Generate Cover Images
in Any Style, Instantly

Upload a reference cover — CoverGen analyzes the style and generates new covers with matching look, face consistency, and title rendering. No design skills needed.

Start Free – 10 Generations See Examples

No credit card required 10 free generations/month Results in <15 seconds

covergen.ai/generate

CoverGen AI thumbnail generator interface

<15s

Generation time

>85%

Face similarity

Max resolution (4MP)

Reference images max

¥0.03

Cost per image

Try It Now

Generate Cover Images Instantly

Upload a reference cover image and let AI replicate its style

Face Photo *

JPEG, PNG, WebP · max 10MB

Reference Cover *

Style to replicate · up to 10 images

Cover Title *

Video Copy *

Aspect Ratio

Resolution

Quality Mode

Variants

Watch Demo View Examples Free plan: 10 generations/month

Output Gallery

Every Style. Every Platform.

From YouTube thumbnails to Xiaohongshu covers — CoverGen adapts to your needs.

YouTube · Tech

TikTok · Lifestyle

Instagram · Fashion

Bilibili · Gaming

YouTube · Vlog

Xiaohongshu · Beauty

YouTube · Tech

TikTok · Lifestyle

Instagram · Fashion

Bilibili · Gaming

YouTube · Vlog

Xiaohongshu · Beauty

Use Cases

Built for Every Creator and Platform

From solo creators to SaaS platforms needing batch generation.

YouTube Thumbnail Generation

Create eye-catching YouTube thumbnails matching your channel's established style. Upload one reference, generate consistent covers across your entire library.

16:94K ResolutionFace Consistency

Social Media Covers

Generate covers for TikTok, Instagram, and Xiaohongshu in the right ratio. One generation run, multiple platform-ready outputs.

9:16 Vertical1:1 Square4:5 Portrait

Content Repurposing

Repurpose existing cover designs for new content without starting from scratch. Keep your visual identity consistent while scaling output volume.

Style ReplicationUp to 10 References

Batch Generation for Platforms

Content platforms can generate covers for their users at scale. High concurrency, low cost per image — ¥0.03–0.04 per generation.

100 QPS¥0.03–0.04/imageMultiple Variants

Core Features

Everything You Need to Generate Covers at Scale

Five capabilities that make CoverGen the most precise cover generation service available.

Cover Preview — Style Replication Active

CoverGen output showing style replication

FLUX.2Face Match 87%

Generated in 13.2s

Style Replication

Analyze any reference cover and automatically replicate its visual style — color palette, composition, and mood. No prompts required.

Supports up to 10 reference images for enhanced precision

Face Consistency

FLUX.2 native face consistency — upload one portrait and get a recognizable face across every generated cover, without extra models.

>85% face similarity — no extra models needed

Fast Generation

Klein mode delivers results in under 15 seconds. Pro mode under 20 seconds. High-quality mode under 30 seconds — pick the speed you need.

<15s fast · <20s standard · <30s high quality

High Resolution Output

Generate covers at up to 4MP (4K) for platforms that demand crisp, pixel-perfect thumbnails. Available on Pro and Enterprise plans.

Up to 4MP (4K) · PNG / JPG / WebP output

Multiple Variants

Generate 1 to 4 cover variations in a single request for A/B testing. Each variant applies the same style with subtle creative differences.

Up to 4 variants per generation

Why CoverGen

Stop Spending Hours on Covers That Don't Convert

Traditional cover creation is slow, expensive, and inconsistent. CoverGen solves each problem directly.

The Problem

Without CoverGen

With CoverGen

Cover design is time-consuming

Hours per cover

Ready in <15 seconds

Maintaining consistent style is hard

Manual, error-prone

Auto style replication from reference

Face consistency in generated covers is poor

Requires extra LoRA models

FLUX.2 native >85% similarity

Professional design is expensive

¥100–500 per design

¥0.03–0.04 per image

Limited reference images reduce precision

Only 1–2 references

Up to 10 reference images

Technical Capabilities

Built on FLUX.2. Engineered for Production.

Every spec verified from the PRD — no marketing exaggeration.

Service Availability

Built for production workloads with SLA guarantee.

