Model Comparison

Flux 2 Dev vs Ideogram V3

Black Forest Labs' open-weight flagship meets Ideogram's text rendering champion. With Ideogram costing roughly 2.5× more per image, this comparison examines whether its industry-leading typography and Magic Prompt feature justify the premium—and when Flux 2 Dev's versatility and image input support make it the better choice.

Comparison8 min read
Background

Open-Weight Versatility vs Typography Excellence

Flux 2 Dev represents Black Forest Labs' best open-weight model. Built by the team behind the original Stable Diffusion research, it delivers strong image quality at a price point that makes high-volume generation practical. With roughly 2.5-second generation times, it offers excellent value for general-purpose image synthesis while supporting image-to-image workflows that many specialized models cannot match.

Ideogram V3 arrived with a laser focus on the one area where most diffusion models consistently fail: text rendering. Ideogram AI built their reputation on producing legible, properly-formed text in images—something that seems simple but has historically required extensive regeneration attempts with other models. The V3 release maintains this text excellence while improving overall image quality.

The ELO gap of approximately 32 points (~1143 vs ~1175) reflects Ideogram's edge in blind preference testing, though much of this advantage comes from its superior text handling. For prompts without text, the difference narrows considerably. Ideogram's "Magic Prompt" feature—which intelligently expands brief prompts into more detailed descriptions—can also contribute to this performance, though users who craft detailed prompts may see less benefit.

This comparison pits two models with genuinely different philosophies against each other. Flux 2 Dev offers open weights, image input support, and cost efficiency for volume work. Ideogram delivers unmatched text rendering and intelligent prompt enhancement. Your choice depends on whether your workflow involves typography—and how often that text needs to be legible.

Tip: Ideogram's "Magic Prompt" feature is enabled by default and can significantly alter your outputs. For direct comparisons or precise control, consider disabling prompt expansion to see the model's native interpretation.

Side by Side

Visual Comparison

Compare outputs from both models using identical prompts. Pay particular attention to text elements—signage, labels, and typography—where Ideogram's specialized training becomes most apparent.

PromptFlux 2 DevIdeogram V3
Signage & TypographyA rustic wooden sign for 'MOUNTAIN TRAILS' bed and breakfast, carved letters with weathered paint, pine trees in background, morning fog, cozy cabin aesthetic
Flux 2 Dev - Signage & Typography
Model: flux-2-dev
A rustic wooden sign for 'MOUNTAIN TRAILS' bed and breakfast, carved letters with weathered paint, pine trees in background, morning fog, cozy cabin aesthetic
Ideogram V3 - Signage & Typography
Model: ideogram-v3
A rustic wooden sign for 'MOUNTAIN TRAILS' bed and breakfast, carved letters with weathered paint, pine trees in background, morning fog, cozy cabin aesthetic
Portrait PhotographyDocumentary portrait of a street musician playing violin in a European plaza, golden hour light catching the instrument, natural expression, candid photography style
Flux 2 Dev - Portrait Photography
Model: flux-2-dev
Documentary portrait of a street musician playing violin in a European plaza, golden hour light catching the instrument, natural expression, candid photography style
Ideogram V3 - Portrait Photography
Model: ideogram-v3
Documentary portrait of a street musician playing violin in a European plaza, golden hour light catching the instrument, natural expression, candid photography style
Product DesignCraft beer bottle with label reading 'GOLDEN HARVEST AMBER ALE', hops and barley illustrations on label, condensation on glass, brewery photography style
Flux 2 Dev - Product Design
Model: flux-2-dev
Craft beer bottle with label reading 'GOLDEN HARVEST AMBER ALE', hops and barley illustrations on label, condensation on glass, brewery photography style
Ideogram V3 - Product Design
Model: ideogram-v3
Craft beer bottle with label reading 'GOLDEN HARVEST AMBER ALE', hops and barley illustrations on label, condensation on glass, brewery photography style
Digital ArtIsometric illustration of a cozy bookshop interior, warm lighting, bookshelves filled with colorful spines, reading nook with armchair, soft shadows, modern vector style
Flux 2 Dev - Digital Art
Model: flux-2-dev
Isometric illustration of a cozy bookshop interior, warm lighting, bookshelves filled with colorful spines, reading nook with armchair, soft shadows, modern vector style
Ideogram V3 - Digital Art
Model: ideogram-v3
Isometric illustration of a cozy bookshop interior, warm lighting, bookshelves filled with colorful spines, reading nook with armchair, soft shadows, modern vector style
Nature SceneAutumn forest path covered in fallen leaves, sunbeams filtering through golden canopy, morning mist, serene landscape photography with rich warm tones
Flux 2 Dev - Nature Scene
Model: flux-2-dev
Autumn forest path covered in fallen leaves, sunbeams filtering through golden canopy, morning mist, serene landscape photography with rich warm tones
Ideogram V3 - Nature Scene
Model: ideogram-v3
Autumn forest path covered in fallen leaves, sunbeams filtering through golden canopy, morning mist, serene landscape photography with rich warm tones

New to ImageGPT?

