Model comparison · REPRODUCIBLE GUIDE

GPT Image 2 vs Gemini 2.5 Flash Image: Test Framework

Evaluate GPT Image 2 and Gemini 2.5 Flash Image with identical prompts, raw evidence, latency records, and acceptance 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.

The comparison separates visual richness from operational fit by examining product staging, transparent-output compliance, dense interface hierarchy, architecture detail, and the time required to obtain one accepted image.

Ecommerce

Ceramic skincare hero

Editorial product photograph of a matte ceramic skincare bottle on pale limestone, soft north-window light, delicate contact shadow, warm neutral palette, 85mm lens compression, no text, no logo.
Clean premium product hero1:1
Ecommerce

Transparent headphones cutout

Over-ear headphones isolated as a clean ecommerce cutout, transparent background, accurate soft edge detail around fabric ear pads, neutral product color, no floor, no text, no added accessories.
Transparent catalog asset1:1
Design

Climate intelligence dashboard

Editorial analytics dashboard for a climate intelligence product, dense but legible information hierarchy, off-white canvas, dark graphite type, acid green data accents, modular card grid, desktop viewport.
Dense editorial interface16:10
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
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