Model comparison · REPRODUCIBLE GUIDE

Flux 2 Flex vs Gemini 2.5 Flash Image Comparison

Compare Flux 2 Flex and Gemini 2.5 Flash Image using the same prompts for products, posters, characters, and architecture.

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.

This guide turns a broad model question into repeatable task checks, focusing on literal prompt adherence, invented text, character consistency, material realism, latency, and reported cost without declaring a universal winner.

Ecommerce

Running shoe impact

Technical running shoe frozen above a red clay track at impact, fine dust particles suspended in air, directional hard sunlight, visible outsole detail, energetic diagonal composition, commercial sports photography.
Dynamic footwear campaign4:5
Design

Music festival poster

Experimental electronic music festival poster, oversized condensed type placeholders, electric blue field, silver halftone sphere, asymmetric Swiss grid, high contrast screen-print texture, leave all wording blank.
Poster composition test2:3
Characters

Forest ranger character sheet

Character sheet for Mara, a forest ranger with cropped auburn hair, olive field jacket, brass compass and worn canvas backpack; front, profile and three-quarter views; neutral studio background; consistent facial features.
Identity consistency fixture3:2
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