Imagen 4 (Ultra) AI Image Generator
Imagen 4 (Ultra) is a high‑fidelity AI image generator that trades speed for exceptional detail—ideal for cinematic portraits, premium fantasy frames, and hero props.
Key Features
Ultra‑detailed photoreal outputs with low artifacts
Cinematic lighting and controlled contrast
Excellent material portrayal (skin, fabric, metal, leather)
Strong prompt adherence for camera and wardrobe cues
Trades speed for fidelity—best for final passes
How to Get Great Results
- Step 1
Lead with camera and light
Specify lens and shot (85mm close‑up, 50mm medium) and a filmic light setup (soft key + rim, golden hour, studio portrait).
- Step 2
Describe materials precisely
Use concrete surface terms—brushed steel, embroidered velvet, aged leather—to encourage refined micro‑detail.
- Step 3
Keep prompts focused
Two concise sentences work best. Avoid long adjective chains that can introduce over‑processing.
- Step 4
Iterate in small steps
Change one or two variables per pass (palette, background, minor wardrobe) for predictable improvements.
Example Prompts
Cinematic portrait, elven queen in embroidered velvet, 85mm lens, f/2.0, soft key with rim, refined skin texture, precise fabric detail
Medium shot, ranger at forest edge at dawn, golden hour backlight through mist, natural palette, controlled contrast
Photoreal blacksmith in leather apron at forge, sparks in shallow bokeh, realistic sweat sheen, rich texture fidelity
Hero prop render, jeweled longsword on linen, brushed steel blade, polished gemstone pommel, soft sweep lighting, crisp reflections
Painterly concept frame, cliffside citadel at sunset, warm lanterns vs cool dusk, dramatic clouds, cinematic composition
💡 Click the copy button to use these prompts in your own generations
Best For
Cinematic Portraits
Premium headshots and medium shots with film‑grade lighting and material realism.
Fantasy Set Pieces
Polished key art frames with believable materials and atmosphere.
Hero Props
Close‑up renders of weapons and items with crisp edges and lifelike reflections.
Model Capabilities
Strengths & Limitations
Strengths
- Exceptional detail and low artifacts
- Cinematic lighting with natural color handling
- Strong composition and prompt adherence
Limitations
- Slower than standard Imagen 4
- No img2img or ControlNet on CharGen
- Long text strings remain challenging in‑image
Frequently Asked Questions
About Imagen 4 (Ultra)
Imagen 4 (Ultra) on CharGen emphasizes high‑fidelity, low‑artifact outputs for portraits, set pieces, and hero props. As an AI image generator, it’s best for final‑quality renders when you already have a clear direction and want maximum polish from text alone.
Prompting Approach
Compose like a photographer or DP: subject, lens, shot, and light. Add concise material descriptors and iterate with small changes for predictable gains.
When to Choose Ultra
Choose Imagen 4 (Ultra) when you need premium fidelity for portraits and key art. For faster drafts or broader versatility, use Imagen 4; for restyle and pose control, use Flux.Dev or HiDream.
Imagen 4 (Ultra) vs Other Image Models
Imagen 4
- Imagen 4 is faster and broadly versatile; Ultra is slower but more detailed.
- Use Imagen 4 for drafts/iteration; Ultra for final hero passes.
- Both adhere to concise photographic prompts.
- Pick by iteration speed vs. fidelity.
- Pipeline: Imagen 4 → Ultra.
Flux.Pro
- Flux.Pro provides cinematic micro‑detail; Ultra provides refined, low‑artifact fidelity.
- For dramatic cinematic portraits, Flux.Pro; for super‑clean premium polish, Ultra.
- Both reward lens/light/material cues.
- Choose by cinematic drama vs. clinical polish.
- Alternate per brief.
Flux.Krea
- Krea aims at ultra‑natural modern realism; Ultra at premium detailed photoreal.
- For natural, contemporary looks, Krea; for premium hero detail, Ultra.
- Both produce convincing portraits and props.
- Pick by vibe: natural vs. premium.
- Use both to broaden range.
Wan 2.5 Image
- Wan 2.5 spans styles; Ultra focuses on premium photoreal detail.
- For style exploration, Wan 2.5; for final photoreal polish, Ultra.
- Both adhere to camera/light cues.
- Choose by range vs. fidelity.
- Mix across deliverables.
Luma Photon
- Photon is natural photoreal; Ultra is premium, detailed photoreal.
- For quick clean photoreal, Photon; for final hero polish, Ultra.
- Both yield clean composition.
- Pick by speed vs. finish.
- Try the same prompt on both.