GPT-image-2 AI Image API

GPT Image 2 is OpenAI's image-generation model. OpenAI documents image generation and editing with flexible sizes; Flatkey exposes the image routes and request controls shown below.

Text to ImageReference-guided ImageImage Editing
Provider
OpenAI
Flatkey price
$0.0066/ image-40%$0.011/ image
Generator setup · Playground (edit before sign-up)

Input

PromptCheck more831 / 10000
Quick Prompts
Reference Images
Start generating

Output

Preview
Image preview

Request summary

Endpoint
POST /v1/images/generations
Model ID
GPT-image-2
Aspect ratio
4:5
Resolution
1024x1024
Quality
high
Outputs
1

Preview only. Sign in to submit this request to Flatkey.

Request preview
{
  "model": "gpt-image-2",
  "prompt": "围绕{argument name=\"主题\" default=\"早安+问候+GOOD MORNING+城市+金句+天气+2026-08-10\"}生成具有平面海报秩序与真实焦点形象的设计:先以一块占据上部的大面积鲜明高明度色场建立开阔留白,再在下部接入一块近乎等量、低饱和的浅色纸面区域,形成干净明确的水平色域交界;让主题的核心形态被转译成两组超大、低细节、厚重圆润的浅色字符化图形,横跨交界线并向左右边缘出血,保留清晰的内部空腔、粗细对比与被边界裁断的切口,图形不是装饰而是背景中的尺度标尺和视觉骨架。把主题主体或核心对象压缩为中小尺度的具象焦点,放在交界附近,局部遮挡巨型图形,使前景对象、图形轮廓与留白发生明确的前后穿插;焦点对象以自然摄影或高度具象的质感表现,保留真实表面细节、柔和的侧上方光线、接地的短而松散的投影,以及不喧宾夺主的中性深色层次。左侧靠近交界的区域放置主题相关的两行短标题,使用粗重、紧凑、几何感明确的无衬线大写字形,行距偏紧、字块整齐左对齐,以黑色或主题最深结构色形成小面积强锚点;在巨型图形上缘两侧加入极小号、宽字距的元信息与编号式短标签,形成稀疏的编辑设计节奏,但文字只承担秩序、尺度和信息提示,不复制固定文案。颜色由主题语义决定色相与材质来源,但维持高明度高纯度主色场对柔和浅底的面积、明度、饱和度和情绪张力关系,巨型图形使用比浅底更醒目或更中性的浅色,深色文字与焦点阴影只占少量;主题色温改变时仍保持大色块对比、清洁边界和有限强调色,不把颜色平均铺满。整体像在哑光纸上进行干净的平面印刷,纸张有细微均匀纤维与颗粒,浅底和色场存在轻微密度不匀,实拍对象边缘与印刷图形边缘清楚但不过度锐利,色块交界保持利落,避免厚重做旧、泛黄、脏污、额外装饰和现代渐变;让背景留白、巨型图形、短标题、微型标签、焦点对象和接地阴影共同形成从大色场到文字再到主体的阅读路径,若去掉图形遮挡、色域交界或尺度反差,画面应立即失去这种克制而有张力的设计识别度。",
  "n": 1,
  "size": "1024x1024",
  "quality": "high",
  "output_format": "png",
  "background": "opaque",
  "moderation": "auto"
}

Performance

GPT Image 2 API performance and availability

Live Flatkey request telemetry appears here when enough image-generation traffic is available.

Avg. provider uptime
—
last 30 days
Latency
—
last 30 days
Requests
—
30-day window
Successful inference trend
Not enough data yet

Activity

GPT Image 2 API usage and generation activity

This chart reflects live Flatkey generation requests and remains unreported until enough traffic is collected.

Requests
—
30-day window
Latency
—
last 30 days
Uptime
—
last 30 days
Successful inference trendActivity
Not enough data yet

Pricing

GPT-image-2 Pricing

GPT-image-2 pricing here follows the current Flatkey catalog unit, not an assumed OpenAI direct tariff. Set image size, quality and output count before estimating cost. For edits, supply reference images and describe what must stay unchanged.

