) |
| Text-in-image quality | Strong | Strong (model tuned for typography) |
| Pricing model | Per-image (Gemini API) | Flat $18/month |
| TTS / voice cloning bundled | No (separate Gemini TTS billing) | Yes (600+ languages) |
| Free tier | Limited via Vertex AI free credits | 7-day free trial, no card |
| Best for | Low-volume, top-quality single shots | Mid to high volume, predictable bills |
| Cost surprise risk | High (per-image meter) | Bounded (6-hour window cap) |
| Agent integrations | Via Gemini SDK / Vertex | Pre-built skills for Claude Code, Cursor, Windsurf, Gemini CLI |
"We tested Nano Banana Pro on 50 SKUs for a holiday catalog. Quality was excellent. Bill was $134 for one batch. We needed three batches plus iteration, so the projected monthly was $400-600. Moved to Gathos. Quality is roughly 90% as polished and we now run 8 catalogs a month for a flat $18. Nano Banana Pro is what we use for hero shots that go on the homepage. Everything else is Gathos."
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No credit card. Cancel anytime. Flat $18/month if you keep it.