>99.9% uptime

Concurrent Capacity

Handle large-scale batch generation for platforms.

100 QPS max concurrent

Output Resolution

From crisp 1080P to 4K for large-format display.

4MP 4K max output

Generation Speed

Klein for speed, Pro for maximum quality output.

<15s Klein / <20s Pro

Multi-Reference Input

More references = higher style fidelity and consistency.

10 max reference images

Content Safety

NSFW detection on both input and output images.

In/Out detection layers

How It Works

From Reference to Cover in 3 Steps

No design software. No manual editing. Just upload, configure, and generate.

Upload References

Upload your face photo and up to 10 reference covers whose style you want to replicate. Add your title and copy text.

Configure Output

Choose your aspect ratio (16:9, 9:16, 1:1, 4:5), resolution, quality mode, and number of variants you need.

Generate & Download

CoverGen generates your covers in under 20 seconds. Download as PNG, JPG, or WebP — ready to publish.

Pricing

Simple, Transparent Pricing

Pay only for what you use. Scale up when you're ready. No hidden fees.

Pay-per-use

¥0.5 / generation

No subscription. Pay as you go.

No subscription required
Pay as you go
All basic features
1080P resolution

Basic

¥99 / month

For individual content creators.

500 times/month
1080P resolution
2 variant options
Email support

What Creators Are Saying

※ Sample testimonials — please replace with real user feedback before publishing

The style replication is genuinely impressive. I uploaded three reference covers and the output matched the aesthetic exactly. Our thumbnail consistency went from a daily struggle to a two-minute task.

[Creator Name]

[YouTube Channel — 200K subscribers]

※ Sample – replace with real

The face consistency alone makes this worth it. We were spending time with LoRA setups that never matched well. CoverGen delivers 85%+ similarity natively — it's a different class of tool.

[Creator Name]

[Content Creation Platform]

※ Sample – replace with real

At ¥0.03–0.04 per image with 4K output, the cost argument is simple. We integrated it into our platform's backend and it handles our batch generation without a hitch at 100 QPS.

[Developer / CTO]

[Self-Media Tool Platform]

※ Sample – replace with real

Supported Platforms

Every Major Platform, Every Ratio

Generate covers in the exact dimensions each platform expects.

📺YouTube

🎵TikTok

📷Instagram

📺Bilibili

📱Xiaohongshu

Supports 9:16 · 16:9 · 1:1 · 4:5 · Auto aspect ratios

Trust & Safety

Enterprise-Grade Reliability

>99.9% Uptime

High availability SLA for production workloads.

NSFW Content Safety

Input & output NSFW detection on every generation.

100 QPS Concurrency

Handles large-scale batch generation without throttling.

Secure Processing

Images processed securely — not stored after generation.

FAQ

Frequently Asked Questions

CoverGen analyzes your reference cover image and extracts its visual characteristics — color palette, composition, typography placement, and overall mood. It then applies that style to generate new covers featuring your face and text. The more reference images you provide (up to 10), the more precise the style match.

CoverGen uses FLUX.2's native face consistency capability, which means the same base model that generates the image also handles face identity — no separate LoRA or InstantID model required. This delivers >85% face similarity while keeping generation times fast and costs low.

CoverGen supports 16:9 (YouTube/Bilibili), 9:16 (TikTok/Reels), 1:1 (Instagram/Square), 4:5 (Instagram Portrait), and Auto (detected from your reference cover). Output formats include PNG, JPG, and WebP. Resolution options are 1080P (all plans) and 4K (Pro and above).

Yes — the free plan includes 10 generations per month with access to all basic features at 1080P resolution. No credit card required to start. If you need more, the Pay-per-use option charges ¥0.5 per generation with no subscription commitment.

Once you exceed your subscription plan's monthly quota, overage billing applies at ¥0.3 per generation. You won't be blocked — generation continues and the overage is added to your next invoice.

Fast mode (Klein) completes in under 15 seconds. Standard mode (Pro) completes in under 20 seconds. High-quality mode completes in under 30 seconds. The service maintains >99.9% uptime and supports up to 100 concurrent requests per second.

Generate Cover Images
in Any Style, Instantly

Generate Cover Images Instantly

Every Style. Every Platform.