Models/AI Image API

AI Image API — Best Model for Every Job

Live500+ image models, one API key

Muapi's AI image API gives you one REST integration for generation and editing jobs: quality, value, uncensored generation, image editing, character consistency, and open-weights models. Pick the best model per request instead of integrating every vendor separately.

8 of 8 representative models
OpenAIBest Quality

GPT Image 2

High-quality 2K generation with strong prompt following and clean multilingual text rendering.

Text or image in, image out
$0.09/image
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GoogleBest Quality

Nano Banana Pro

Photorealistic generation with strong spatial understanding and coherent local edits.

Text or image in, image out
$0.12/image
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Alibaba (Tongyi-MAI)Best Value

Z-Image Turbo

A low-cost open-weight workhorse that balances fast output with strong general image quality.

Text or image in, image out
$0.007/image
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AlibabaUncensored

Wan 2.7

A current-generation image model for use cases where mainstream content filters are too restrictive.

Text or image in, image out
$0.05/image
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GoogleImage Editing

Nano Banana Pro Edit

Coherent object insertion and removal from a source image, with strong scene and spatial understanding.

Text or image in, image out
$0.12/generation
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IdeogramCharacter Consistency

Ideogram Character

A dedicated character-reference workflow for keeping a subject recognizable across generated scenes.

Text or image in, image out
$0.15/image
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AlibabaOpen Weights

Qwen Image

An Apache 2.0 open model with strong general quality and readable in-image typography.

Text or image in, image out
$0.03/generation
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MidjourneyAesthetic Quality

Midjourney v8

A strong choice for highly stylized and artistic image generation when visual finish is the priority.

Text or image in, image out
$0.10/image
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What Is an AI Image API?

An AI image API turns a text prompt or an existing image into new image output through a REST endpoint. No local GPU, self-hosted model, or separate vendor integration is required. Different models lead on different jobs: raw quality, price, editing, character consistency, or open-weights control.

Muapi exposes 500+ image models through the same request-and-poll flow: one API key, pay-per-generation pricing, and the freedom to switch models per request.

Key Capabilities

Text and Image Input

Generate from a prompt, or edit and transform an existing image with the input fields supported by the selected model.

One Key, Every Model

Switch between GPT Image 2, Nano Banana, Seedream, Midjourney, Imagen, Z-Image, Flux, Qwen, and Ideogram without a new vendor integration.

Character-Consistent Generation

Ideogram Character, MiniMax Subject Reference, and Nano Banana Pro can keep a subject's identity consistent across multiple generations.

Image-to-Image Editing

Use instruction-based, masked, and reference-driven models to rewrite an existing image instead of generating from scratch.

Open-Weights Options

Use Z-Image, Qwen Image, FLUX.2 [dev], and HiDream through hosted endpoints without managing your own GPU infrastructure.

Pay Per Generation

There is no subscription or minimum commitment; pricing is determined by the selected model and its options.

Representative Image Model Comparison

ModelProviderPriceBest For
GPT Image 2OpenAI$0.09/imageHigh-quality general generation and text
Nano Banana ProGoogle$0.12/imagePhotorealism and spatially coherent edits
Z-Image TurboAlibaba (Tongyi-MAI)$0.007/imagePrice/quality balance and fast output
Wan 2.7Alibaba$0.05/imageLess restrictive image generation
Nano Banana Pro EditGoogle$0.12/generationCoherent object insertion and removal
Ideogram CharacterIdeogram$0.15/imageDedicated character consistency
Qwen ImageAlibaba$0.03/generationOpen weights and in-image typography

Prices and supported parameters vary by model. Check each model's Playground schema before submitting production requests.

How to Call the AI Image API

  1. Choose a model. Select a model by quality, value, editing, character consistency, open-weights, or other requirements.
  2. Host your inputs. Upload source images through POST /api/v1/upload_file, or use publicly reachable URLs when the model accepts image input.
  3. Submit the request. Call POST /api/v1/{model-slug} with a prompt and the source-image or model-specific fields supported by that endpoint.
  4. Poll and persist the result. Check GET /api/v1/predictions/{request_id}/result until status is completed, then download the image to your own storage.
curl -X POST https://api.muapi.ai/api/v1/gpt-image-2-text-to-image \
  -H "Content-Type: application/json" \
  -H "x-api-key: YOUR_API_KEY" \
  -d '{
    "prompt": "a neon-lit night market street in Tokyo, photoreal"
  }'
import requests

response = requests.post(
    "https://api.muapi.ai/api/v1/gpt-image-2-text-to-image",
    headers={"x-api-key": "YOUR_API_KEY"},
    json={"prompt": "a neon-lit night market street in Tokyo, photoreal"},
)
request_id = response.json()["request_id"]

result = requests.get(
    f"https://api.muapi.ai/api/v1/predictions/{request_id}/result",
    headers={"x-api-key": "YOUR_API_KEY"},
)
print(result.json())

Frequently Asked Questions

What is the best AI image API model?

It depends on the job. GPT Image 2 and Nano Banana Pro are strong quality choices, Z-Image Turbo is optimized for value, Nano Banana Pro Edit is built for editing, Ideogram Character targets consistency, and Qwen Image provides an open-weights option.

Can I use one API key for every image model?

Yes. The image catalog uses one Muapi API key and the same submit-and-poll pattern across generation and editing endpoints.

How much does AI image generation cost?

Prices range from about $0.003 per image for low-cost models to premium per-generation tiers. The exact cost depends on the selected model and options.

Can I edit an existing image instead of generating from scratch?

Yes. Nano Banana Pro Edit, GPT Image 2 Edit, Seedream Edit, and FLUX Kontext Pro accept a source image and prompt for transformed output.

How do I keep the same character consistent across images?

Use a reference-capable model such as Ideogram Character, MiniMax Subject Reference, or Nano Banana Pro and provide a clear source image.

Can I get AI Image API access right now?

Yes. Sign up at muapi.ai, create an API key from your dashboard, and start calling an image endpoint immediately without a waitlist.