Flatkey price

Price / image

Live catalog model
$0.0066/ image$0.011/ image
Price / image
$0.0066/ image$0.011/ image
Try a prompt
Shared balance

Add credits

Add credits

Use the same Flatkey balance and API key across image, video, audio, and text models.

Model catalog
Model Type
Text to Image
API
/v1/images/generations
Billing basis
image
Outputs
1–10

GPT Image 2 image generation and editing capabilities

Use the documented image workflows for new visuals, reference-led edits, and production-ready creative variants.

Text-to-image creation

Generate new product, editorial, and campaign visuals from a structured natural-language prompt.

Reference-based editing

Supply an image input to revise an existing visual while preserving important subject and composition details.

Flexible image composition

Create square, portrait, or landscape assets with flexible image sizes for different placements and channels.

High-fidelity visual input

Combine text and image context in one workflow for richer visual direction; audio and video inputs are not supported by this model.

Compare

GPT Image 2 and GPT Image 1: image API controls

GPT Image 1 values are not verified in this fact set, so only documented GPT Image 2 fields are shown.

CapabilityGPT Image 1GPT Image 2
EndpointsUnknown here/v1/images/generations; /v1/images/edits
SizesUnknown here1024x1024, 1536x1024, 1024x1536, auto
FormatsUnknown herePNG, JPEG, WebP
Quality/background/moderationUnknown hereDocumented above
Image quality rankingNot assertedNot asserted

Choose the right request before you integrate

Review the supported workflows, live cost for the current setup, and the exact parameter contract used by Flatkey.

Live cost estimate

Calculated from the current Playground settings and the live catalog rate when a fixed unit price is available.

Current setup
1024x1024 · high · 1×
Live rate
$0.0066 / image
Estimated request
$0.0066

The final charge follows the submitted request and your account group. Token-priced or tiered requests cannot be reduced to one fixed estimate.

Workflows and Model ID

Use only the workflows marked available. Flatkey keeps one public model ID while the request body selects the input workflow.

Available

Text to Image

Generate a new image from a text prompt and output controls.

Model ID
gpt-image-2
Endpoint
/v1/images/generations
Available

Reference-guided Image

Use reference images for edits, variations, or identity and composition guidance.

Model ID
gpt-image-2
Endpoint
/v1/images/generations

Parameter compatibility

These values come from the same model configuration used by the Playground and request preview.

nImages
Accepted

1–10

Default: 1
sizeSize
Accepted

1024x1024 · 1536x1024 · 1024x1536 · auto

Default: 1024x1024
qualityQuality
Accepted

auto · high · medium · low

Default: high
output_formatOutput format
Accepted

png · jpeg · webp

Default: png
backgroundBackground
Accepted

opaque · auto

Default: opaque
moderationModeration
Accepted

auto · low

Default: auto
imageReference limit
Accepted

4 files

Endpoint: /v1/images/generations

From first test to production

Use the same request contract in the Playground and API, then handle validation, balance, task state, and output retrieval explicitly.

Request lifecycle

  1. 1

    Validate the model, prompt, references, and output settings.

  2. 2

    POST the image request with the documented fields.

  3. 3

    Read the generated output or asynchronous task result returned by the route.

  4. 4

    Store the generated file and request metadata in your own workflow.

Production checks

Parameter validation

Reject unsupported sizes, durations, ratios, formats, or reference counts before submitting.

Authentication and balance

Handle invalid keys, insufficient balance, rate limits, and account-group pricing separately.

Input or policy rejection

Surface the rejected prompt or asset clearly so the user can replace only the failing input.

Task failure or timeout

Keep the task ID, use bounded retries, and never treat a timeout as a successful generation.

Prompt library

GPT Image 2 prompt examples for product and marketing visuals

Start with a concrete subject, composition, output size, and brand constraint; adjust the request fields separately.

