Text-to-image and editing
Use /v1/images/generations for prompts and /v1/images/edits when input images are provided.
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ImageOpenAISave 20-30%
GPT Image 1.5 API
GPT Image 1.5 is exposed through Pixapi for high-quality image generation and editing with strong prompt adherence, text rendering, and commercial composition.
PopularText renderingText to imageImage to image
Pricing details
Transparent usage pricing with no hidden fees. Pay only for successful outputs.
Credits by quality
GPT Image 1.5 supports 1K output sizes only (1024x1024, 1536x1024, 1024x1536, or size=auto). Credits vary by quality. quality=auto is billed as high. Reference prices use OpenAI portrait/landscape rates.
RuleCreditsNotes
1K · low1 / imageSupported sizes: 1024x1024, 1536x1024, 1024x1536. size=auto defaults to 1K. Official portrait/landscape ~$0.013/image; savings ~23%.
1K · medium4 / imageOfficial portrait/landscape ~$0.050/image; savings ~20%.
1K · high / auto14 / imagequality=auto billed as high. Official portrait/landscape ~$0.200/image; savings ~30%.
* Final billing follows the actual model output and dashboard records.
gpt-image-1.5 API facts
These fields are the citable integration facts for this model page.
Canonical model idgpt-image-1.5
Provider shown on PixapiOpenAI
Supported capabilitiesText to image, Image to image
API endpointsPOST /v1/images/generations, POST /v1/async/images/generations, POST /v1/images/edits, POST /v1/async/images/edits
Required request fieldsmodel, prompt
Returned output fieldscreated, data[].url
Starting credit costfrom 1 Credit/image
gpt-image-1.5 professional API access
GPT Image 1.5
Pixapi connects gpt-image-1.5 from OpenAI behind one production-ready API contract, covering authentication, credit metering, response normalization, and dashboard visibility.
Get keygpt-image-1.5
Model ID
OpenAI
Provider
from 1 Credit/image
Starting cost
2
Capabilities
Model features
Production capabilities for builders who need reliable creative model access.
Prompt adherence
Generate commercially usable image assets where layout, subject detail, and readable text matter.
GPT Image 2 upgrade path
Move to gpt-image-2 when your workflow needs quality tiers, custom sizes, or larger outputs.
Unified API contract
Use GPT Image 1.5 without provider-specific account setup, signatures, or response mapping.
Enterprise stability
Redundant infrastructure, request tracing, and a 99.9% availability target for production traffic.
Fast asset delivery
Generated media can be stored and distributed through Pixapi's global delivery layer.
Credit billing
Track usage and remaining credits from one dashboard across your connected models.
Use cases
Typical workflows where teams connect this model through Pixapi.
Marketing visuals
Create hero images, campaign assets, and social graphics with consistent composition.
Product mockups
Generate polished product concepts and UI-adjacent visuals from short prompts.
Image editing workflows
Apply prompt-guided changes to input images through the editing endpoint.
Application integration
Embed GPT Image 1.5 in SaaS products, internal tools, automations, and user-facing workflows.
Batch production
Run high-volume creative jobs with consistent costs, retries, and operational visibility.
Quick start
Connect the model in minutes with the same API key and billing account.
Create an account
Sign up for Pixapi and open your developer dashboard.
Add credits
Recharge once and use the balance across supported models.
Generate a key
Create an API key, choose the model id, and send your first request.
Frequently asked questions
What model id should I use for GPT Image 1.5?
Use gpt-image-1.5. The GPT Image model options are gpt-image-1.5 and gpt-image-2.
When should I choose GPT Image 2?
Use gpt-image-2 when you need quality tiers, custom output sizes, or larger image outputs.
Does GPT Image 1.5 support editing?
Yes. Use /v1/images/edits with image URLs in the JSON image field.
How many credits does GPT Image 1.5 use?
GPT Image 1.5 is billed for 1K sizes only: low/medium/high is 1/4/14 credits per image. It does not support 2K or 4K outputs — use gpt-image-2 for larger sizes. quality=auto is billed as high.
