AI Comparisons

FLUX 1.1 Pro vs DALL-E 3 vs Gemini 2.5 Flash Image: The 2026 Comparison

Three image generation models, one prompt, very different results. Detailed comparison across photorealism, text rendering, artistic style, speed, and cost — with links to try each one.

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Lamont Kirton
Founder & AI Educator
April 20, 2026
8 min read
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FLUX 1.1 Pro vs DALL-E 3 vs Gemini 2.5 Flash Image

AI image generation crossed a threshold in 2025. By early 2026, the top three models — FLUX 1.1 Pro (Black Forest Labs), DALL-E 3 (OpenAI), and Gemini 2.5 Flash Image (Google) — are all genuinely useful. But they're not interchangeable. Each has a strength, and using the wrong one wastes credits.

This guide compares them across five dimensions that actually matter for the typical user — and you can run the same prompt through all three in the Playground to see for yourself.

TL;DR

DimensionWinner
PhotorealismFLUX 1.1 Pro
Text rendering in imagesDALL-E 3
Artistic styles / illustrationDALL-E 3
SpeedGemini 2.5 Flash Image
Cost per imageGemini 2.5 Flash Image
Prompt adherenceFLUX 1.1 Pro

1. Photorealism

Ask for "a candid photo of a mid-century living room in warm afternoon light" and FLUX will give you something that looks like a real interior photographer took it. Skin texture, fabric weave, the way light bounces off a brass lamp — FLUX renders all of it with an uncanny level of detail.

DALL-E 3 can do photoreal, but tends toward a slightly smoothed, over-lit look. Gemini 2.5 Flash Image is more cartoony by default unless you heavily prompt for realism.

FLUX wins here, by a wide margin.

2. Text in Images

Generating images that contain readable text — a poster, a sign, a meme with a caption — is where DALL-E 3 still leads. Its typography is more consistent, spelling errors are rare, and it handles multi-word phrases without falling apart.

FLUX has improved dramatically and is now passable for short text (1–3 words). Gemini Flash Image often mangles anything beyond a single word.

Pick DALL-E 3 for anything with a lot of text.

3. Artistic Styles

DALL-E 3 is the most versatile stylistically. Studio Ghibli? Watercolor? 90s anime? Vector infographic? It handles all of these cleanly.

FLUX tends to anchor toward photorealism even when you ask for illustration — you have to prompt harder. Gemini is in the middle: decent at digital art, less reliable at specific named styles.

4. Speed and Cost

Gemini 2.5 Flash Image is the fastest of the three — often under 3 seconds per image — and it's also the cheapest. That makes it the right default when you need to iterate 20 variations quickly.

FLUX 1.1 Pro takes 8–15 seconds and costs more per image. DALL-E 3 sits in the middle on both.

For rapid ideation → Gemini. For the final hero image → FLUX or DALL-E.

5. Prompt Adherence

"Prompt adherence" means: does the model actually render what you asked for?

FLUX is the most literal. Ask for "a red coffee mug on a wooden table, handle facing left, three crumbs visible to the right" and FLUX gets close on all counts. DALL-E 3 often reinterprets prompts more liberally — it's more "creative" but less controllable. Gemini is the most likely to drop details entirely.

Recommended Workflow

Most users don't need to pick one. We use all three:

  1. Ideate with Gemini 2.5 Flash Image — cheap and fast, generate 10–20 thumbnails
  2. Lock in with DALL-E 3 or FLUX — run your favorite composition through the higher-quality model
  3. Publish from Public Gallery — share the final result, get feedback

You can build this exact workflow in the AI Workflow Builder — chain an initial text prompt through an image model, then pass that image through a refinement prompt.

Try Them

Open the Playground's Image tab and run the same prompt through all three. Our Live Model Rankings surface which image model the community favorites most often — useful as a sanity check when you're deciding which one to trust for a new project.

Tags

image-generation
flux
dall-e
gemini
comparison

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