ImageGPT provides access to both Flux 2 Dev and Ideogram V3 through a single API. Use Flux 2 Dev for versatile, cost-effective generation, then switch to Ideogram when typography accuracy is critical—no provider management required. Start with a 7-day free trial.

Recommendations

When to Use Each Model

Choose based on whether your workflow requires accurate text rendering or prioritizes versatility and cost efficiency.

Flux 2 Dev

  • High-volume generation where cost matters
  • Image-to-image workflows and iterative editing
  • General photography and illustrations without text
  • Projects requiring open-weight flexibility
  • Rapid exploration before committing to premium models

Ideogram V3

  • Marketing materials with readable text
  • Signage, menus, and label design mockups
  • Social media graphics with typography
  • Quick generation with brief prompts (Magic Prompt)
  • Any project where text must be legible
Deep Dive

Text Rendering Accuracy

The defining difference: how each model handles typography in images.

Flux 2 Dev
"Coffee shop window with hand-painted lettering reading 'FRES..."
Flux 2 Dev result
Model: flux-2-dev
Coffee shop window with hand-painted lettering reading 'FRESH BREWED DAILY' and 'OPEN 7AM-6PM', warm interior glow, morning light reflections, boutique cafe aesthetic
Ideogram V3
"Coffee shop window with hand-painted lettering reading 'FRES..."
Ideogram V3 result
Model: ideogram-v3
Coffee shop window with hand-painted lettering reading 'FRESH BREWED DAILY' and 'OPEN 7AM-6PM', warm interior glow, morning light reflections, boutique cafe aesthetic

Text rendering is where these models diverge most dramatically. This prompt requires rendering two distinct text elements at different scales—a main slogan and business hours—in a hand-painted style. It's a common real-world scenario for signage, marketing, and social media graphics.

In our testing, Ideogram consistently produced legible text with proper letter formation and spacing. Flux 2 Dev captured the visual aesthetic effectively but the text itself frequently contained errors—missing letters, character substitutions, or inconsistent sizing. For any application where the text must be readable, this difference determines whether an image is usable or requires regeneration.

Note: Text rendering remains probabilistic even with Ideogram. Complex typography, unusual fonts, or very small text can still produce errors. However, Ideogram's success rate is substantially higher than Flux 2 Dev or most other diffusion models.

Deep Dive

Portrait Photography

Comparing photorealistic portrait quality where text isn't the focus.

Flux 2 Dev
"Environmental portrait of a ceramicist at their pottery whee..."
Flux 2 Dev result
Model: flux-2-dev
Environmental portrait of a ceramicist at their pottery wheel, hands shaping wet clay, studio light through north-facing windows, shallow depth of field, documentary photography style
Ideogram V3
"Environmental portrait of a ceramicist at their pottery whee..."
Ideogram V3 result
Model: ideogram-v3
Environmental portrait of a ceramicist at their pottery wheel, hands shaping wet clay, studio light through north-facing windows, shallow depth of field, documentary photography style

Portrait photography without text elements provides a more level playing field. This prompt emphasizes natural lighting, texture (wet clay, skin), and authentic environmental context—qualities that test a model's general image synthesis capabilities rather than its text-specific training.

Both models produce capable portraits, though their approaches differ. Flux 2 Dev tends toward more naturalistic rendering with authentic imperfections and subtle tonal variations. Ideogram V3 often produces slightly more polished results that can feel more "designed." For pure photography without text, Flux 2 Dev's lower cost makes it compelling—you're paying less for comparable quality.

Deep Dive

Product & Packaging Design

Testing label design where text accuracy meets product photography.

Flux 2 Dev
"Artisan hot sauce bottle with label reading 'DEVIL'S TONGUE'..."
Flux 2 Dev result
Model: flux-2-dev
Artisan hot sauce bottle with label reading 'DEVIL'S TONGUE' and 'EXTRA HOT', hand-drawn flame illustrations, rustic kraft paper label, product photography on wooden surface
Ideogram V3
"Artisan hot sauce bottle with label reading 'DEVIL'S TONGUE'..."
Ideogram V3 result
Model: ideogram-v3
Artisan hot sauce bottle with label reading 'DEVIL'S TONGUE' and 'EXTRA HOT', hand-drawn flame illustrations, rustic kraft paper label, product photography on wooden surface

Product and packaging design combines multiple challenges: readable text at various scales, consistent styling, and realistic product photography. This prompt requires rendering a brand name, heat descriptor, and decorative illustrations—all common elements in food and beverage packaging mockups.

