Model comparison · REPRODUCIBLE GUIDE

GPT Image vs Imagen: A Reproducible Comparison Fixture

Compare two model families using identical prompts, explicit parameters, and task-specific review criteria.

One API gateway for multiple AI models.

APIMart is a multi-model AI API gateway with an OpenAI-compatible endpoint. Use one account to access supported image models, compare current pricing, and choose a cost-efficient option for each workload.

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WHY THIS GUIDE EXISTS

Test the workflow,
not the marketing claim.

Organizes evaluation around instruction following, realism, layout, and production fit without declaring a universal winner.

Food

Artisan bread editorial

Hand-torn sourdough loaf on a linen-covered oak table, open crumb in sharp detail, soft winter window light, a few flour traces, quiet editorial food photography, warm restrained palette.
Editorial food realism4:5
Architecture

Coastal house at dusk

Low modern coastal house at blue hour, weathered cedar and board-formed concrete, dune grasses moving in sea wind, warm interior light, realistic architectural photography, human-scale lens.
Exterior visualization16:9
Design

Architecture brand board

Top-down brand identity presentation for an independent architecture studio, recycled ivory paper, blind embossing, charcoal typography blocks, a single vermilion rule, realistic print texture, orderly Swiss grid.
Brand identity presentation4:3
PYTHON QUICKSTART

Keep the request reproducible.

Store credentials in the environment. Record the exact model identifier, dimensions, test date, and retry count with the resulting asset.

import os
from openai import OpenAI

client = OpenAI(
  api_key=os.environ["APIMART_API_KEY"],
  base_url="https://api.apimart.ai/v1",
)

result = client.images.generate(
  model="gpt-image-1-official",
  prompt=PROMPT,
  size="1024x1024",
  n=1,
)
REVIEW CHECKLIST

Before you publish a result