Game UI interaction and equipment switching
Game UI interaction and equipment switching

Generated with Image 2

Scene: A 16:9 sci-fi game loadout screen in a blue-purple spaceship hangar. A female armored character stands centered with a glowing violet rifle; armor slots line the left, three weapon slots line the right, and the lower slot is highlighted. Keep the HUD hierarchy, pose, lighting, and equipment geometry fixed for an exact equipment-switch frame. No readable words, logos, invented stats, or watermark. Composition and rendering: Deliver one 16:9 game-interface keyframe. Separate the character, held equipment and HUD into clear depth layers; keep slot spacing and icon scale consistent, with the selected item visually dominant. Preserve the scene-specific game art style. Let material edges catch the existing light without letting interface glow obscure the silhouette. Keep all equipment fully inside the frame. Avoid: warped perspective, malformed anatomy, merged objects, inconsistent shadows, excessive sharpening and watermarks. Follow the scene-specific text and branding restrictions above.

Create similar
Live sports broadcast simulation
Live sports broadcast simulation

Generated with Image 2

Scene: A rainy night soccer broadcast frame under bright stadium floodlights. A black-uniform player strikes the ball while two white-uniform defenders close in, with the goal and a blurred crowd behind. Keep the broadcast camera angle, blank blue score bars, spray, and motion blur consistent; leave overlays abstract and text-free. No real teams, athletes, logos, or watermark. Composition and rendering: Deliver one 16:9 broadcast still at the decisive instant. Use coherent perspective for the playing surface and equipment, readable separation between competitors, and a softer crowd behind the action. Keep the principal subject sharp, with directional blur limited to fast extremities and spray. Preserve the specified broadcast angle and reserve overlay areas clear of the action. Avoid: warped perspective, malformed anatomy, merged objects, inconsistent shadows, excessive sharpening and watermarks. Follow the scene-specific text and branding restrictions above.

Create similar
Brand TVC and seamless ecommerce showcase
Brand TVC and seamless ecommerce showcase

Generated with Image 2

Scene: A closed matte-black square smartwatch with a black strap rests on a wet glossy black tabletop. Water droplets catch a cool blue rim light and a soft reflection sits beneath the watch. Use a low three-quarter product camera and preserve the case, strap, highlights, and empty dark background. No readable branding, extra products, hands, or watermark. Composition and rendering: Deliver one 16:9 commercial product still. Keep the complete product silhouette inside generous crop-safe margins. Resolve edges, seams and material transitions precisely; shape highlights to describe volume without clipping bright surfaces or crushing dark details. Align reflections with the object and light source. Retain the stated camera angle and existing negative space; add no decorative props. Avoid: warped perspective, malformed anatomy, merged objects, inconsistent shadows, excessive sharpening and watermarks. Follow the scene-specific text and branding restrictions above.

Create similar
Cinematic character and storyboard direction
Cinematic character and storyboard direction

Generated with Image 2

Scene: On a rain-soaked observatory roof at sunrise, a lone figure in a long dark coat walks toward a large telescope beside an open dome. Wet stone reflects the warm doorway light; cloud-covered mountains sit beyond. Hold the screen direction and end on the telescope and figure in the same wide composition. No readable text, logos, or watermark. Composition and rendering: Deliver one 16:9 storyboard keyframe, not a collage or an action sequence. Separate foreground, character plane and background through the existing light and atmospheric depth. Keep the stated pose and eyelines readable, and retain environmental landmarks for continuity. Match the described photographic, illustrated or puppet medium; give fabric and surfaces texture appropriate to that medium. Avoid: warped perspective, malformed anatomy, merged objects, inconsistent shadows, excessive sharpening and watermarks. Follow the scene-specific text and branding restrictions above.

Create similar
Comedy sketch and physical storytelling
Comedy sketch and physical storytelling

Generated with Image 2

Scene: In a bright home kitchen, a surprised cook in a blue shirt and cream apron reaches toward pancakes, a frying pan, flour, bowl, and whisk suspended midair. Freeze the comic cause-and-effect moment with believable weight, warm daylight, and a clear path for each object. No injury, logos, readable words, or watermark. Composition and rendering: Deliver one 16:9 physical-comedy still at the described instant. Make the cause of the gag readable through body balance, grip and object spacing. Separate the reaction from the airborne props; retain believable gravity and contact points. Keep the face and important props sharp, with only restrained directional blur on fast edges. Preserve the stated lighting and room or stage layout. Avoid: warped perspective, malformed anatomy, merged objects, inconsistent shadows, excessive sharpening and watermarks. Follow the scene-specific text and branding restrictions above.

