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Nano Banana 2.1 vs GPT Image 2.6 Flare: API price, context & features · api14

Google: Nano Banana 2.1 vs OpenAI: GPT Image 2.6 Flare

A side-by-side comparison of Google: Nano Banana 2.1 ($5.25 / 1M tokens) and OpenAI: GPT Image 2.6 Flare ($28.00 / 1M tokens) using current USD prices and capabilities from the api14 catalog. Both run through the same OpenAI-compatible API.

Specifications

	Google: Nano Banana 2.1	OpenAI: GPT Image 2.6 Flare
Provider	Google	OpenAI
Input	$5.25 / 1M tokens	$28.00 / 1M tokens
Output	$26.25 / 1M tokens	$28.00 / 1M tokens
Image output	$105.00 / 1M tokens	$105.00 / 1M tokens
Web search	$49.00 / 1K searches	$35.00 / 1K searches
Cache read	-	$7.00 / 1M tokens
Cache write	-	$35.00 / 1M tokens
Context window	65,536	400,000
Max output	58,982	360,000
Input	image, text	text, image
Output	image, text	image
Tool calling
Structured output
Reasoning control
Added	Oct 6, 2026	Nov 4, 2026

Key differences

Google: Nano Banana 2.1 is 81% cheaper on input tokens.
Google: Nano Banana 2.1 is 6% cheaper on output tokens.
OpenAI: GPT Image 2.6 Flare reads 6.1× more context (400,000 tokens).
Only Google: Nano Banana 2.1 supports tool calling.
Only Google: Nano Banana 2.1 supports reasoning effort control.

Switch with one string

Both models use the same endpoint and request shape. Change the model value from "google/gemini-nano-banana-2.1" to "openai/gpt-image-2.6-flare" and prompts, streaming and tools keep working.

Google: Nano Banana 2.1 details & playground →OpenAI: GPT Image 2.6 Flare details & playground →

import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://api14.com/api/v1",
  apiKey: process.env.API14_API_KEY,
});

const result = await client.images.generate({
  "model": "openai/gpt-image-2.6-flare",
  "prompt": "A minimalist product photo of a ceramic mug on a wooden table",
  "n": 1,
  "aspect_ratio": "1:1"
});
import { writeFile } from "node:fs/promises";
await writeFile("image.png", Buffer.from(result.data[0].b64_json, "base64"));

Google: Nano Banana 2.1 vs OpenAI: GPT Image 2.6 Flare

Specifications

Key differences

Switch with one string

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