Openai Gpt Image 1.5 Text To Image

Playground

GPT Image 1.5 (T2I) is OpenAI’s fast, cost-efficient text-to-image generator powered by GPT-5 guidance. Create photorealistic shots, product renders, concept art, and stylized graphics from natural-language prompts (optionally conditioned with an image). Supports custom aspect ratios, seeds, negative prompts, hex color hints, and style presets. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.

Features

gpt-image-1.5

GPT Image 1.5 is a cost-efficient multimodal text-to-image generation model powered by OpenAI’s GPT image technology. It combines strong prompt understanding with optimized image synthesis to generate high-quality visuals from natural language — ideal for UI design, concept art, product mockups, and creative visualization.

🌟 Key Features

🧠 Strong Prompt Understanding Accurately interprets complex prompts, styles, and constraints to produce coherent, context-aware images.
🎨 Efficient Image Generation Generates polished, high-fidelity images with low latency and cost-friendly performance.
💡 Multimodal-Ready Foundation Built for workflows that benefit from both text guidance and visual reasoning.
💰 Cost-Effective at Scale Great for rapid iteration, A/B creative testing, and production pipelines.
🧩 UI/UX Friendly Outputs Performs well on clean compositions, modern design aesthetics, and structured layouts.

⚙️ Parameters

Parameter	Description
prompt*	Text description of the desired image (e.g., “street food market at night, photojournalism style…”).
size	Output size: 1024×1024, 1024×1536, or 1536×1024.
quality	Output quality tier: low / medium / high.

💡 Example Prompt

Street food market in Tokyo at night, chef tossing flaming wok with vegetables mid-air, steam rising, colorful paper lanterns overhead, motion blur on crowd in background, vibrant neon signs, photojournalism style

💰 Pricing

Reference table (total_price per image generated):

Quality	1024×1024	1024×1536 / 1536×1024
low	$0.009	$0.013
medium	$0.034	$0.051
high	$0.133	$0.200

🎯 Use Cases

UI / UX Design Concepts – Generate layouts, interface inspirations, and design directions.
Product & Marketing Visuals – Create campaign-ready images and fast mockups.
Creative Ideation – Explore styles, moodboards, and concept art quickly.
Education & Presentations – Produce illustrative visuals for decks, demos, and teaching materials.

Authentication

For authentication details, please refer to the Authentication Guide.

API Endpoints

Submit Task & Query Result


# Submit the task
curl --location --request POST "https://api.wavespeed.ai/api/v3/openai/gpt-image-1.5/text-to-image" \
--header "Content-Type: application/json" \
--header "Authorization: Bearer ${WAVESPEED_API_KEY}" \
--data-raw '{
    "size": "1024*1024",
    "quality": "medium",
    "enable_sync_mode": false,
    "enable_base64_output": false
}'

# Get the result
curl --location --request GET "https://api.wavespeed.ai/api/v3/predictions/${requestId}/result" \
--header "Authorization: Bearer ${WAVESPEED_API_KEY}"

Parameters

Task Submission Parameters

Request Parameters

Parameter	Type	Required	Default	Range	Description
prompt	string	Yes		-	The positive prompt for the generation.
size	string	No	1024*1024	10241024, 10241536, 1536*1024	The size of the generated media in pixels (width*height).
quality	string	No	medium	low, medium, high	The quality of the generated image.
enable_sync_mode	boolean	No	false	-	If set to true, the function will wait for the result to be generated and uploaded before returning the response. It allows you to get the result directly in the response. This property is only available through the API.
enable_base64_output	boolean	No	false	-	If enabled, the output will be encoded into a BASE64 string instead of a URL. This property is only available through the API.

Response Parameters

Parameter	Type	Description
code	integer	HTTP status code (e.g., 200 for success)
message	string	Status message (e.g., “success”)
data.id	string	Unique identifier for the prediction, Task Id
data.model	string	Model ID used for the prediction
data.outputs	array	Array of URLs to the generated content (empty when status is not `completed`)
data.urls	object	Object containing related API endpoints
data.urls.get	string	URL to retrieve the prediction result
data.has_nsfw_contents	array	Array of boolean values indicating NSFW detection for each output
data.status	string	Status of the task: `created`, `processing`, `completed`, or `failed`
data.created_at	string	ISO timestamp of when the request was created (e.g., “2023-04-01T12:34:56.789Z”)
data.error	string	Error message (empty if no error occurred)
data.timings	object	Object containing timing details
data.timings.inference	integer	Inference time in milliseconds

Result Request Parameters

Parameter	Type	Required	Default	Description
id	string	Yes	-	Task ID

Result Response Parameters

Parameter	Type	Description
code	integer	HTTP status code (e.g., 200 for success)
message	string	Status message (e.g., “success”)
data	object	The prediction data object containing all details
data.id	string	Unique identifier for the prediction, the ID of the prediction to get
data.model	string	Model ID used for the prediction
data.outputs	string	Array of URLs to the generated content (empty when status is not completed).
data.urls	object	Object containing related API endpoints
data.urls.get	string	URL to retrieve the prediction result
data.status	string	Status of the task: `created`, `processing`, `completed`, or `failed`
data.created_at	string	ISO timestamp of when the request was created (e.g., “2023-04-01T12:34:56.789Z”)
data.error	string	Error message (empty if no error occurred)
data.timings	object	Object containing timing details
data.timings.inference	integer	Inference time in milliseconds

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