Ideogram's advantage becomes pronounced in scenarios like this. The model tends to produce labels that could serve as actual design mockups—text is readable, hierarchy is maintained, and decorative elements complement rather than conflict with the typography. Flux 2 Dev produces attractive product shots, but the label text often requires the viewer to use imagination to "read" what was intended.

Tip: For design mockups, consider using Ideogram even at the higher cost. The time saved from not regenerating images with garbled text often exceeds the price difference.

Deep Dive

Digital Illustration

Comparing stylized illustration capabilities beyond photorealism.

Flux 2 Dev
"Flat design illustration of a busy farmers market scene, col..."
Flux 2 Dev result
Model: flux-2-dev
Flat design illustration of a busy farmers market scene, colorful produce stands, people shopping with canvas bags, sunny day atmosphere, modern vector illustration style with clean shapes
Ideogram V3
"Flat design illustration of a busy farmers market scene, col..."
Ideogram V3 result
Model: ideogram-v3
Flat design illustration of a busy farmers market scene, colorful produce stands, people shopping with canvas bags, sunny day atmosphere, modern vector illustration style with clean shapes

Digital illustration tests whether models can execute specific visual styles beyond photorealism. This prompt requests flat design with clean geometric shapes—a style that rewards precision over photographic accuracy.

Ideogram's "Design" style preset can be particularly effective for illustration work, producing clean edges and consistent styling. Flux 2 Dev interprets illustration prompts more freely, sometimes producing interesting hybrid styles that blend illustration with more rendered elements. For strict style adherence, Ideogram's presets provide more control; for creative exploration, Flux 2 Dev's interpretive flexibility can yield unexpected results.

Deep Dive

The Value Equation

When does the 2.5x cost difference justify choosing one over the other?

Flux 2 Dev (~2.5s)
"Misty mountain lake at sunrise, perfect reflection of snow-c..."
Flux 2 Dev (~2.5s) result
Model: flux-2-dev
Misty mountain lake at sunrise, perfect reflection of snow-capped peaks, pine forest along shoreline, golden light breaking through clouds, landscape photography
Ideogram V3 (~4s, ~2.5× cost)
"Misty mountain lake at sunrise, perfect reflection of snow-c..."
Ideogram V3 (~4s, ~2.5× cost) result
Model: ideogram-v3
Misty mountain lake at sunrise, perfect reflection of snow-capped peaks, pine forest along shoreline, golden light breaking through clouds, landscape photography

For subjects without text—landscapes, abstract art, nature photography—both models produce strong results. The ELO gap narrows significantly when text rendering isn't a factor, making the cost comparison more relevant.

The math is straightforward: the cost of one Ideogram image buys approximately 2.5 Flux 2 Dev images. For exploration, iteration, or any workflow involving image-to-image refinement, that volume advantage compounds. Reserve Ideogram for scenarios where its unique strength—accurate text—actually matters.

Tip: A practical workflow: use Flux 2 Dev to explore compositions, iterate on concepts, and refine image-to-image results. Switch to Ideogram only when adding text elements to finalized designs.

Specifications

Feature Comparison

Technical specifications and capabilities for both models.

FeatureFlux 2 DevIdeogram V3
Release20252025
ArchitectureFLUX.2 DiffusionIdeogram proprietary
CreatorBlack Forest LabsIdeogram AI
Image qualityVery GoodVery Good
Text renderingModerateIndustry-leading
PhotorealismVery GoodGood
Generation speed~2.5s~4s
Relative cost1× (baseline)~2.5× more expensive
Image input support
Aspect ratio options9 ratios7 ratios
Style presetsNone4 types
Prompt expansionNoneMagic Prompt
ELO rating~1143~1175
Open weights
Try It Yourself

Try Flux 2 Dev

Try Flux 2 Dev with your own prompts. Generate images and compare the results. Try prompts that include text elements to see Ideogram's typography expertise, or test image-to-image workflows where Flux 2 Dev has the advantage.

Generated visual
https://demo.imagegpt.host/image?prompt=A+vintage+neon+sign+for+%27JAZZ+CLUB%27+glowing+in+a+rainy+alley%2C+reflections+on+wet+cobblestones%2C+moody+blue+and+pink+lighting%2C+noir+photography+style+with+dramatic+shadows&model=flux-2-dev

Frequently Asked Questions

Typography matters—or it doesn't.
Choose the right tool for the job.