Nano Banana 2.1

Nano Banana 2.1 Text-to-Image API on E2X — Lowest Price Globally

Nano Banana 2.1 is Google's updated image synthesis model, advancing the visual precision and instruction adherence of the Gemini image family. On E2X, we offer the generation endpoint google/nano-banana-2.1/text-to-image at the undisputed lowest price globally. With our active 50% global permanent discount, you generate at $0.03 at 1K, $0.04 at 2K, and $0.09 at native 4K — beating every major AI provider worldwide.

Working with existing visuals rather than starting from scratch? Nano Banana 2.1 edit-image runs the same updated architecture at the identical $0.03/$0.04/$0.09 discounted price, adding multi-image conditioning via image_urls.

Global Price Comparison: Why E2X Is the Cheapest Worldwide

Prices checked October 2026. On-demand public rates. With E2X's active 50% global discount, a single 1K call is just $0.03 compared to $0.15 on fal.ai, and 4K cinema rendering is $0.09 compared to $0.30.

Technical Specifications

Core Breakthrough Features

1. The Most Cost-Effective 4K in the Industry

At $0.09 per 4K image, E2X makes cinema-grade 4096×4096 generation genuinely affordable for high-volume commercial production. Competitors charge $0.30 per 4K call. You get photorealistic skin micro-textures, intricate architectural facades, and needle-sharp foreground focus for 70% less.

2. 15 Native Aspect Ratios

From panoramic billboard headers (8:1, 4:1, 21:9) to vertical social story formats (9:16, 1:4, 1:8), Nano Banana 2.1 eliminates post-crop distortion. The model composes directly into your target canvas format without stretching.

3. Dense Prompt Adherence & Multi-Subject Reasoning

With an expanded 32,000-character prompt capacity, the model maintains coherence across complex multi-subject interactions, nuanced lighting schemes, and exact material requests. Lettering and typography render sharply inside the frame.

API Request: Prompt to Finished Frame

Submit jobs using a single POST call to https://api.e2x.ai/v1/jobs/submit:

curl -X POST https://api.e2x.ai/v1/jobs/submit \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "google/nano-banana-2.1/text-to-image",
    "input": {
      "prompt": "Minimalist luxury perfume bottle on wet dark granite, dramatic rim lighting, fine water droplets, macro lens, 8k resolution, cinematic aesthetic",
      "aspect_ratio": "4:3",
      "resolution": "4K"
    }
  }'

Async Polling with JavaScript

const headers = {
  Authorization: `Bearer ${process.env.E2X_API_KEY}`,
  "Content-Type": "application/json",
};

const submitResponse = await fetch("https://api.e2x.ai/v1/jobs/submit", {
  method: "POST",
  headers,
  body: JSON.stringify({
    model: "google/nano-banana-2.1/text-to-image",
    input: {
      prompt: "Panoramic sci-fi orbital habitat with lush biosphere ring, cinematic lens flare, high dynamic range",
      aspect_ratio: "21:9",
      resolution: "4K",
    },
  }),
});
const { data } = await submitResponse.json();

let job;
do {
  await new Promise((resolve) => setTimeout(resolve, 3000));
  const pollResponse = await fetch(`https://api.e2x.ai/v1/jobs/${data.jobId}`, { headers });
  job = await pollResponse.json();
} while (job.data.status === "pending" || job.data.status === "processing");

if (job.data.status !== "completed") {
  throw new Error(job.data.error?.message || "Generation failed");
}
console.log("Result URL:", job.data.outputs[0].url);

Production Prompt Recipes

Recipe 1: Commercial Hero Packshot

• Aspect Ratio: 4:3 | Resolution: 4K ($0.09)
• Prompt: Studio commercial photograph of an artisanal cold brew glass bottle sitting on natural travertine stone. Soft morning window light from the left, delicate condensation beads on the amber glass, minimal Scandinavian background, 85mm f/1.8.

Recipe 2: Ultra-Wide Architectural Banner

• Aspect Ratio: 8:1 | Resolution: 4K ($0.09)
• Prompt: Ultra-panoramic skyline view of a futuristic sustainable metropolis at twilight. Tiered vertical gardens, glowing transit monorails, reflections across a central river, volumetric mist, clean architectural render.

Recipe 3: Expressive Character Concept

• Aspect Ratio: 9:16 | Resolution: 2K ($0.04)
• Prompt: Cinematic portrait of an astrophysicist in a high-tech observatory dome, warm starlight illuminating facial contours, shallow depth of field, authentic film grain, anamorphic bokeh.

Nano Banana Family Comparison

Frequently Asked Questions

Why is E2X the cheapest provider for Nano Banana 2.1 globally?

Through our direct infrastructure and an active 50% global discount, E2X charges only $0.03 at 1K, $0.04 at 2K, and $0.09 at 4K. Fal.ai and Replicate charge $0.15 for 1K and $0.30 for 4K.

How does the 50% global discount work?

The discount is applied platform-wide to all API calls automatically. No coupon codes or tier commitments are required.

What are the exact prices by resolution?

1K: $0.03 (list $0.06) | 2K: $0.04 (list $0.08) | 4K: $0.09 (list $0.18).

The 50% discount is permanent, not a launch promotion. We will keep it in place as long as Google does not change its pricing. List prices are $0.06 / $0.08 / $0.18; you pay $0.03 / $0.04 / $0.09 at 1K / 2K / 4K, for generation and editing alike.