Flux 2 vs GPT Image 1.5

Flux 2 by Black Forest Labs generates images from text and edits them with reference images. Three models cover different needs: Flux 2 Pro for high-quality images with excellent prompt adherence, Flux 2 Flex for flexible style transfer, and Flux 2 Klein for ultra-fast, lightweight generation with LoRA support. Add reference images and Flux 2 switches to edit mode automatically.

Reference-Based Editing

Add reference images to your prompt and Flux 2 switches to edit mode — up to 8 references with Pro and Flex.

Klein: Ultra-Fast Drafts

Flux 2 Klein is the lightweight, fastest Flux variant — built for quick drafts and rapid iteration, with LoRA support.

Pro: Prompt Adherence

Flux 2 Pro delivers high-quality images that follow your prompt closely — a strong fit for photorealistic product shots and marketing visuals.

Flex: Style Transfer

Flux 2 Flex specializes in flexible style transfer — match the look of your reference images or explore creative, artistic interpretations.

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

Renders legible, correctly spelled text inside images — signs, labels, posters, UI mockups, and book covers without the glitchy text issue.

Image Editing & Inpainting

Edit existing images using mask-based inpainting — replace specific areas, change backgrounds, or add/remove objects while preserving the rest.

Multi-Object Scenes

Generates scenes with 10–20 distinct objects with consistent spatial relationships, accurate details, and world-knowledge integration.