// Cross-vendor image comparison

GPT Image 2.6 FlarevsNano Banana 2.1

GPTProto2026年11月5日更新

GPT Image 2.6 Flare (OpenAI) and Nano Banana 2.1 (Google). GPT Image 2.6 Flare is OpenAI's fast-iteration image model. Nano Banana 2.1 is Google's per-image model in the same catalog. The cards keep those billing units apart.

Read each card in its own unit. Flare shows text input and image output per 1M tokens. Nano Banana 2.1 shows the 1K and 4K image rates. Price a Flare call from the response usage, and price Nano Banana 2.1 from the size you request.

Try GPT Image 2.6 Flare on GPTProto GPTProto で Nano Banana 2.1 を試す

GPT Image 2.6 Flare↗OpenAI · gpt-image-2.6-flare

向いている用途OpenAI's image model for interactive generation and editing.

GPTProto catalog rate, list price struck through

Text input~~$5.00~~$4.75/M−5%

Image output~~$30.00~~$28.50/M−5%

モデルページを見る

Nano Banana 2.1↗Google · gemini-nano-banana-2.1

向いている用途Google's per-image model for generation and edits at 1K, 2K, and 4K.

GPTProto catalog rate, list price struck through

1K 画像~~$0.0336~~$0.02016/img−40%

4K 画像~~$0.113~~$0.0678/img−40%

モデルページを見る

// 並べて比較

GPT Image 2.6 Flare vs Nano Banana 2.1Catalog rates.

Each price is the text-to-image scene from the GPTProto catalog at request time. A token row and a per-image row stay on their own lines.

項目

GPT Image 2.6 Flare

Nano Banana 2.1

プロバイダ

OpenAI

Google

モデル ID

gpt-image-2.6-flare

gemini-nano-banana-2.1

Billing

Per token

Per image

カタログ掲載

November 5, 2026

2026年10月8日

可用性

Text input / 1M

$4.75~~$5.00~~ 公式定価

—

Image input / 1M

$7.60~~$8.00~~ 公式定価

—

Image output / 1M

$28.50~~$30.00~~ 公式定価

—

1K 画像

—

$0.02016~~$0.0336~~ 公式定価

2K 画像

—

$0.03024~~$0.0504~~ 公式定価

4K 画像

—

$0.0678~~$0.113~~ 公式定価

Catalog multiplier

0.95

0.6

Routes

テキストから画像画像編集

API の使い方

# Submit
curl --request POST "https://gptproto.com/api/v3/openai/gpt-image-2.6-flare/text-to-image" \
    --header "Authorization: Bearer $GPTPROTO_API_KEY" \
    --header "Content-Type: application/json" \
    --data '{
        "prompt": "A tiny origami fox sailing a teacup across a moonlit puddle",
        "n": null,
        "quality": "auto",
        "size": "auto",
        "enable_sync_mode": false,
        "response_format": "url"
    }'

# Result
curl --request GET "https://gptproto.com/api/v3/predictions/$result_id/result" \
    --header "Authorization: Bearer $GPTPROTO_API_KEY"

# Submit
curl --request POST "https://gptproto.com/api/v3/google/gemini-nano-banana-2.1/text-to-image" \
    --header "Authorization: Bearer $GPTPROTO_API_KEY" \
    --header "Content-Type: application/json" \
    --data '{
        "prompt": "A tiny origami fox sailing a teacup across a moonlit puddle",
        "aspect_ratio": "16:9",
        "size": "1k",
        "output_formart": "png",
        "enable_base64_output": false,
        "enable_sync_mode": false
    }'

# Result
curl --request GET "https://gptproto.com/api/v3/predictions/$result_id/result" \
    --header "Authorization: Bearer $GPTPROTO_API_KEY"

List price is the platform rate divided by the catalog price multiplier. The page does not turn a token rate into a cost per image.

List rate beside the GPTProto rate. Each row scales to its own list price.

公式GPTProto

GPT Image 2.6 FlareOpenAI

Text input / 1M$5.00

Text input / 1M−5%$4.75

Image input / 1M$8.00

Image input / 1M−5%$7.60

Image output / 1M$30.00

Image output / 1M−5%$28.50

Nano Banana 2.1Google

1K 画像$0.0336

1K 画像−40%$0.02016

2K 画像$0.0504

2K 画像−40%$0.03024

4K 画像$0.113

4K 画像−40%$0.0678

// Price

Two catalog rates.Two units.

GPT Image 2.6 Flare is billed per token. Nano Banana 2.1 is billed per image. The table is the catalog. The struck-through figure is the list price, and the bold figure is the GPTProto rate.

OpenAI's image guide says equal token rates can still produce a different cost per image, because quality and size change how many tokens a render uses. See Image generation. This catalog does not publish that token count, so the page leaves a per-image dollar amount for the token-billed model off the table. Price that call from the usage field on the response, then compare the total with the size row on the per-image model.

On this catalog, GPT Image 2.6 Sunburst lists the same text-input, image-input, and image-output rates. Read that pair on GPT Image 2.6 Sunburst vs Nano Banana Pro.

Google's two per-image models are on Nano Banana 2.1 vs Nano Banana Pro. The image-count calculator stays off this page because the two models here do not share a unit.

// チャージ

One balance.
Either model.

Top up once, then open the model you are calling. The rate on this page is the catalog rate for that model's unit.

$15

等額入金 · ボーナスなし

まず試す用。エンドポイントの確認と、新しいモデルの試し打ちに。

いちばん人気

$100

+4% ボーナスクレジット

個人の開発や、これから本番に出す小さなプロジェクト向け。

最大のお得 · +6%

$1,000

+6% ボーナスクレジット

本番の仕事を回しているチーム向け。割引済みの料金に、ボーナスが上乗せされます。

// Fit

Which jobeach model is for.

