Cover

October 14, 2025

Guide: Image Generation Base Models

All the differences between our Image Generation Models explained


When generating images on LetzAI, you can choose between different "Base Models".
Each Base Model offers a different balance of speed, quality, and detail, and they come with different capabilities.

Here's what makes each of them special.



How to pick a base model

Right below your prompt bar, next to the generation button, you can expand image settings. Here you can choose the base model in which your images should be generated.


switch modes


There are 5 original LetzAI base models to choose from:

  • Default
  • Creative
  • Cinematic
  • Sigma
  • Turbo

For Nerds: These 5 Base Models are based on different fine-tuned versions of Flux.dev.



Cinematic

Doubling down on cinematic drama
Released in August, 2025

Cinematic Mode

Cinematic Mode

Cinematic Mode

Cinematic Mode

Cinematic Mode


If you want something that looks like it's straight out of a film frame, this is your pick. The Cinematic base model pushes lighting, framing, mood, color grading, depth, and atmosphere to the max. You'll see richer shadows, stronger contrast, and cinematic dynamics baked into every image.
Speed
★★★★★
Aesthetics
★★★★★
Consistency
★★★★★
Best For:
  • Film-inspired imagery and storytelling visuals
  • Dramatic portraits with moody lighting
  • Scenes requiring strong atmospheric depth
  • Projects where visual impact matters more than speed
Trade-offs:
  • Cinematic lighting and film grain are very prominent
  • Higher risk of depicting small hands and similar details flawed


Creative

Let imagination run wild
Released in July, 2025

Creative Mode

Creative Mode

Creative Mode

Creative Mode

Creative Mode


This model is basically Sigma model on cinematic steroids. Creative mode leans into realism and cinematic feel, but sharp details, hyperrealism, and neutral lighting take a back seat to mood, metaphor, and expressive flair. It's a hybrid between Default and Cinematic — ideal when you want something artistic but grounded.
Speed
★★★★★
Aesthetics
★★★★★
Consistency
★★★★★
Best For:
  • Artistic and expressive imagery with personality
  • Creative projects valuing mood over precision
  • Conceptual work and metaphorical visuals
  • Balanced approach between realism and artistry
Trade-offs:
  • Has a visible film grain and unique color tint
  • Can feel a little limited in its variety when using similar prompts


Turbo

Quick & dirty
Released in May 2025

Turbo Mode

Turbo Mode

Turbo Mode

Turbo Mode

Turbo Mode


As the name suggests, Turbo prioritizes speed over polish. You'll lose a bit of fidelity but gain a lot of generation speed compared to the other modes. Since the overall preservation of likeness and detail remains decent, Turbo is perfect when you're exploring many different prompts or directions at once.
Speed
★★★★★
Aesthetics
★★★★★
Consistency
★★★★★
Best For:
  • Rapid ideation and exploring multiple concepts
  • Quick drafts and testing different prompts
  • High-volume generation needs
  • When time matters more than perfection
What you give up:
  • Slightly lower quality, especially in complex lighting or fine texture areas
  • Reduced likeness of people and objects

Sigma

Faster, lighter, with surprising finesse
Released in March, 2025

Sigma Mode

Sigma Mode

Sigma Mode

Sigma Mode

Sigma Mode


Sigma is our lean but still powerful mode. It's engineered to be roughly 2× faster than Default and tends to produce busier, rougher results. It's especially strong at generating close-ups and portraits. The grainy and noisy nature of this model has a higher chance of creating detailed skin and surface textures, making results feel less AI-like and more organic. Because it's lighter, Sigma is also great for quick iteration and testing.
Speed
★★★★★
Aesthetics
★★★★★
Consistency
★★★★★
Best For:
  • Portraits and close-up shots with realistic textures
  • Organic and natural-looking results
  • Fast iteration without sacrificing too much quality
  • Images where some grain adds character
Trade-offs:
  • Images can become too noisy and chaotic in extreme cases
  • Slightly lower base resolution compared to Default


Default

The neutral baseline and allrounder
Released in September, 2024

Default Mode

Default Mode

Default Mode

Default Mode

Default Mode


This is our reliable workhorse. It leans into consistency, quality, and predictable results. Use Default when you want a balance of good detail, likeness preservation, and overall stability. It's a reliable option whenever you want to produce product images or portraits that maintain structure and realism. But it's also able to cover a wide variety of art, comic, and anime styles.
Speed
★★★★★
Aesthetics
★★★★★
Consistency
★★★★★
Best For:
  • Product photography and commercial work
  • Professional portraits with maintained likeness
  • Projects requiring predictable and consistent results
  • Wide range of styles including art, comics, and anime
Trade-offs:
  • Slower than the other modes we offer
  • Has the most "Flux-Like" AI feel to it when generating people

No matter the base model, remember: all image generations cost 5 credits in V4, so try a few modes for the same prompt and compare. You’ll quickly get a feel for which model best serves your idea.