Create similar
Historical photo restoration and revival
Historical photo restoration and revival

Generated with Image 2

Scene: A rainy period harbor platform shelters people in era-appropriate coats and umbrellas as a vintage green tram arrives on wet tracks. Wooden waterfront buildings and misty mountains sit behind the reflections. Preserve the historical clothing, tram shape, rain direction, and stable wide composition; no readable signage, logos, or watermark. Composition and restoration: Deliver one 16:9 archival-style still. Preserve the original framing, period-specific construction and restrained tonal range; retain monochrome, sepia or faded color as described. Recover modest detail in faces, clothing and architecture without synthetic sharpening. Keep fine grain and authentic aging consistent across the frame; repair damage without replacing historical features. Avoid: warped perspective, malformed anatomy, merged objects, inconsistent shadows, excessive sharpening and watermarks. Follow the scene-specific text and branding restrictions above.

Create similar

Why use Flatkey for GPT Image 2?

A repeatable GPT Image 2 workflow for product images

Keep image controls and image-input token dimensions together so a prompt test can become a reproducible API request.

All documented controls in one place

Set n, size, quality, output format, background, and moderation before you hand the request to the console.

Image input stays explicit

The catalog exposes token and image-input dimensions; this is not a separate fee for output pixel size, and the final amount depends on request and usage fields.

Marketing-ready starting points

Use product, ad, and storyboard examples as editable starting prompts rather than generic image filler.

No unsupported promises

The page does not promise transparent output, free generation, or a fixed per-image price when those facts are not verified.

API

GPT-image-2 API

Four ways in, all on the same key and the same model catalog. Pick one to see a runnable example.

Call any model with an OpenAI-compatible API. Copy a ready-to-run example for your model and language.
Use the OpenAI SDK you already know — with Flatkey as the gateway.
Generate images and videos from your terminal. Let your AI assistant drive the workflow.
Connect your coding agent with one command, then use Flatkey from your existing projects.
curl https://router.flatkey.ai/v1/images/generations \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer sk-***" \
  -d '{"model":"gpt-image-2","prompt":"Create a high-quality product image with GPT-image-2: clean composition, precise lighting, strong subject focus, and realistic detail.","n":1,"size":"1024x1024","quality":"high","output_format":"png","background":"opaque","moderation":"auto"}'
Docs

FAQ

GPT Image 2 API
pricing and prompt questions

Answers about GPT Image 2 API access, image-generation fields, token and image-input pricing, formats, and background behavior.

What is GPT Image 2?
GPT Image 2 is the OpenAI image model available through /v1/images/generations.
How do I access GPT Image 2?
Configure a request, then use the normal Flatkey account and API-key flow.
What are the GPT Image 2 API endpoints?
Use /v1/images/generations for new images or /v1/images/edits for image edits with model ID gpt-image-2.
How much does GPT Image 2 cost?
Price / image: $0.0066 / image. GPT-image-2 pricing here follows the current Flatkey catalog unit, not an assumed OpenAI direct tariff. Set image size, quality and output count before estimating cost. For edits, supply reference images and describe what must stay unchanged.
What sizes and formats are supported?
Flatkey presets are 1024x1024, 1536x1024, 1024x1536, and auto. OpenAI documents a wider size range; PNG, JPEG, and WebP are listed here, with transparent output requiring PNG or WebP upstream.
Can GPT Image 2 create transparent backgrounds?
Yes, OpenAI's image guide documents gpt-image-2 preview support for background=transparent with PNG or WebP. The Flatkey route may expose only the controls shown in its current request form, so verify the live request before relying on transparency.
Is GPT Image 2 free or available without signup?
Free or no-signup generation is not verified. Use the normal Flatkey access flow and dated pricing block.