OpenAI describes Flare for fast iteration and Sunburst for detailed compositions. Google's two per-image models have their own page.

項目

GPT Image 2.6 Flare

Nano Banana 2.1

Catalog role

Fast iteration

Per-image generation

Price it from

Response token usage

1K, 2K, or 4K row

// Choose

Start from the joband the unit.

Pick the model whose unit you can price for the brief in front of you.

GPT Image 2.6 Flaregpt-image-2.6-flare

Fast iteration

You want the fast-iteration model OpenAI pairs with Images 2.6.
You can price the call from the token usage on the response.
You need text input, image input, and image output as separate catalog rates.

Open GPT Image 2.6 Flare

Nano Banana 2.1gemini-nano-banana-2.1

Per-image generation

You want a size price before the call returns.
The brief is a 1K, 2K, or 4K image on the Google row.
You are comparing a flat image price with a token-billed model.

Open Nano Banana 2.1

When both belong in the test

Run the same brief on both model pages when you need a token-billed render and a size-priced render. Keep each invoice on its own unit.

// Models

Same catalog.Different jobs.

Choose Flare when the work is fast iteration and you can settle the token total after the response. Choose Nano Banana 2.1 when you want the catalog price for a 1K, 2K, or 4K image before you call it.

OpenAI's Images 2.6 notes describe Flare for interactive generation and editing, and Sunburst for detailed compositions and edit consistency. Those notes are the vendor's description. This page does not add a latency or quality score of its own.

The rates above are the text-to-image scene. Check GPT Image 2.6 Flare and Nano Banana 2.1 before an edit call.

// How to read this

Use the rowthat matches the call.

A token rate and a per-image rate answer different questions. The token rate prices 1M tokens. The image rate prices one generated image at a named size. The page keeps those purchases on separate rows.

For the token-billed model, multiply the usage on the response by the matching row: text input, image input, or image output. For the per-image model, use the 1K, 2K, or 4K row for the size you send.

The bars under the table compare each row with its own list price. A full-width bar is the list rate. The shorter bar is the GPTProto rate for that same row.

// Next

Open the modelyou plan to call.

Start with GPT Image 2.6 Flare or Nano Banana 2.1. The other Images 2.6 pair is GPT Image 2.6 Sunburst vs Nano Banana Pro.

Open GPT Image 2.6 Flare Open Nano Banana 2.1

// よくある質問

Pricing questionsfor this pair.

Answers use the catalog rows above.

01Why are the prices in different units?+

GPT Image 2.6 Flare and Nano Banana 2.1 are sold on different catalog meters. One side is USD per 1M tokens. The other side is USD per image at 1K, 2K, and 4K. The table keeps those meters on separate rows.

02Which model is cheaper per image?+

The catalog does not publish how many tokens one GPT Image render uses, and that count changes with size and quality. Price the token-billed call from the usage field on the response. Price the Google call from the size row. Then compare those two totals for the brief you actually ran.

03Do Flare and Sunburst share a token rate?+

On this catalog request, Flare and Sunburst list the same text-input, image-input, and image-output rates. The difference on the two pages is the Google model beside them, and the job OpenAI describes for each Images 2.6 model.

04Does the card's discount apply to every row?+

Catalog multiplier is 0.95 for GPT Image 2.6 Flare and 0.6 for Nano Banana 2.1. The card percent is the gap between the list price and the GPTProto rate. This table is the text-to-image scene, so check the model page before an edit call.

// 利用者の声

私たちの言葉だけではない。利用者の声。

実在する公開アカウントの投稿です。ここにあるものは作られていません。

Blogstra

Reddit · r/Bloggers

#Routing

For a team already juggling DeepSeek, Kimi, Qwen, or other providers, a shared routing layer can be reasonable if it removes duplicated work and the fallback behavior is tested. GPTProto is one implementation of this approach.

X (Twitter) · @ChillaiKalan__

#Cost

I've been testing GPTProto recently, and it's honestly made my creative workflow much simpler. Instead of paying for multiple subscriptions, I can access several leading AI models from one place.

Sanskriti Naruka

X (Twitter) · @snskritinaruka

#Video

I turned this single prompt into a cinematic fantasy video using GPTProto. "Continuous 15-second cinematic shot, 4K resolution, hyper-realistic dark fantasy photorealism…"

Caden Flux

X (Twitter) · @Caden_Flux

#Video

I challenged myself to create a cinematic AI cooking short in just 15 seconds. I used GPTProto to bring the entire workflow together, from image generation to video, all in one place.

Zara

X (Twitter) · @ZaraIrahh

#Creative

Made with Seedance 2.0 + GPT Image 2 on GPTProto. A Pixar-style commercial with the perfect glow.

Many-Operation2625

Reddit · r/LLMDevs

#Integration

What worked for me was pointing the cloud connections at GPTProto so the frontend only sees one endpoint and I just change the model name to swap. I am not rebuilding a connection from scratch every time.

// ブログから

AI モデルガイド。実用的な API チュートリアル。

モデルの比較、API の設定、画像と動画の実務での使い方をまとめています。

記事をすべて見る →

// 始める

次の 1 億トークン、定価で払わなくていい。

ブラウザで画像や動画を作るか、API キーひとつでテキスト、画像、動画のモデルをアプリに入れられます。割引のあるモデルもここにあります。

✓OpenAI 互換
✓200以上のモデル
✓公式より 10–30% 安い
✓高い稼働率、自動フェイルオーバー

✓クリップボードにコピーしました