Model Comparison

GPT Image 1.5vsFLUX.1 Kontext

A detailed side-by-side look at GPT Image 1.5 and FLUX.1 Kontext: features, quality, and the right use case for each.

GPT Image 1.5

OpenAI's Image Model — Perfect Text, Editing, and Multi-Object Scenes

GPT Image 1.5 is OpenAI's image generation model — the same model powering image creation in ChatGPT-4o. It excels at accurate text rendering inside images, image editing with mask-based inpainting, and complex multi-object scenes (10–20 distinct objects). Three quality levels (low/medium/high) let you balance speed and detail. Outputs in PNG, JPEG, or WebP with optional background transparency.

  • Accurate Text Rendering
  • Image Editing & Inpainting
  • Multi-Object Scenes
Open GPT Image 1.5 →

FLUX.1 Kontext

Natural Language Image Editing by Black Forest Labs

FLUX.1 Kontext by Black Forest Labs is an AI image editing model that transforms images through natural language instructions. Two tiers: [Pro] for ultra-fast editing (up to 8x faster than GPT-Image) and [Max] for maximum precision, better typography, and complex multi-step workflows. Non-destructive editing preserves the original image while applying targeted changes.

  • Natural Language Editing
  • Pro: Ultra-Fast Turnaround
  • Max: Precision & Typography
  • Non-Destructive Editing
Open FLUX.1 Kontext →

Feature Comparison

FeatureGPT Image 1.5FLUX.1 Kontext
Key capabilities listed34
Available on The Factory

Which Model Should You Choose?

Choose GPT Image 1.5 if you need:

  • Accurate Text Rendering
  • Image Editing & Inpainting
  • Multi-Object Scenes
  • No-API access via The Factory
Try GPT Image 1.5

Choose FLUX.1 Kontext if you need:

  • Natural Language Editing
  • Pro: Ultra-Fast Turnaround
  • Max: Precision & Typography
  • Non-Destructive Editing
  • No-API access via The Factory
Try FLUX.1 Kontext

Frequently Asked Questions

GPT Image 1.5 vs FLUX.1 Kontext: which is better?
It depends on your use case. GPT Image 1.5 — OpenAI's Image Model — Perfect Text, Editing, and Multi-Object Scenes. FLUX.1 Kontext — Natural Language Image Editing by Black Forest Labs. Both are available on The Factory so you can test both without separate API accounts.
Can I try both GPT Image 1.5 and FLUX.1 Kontext for free?
Yes. The Factory gives free credits on sign-up that work across all models including GPT Image 1.5 and FLUX.1 Kontext. No paid plan required for your first generations.
What is the main difference between GPT Image 1.5 and FLUX.1 Kontext?
GPT Image 1.5: GPT Image 1. FLUX.1 Kontext: FLUX.
Which model should I use for AI video generation?
If native audio generation matters, use a model with audio support. For image-to-video workflows, both GPT Image 1.5 and FLUX.1 Kontext may support reference images — check each model's feature page.

Try Both Models on The Factory

No API keys. No complex setup. Switch between models on every generation.