Is 4oImageApi.io free?

4oImageApi.io offers a free tier with optional paid features.

4oImageApi.io

A third-party GPT-image-1-based image generation API with REST endpoints, callbacks, credits, and account usage controls.

Category:AI APIs

freemium

Last Updated 7/30/2026

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About 4oImageApi.io

4oImageApi.io is a third-party API service for building AI image generation into products and automation pipelines. Its official homepage positions the service as an affordable and stable 4o Image API powered by OpenAI GPT-image-1, while the documentation defines the practical developer surface: Bearer-token authentication, an API server at https://api.4oimageapi.io, a POST endpoint for creating image generation tasks, a GET endpoint for checking task details, callback delivery when jobs complete, and an account endpoint for remaining credits. The service fits teams that want a packaged REST workflow for text-to-image or reference-image generation without managing direct model integration themselves. It is less suitable when a buyer needs first-party OpenAI contracting, a public plan table, detailed compliance documentation, or transparent per-call prices before sign-up. Before production use, teams should verify current credit packages, per-call credit consumption, data handling terms, and support expectations inside the official dashboard.

Best for

Developers who need a REST API for AI image generation inside an existing product.

Product and growth teams that want generated visuals, mockups, or ad concepts without operating model infrastructure directly.

Agencies and automation builders that prefer credit-based access, callbacks, and account-level usage monitoring.

Best use cases

A web app submits a product-prompt request, stores the returned task ID, and receives the final image through a callback URL.

A design workflow uploads up to five reference images, generates a 1:1, 3:2, or 2:3 concept, then polls task status until success or failure.

A marketing pipeline creates campaign visuals in batches, monitors remaining credits before each run, and pauses jobs when credits are low.

A support team debugs failed image jobs by checking documented status values such as GENERATING, SUCCESS, CREATE_TASK_FAILED, and GENERATE_FAILED.

Compare before choosing

Compare with native OpenAI image APIs if first-party vendor billing, direct model controls, or OpenAI policy support are more important than a simplified third-party wrapper.

Compare with multi-model API gateways if you need one account to route across several image models instead of one 4oImageApi.io image workflow.

Compare with no-code image generators if your team needs a visual editor more than API keys, callbacks, status polling, and credit monitoring.

Features

REST image generation endpoint

The docs expose a POST /api/v1/gpt4o-image/generate endpoint for creating 4o Image generation tasks.

Prompt and reference image workflows

Official docs describe prompt-based generation plus image-based creation with up to five reference images.

Asynchronous callback delivery

Generation can send results to a callback URL when the task is completed, supporting backend automation patterns.

Task status tracking

The record-info endpoint lets developers query status, parameters, and results for a submitted task ID.

Bearer-token API authentication

All API requests require an Authorization header with a Bearer token generated from the account dashboard.

Credit and quota controls

Account management pages cover remaining credits, usage quotas, top-ups, low-credit alerts, and billing controls.

Pros

Official docs provide clear API server, authentication, generation, status, and account-credit endpoints.
The callback model is useful for long-running image jobs and backend workflows.
Homepage and docs cover practical workflow details such as aspect ratios, reference images, and status values.
Dashboard copy exposes credit balance, top-up, invoice, auto top-up, and usage monitoring concepts.

Cons

No public pricing table or per-call credit schedule was found on the official public pages.
The service is a third-party wrapper, so buyers should not treat it as OpenAI itself.
Public security and privacy documentation was not found in the checked official navigation.
Some homepage claims, such as uptime and support, should be validated contractually before production adoption.

Pricing Plans

Free trial

$0trial

Try the API before paid usage
Create an account and API key
Evaluate documented image generation workflows

* Pricing information is for reference only. Please refer to the latest announcement on 4oImageApi.io's official website.

FAQ

No. The official site describes a 4o Image API powered by OpenAI GPT-image-1, but 4oImageApi.io is presented as a separate third-party service with its own website, dashboard, docs, credits, and support.

The official documentation lists https://api.4oimageapi.io as the API server.

The docs require Bearer Token authentication. Developers generate an API key from the API key management page and send it in the Authorization header.

The docs show POST /api/v1/gpt4o-image/generate for creating a new image generation task.

Yes. The generation docs describe a callback URL that receives a POST request when the 4o Image task is completed.

The Generate 4o Image documentation states that generated images are stored for 14 days, after which they expire.

Verify current credit packages, per-call credit consumption, data handling terms, uptime commitments, and support coverage in the official dashboard or contract.