Free web
For: Trying the generator
Limits
- 5 thumbnails included
- Up to 2 thumbnails at once
1 more
- 2 persons, 10 inspirations
Includes
- Gemini model only
- Watermark on exports
Image generationDocumented overviewLast checked Oct 1, 2026
Thumbfa.st: Pricing, Features & Best Use Cases
AI YouTube thumbnail generator with saved face profiles, style references and up to 4 variations per run.
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Our take: Thumbfa.st suits YouTube creators and podcasters who want 1280x720 thumbnails generated from a saved face profile and style references, with up to four variations per run.
Main limitation: Free gives only 5 thumbnails with a watermark, and Pro and Ultra cap monthly thumbnails at 150 and 500.
Who should use Thumbfa.st
Thumbfa.st suits YouTube creators and podcasters who want 1280x720 thumbnails generated from a saved face profile and style references, with up to four variations per run. Based on the vendor's documentation, not on a hands-on test.
Best for: YouTube creators
Also a good fit for
- Podcasters
Consider another tool if free: 5 thumbnails with watermark
Or if
- Pro capped at 150/month
- Ultra capped at 500/month
Thumbfa.st pricing and usage limits
Prices checked Oct 1, 2026 on the official US pricing page. Prices and limits change often.
Free access and trial conditions
Free plan includes 5 thumbnails, no credit card.
Free plan serves as trial.
Paid plans: what changes as you upgrade
Pro web
$19/mo source (opens in a new tab)
Month
For: Regular creators
Limits
- 150 thumbnails/month
- Up to 4 thumbnails at once
Includes
- Unlimited inspirations and persons
- Gemini and OpenAI models
2 more
- No watermark
- Priority live-chat support
Ultra web
$49/mo source (opens in a new tab)
Month
For: Power users
Limits
- 500 thumbnails/month
Includes
- Maximum thumbnails for power users
Lifetime (bring your own API keys) web
$199 one-time source (opens in a new tab)
One-time
For: Users with their own model keys
Limits
- You supply your own API keys
Includes
- Pay once
- Lifetime access
Usage caps, credits and extra costs
Lifetime plan requires your own API keys, whose model costs are billed by the provider.
Not stated.
What is Thumbfa.st, and how does it work?
Thumbfa.st generates YouTube thumbnails from a prompt, a saved person profile and style references taken from other thumbnails. It produces up to four variations at once at 1280x720. The homepage lists a free plan with 5 thumbnails, paid monthly plans, and a lifetime option using your own API keys. Free utility tools are also offered.
What you provide and what you get back
You provide
- Text prompt
- Person profile photos
- Style references from YouTube thumbnail URLs
- Hand sketches in the built-in editor
You get back
- 1280x720 PNG thumbnails
- Up to four variations per run
- Saved version history
Where you can use it
- Platforms
- Web
- Account
- Required
- Models / versions
- Gemini models (Free); Gemini + OpenAI models (Pro/Ultra); versions not named
- Output
- 1280x720 PNG
- Variations per run
- 2 (Free), 4 (Pro)
- Watermark
- Free exports only
- Models
- Gemini (Free); Gemini and OpenAI (Pro)
- Monthly thumbnails
- 5 total / 150 / 500
Best use cases for Thumbfa.st
Scenarios are worked out by our editors from the documentation; the actual result depends on your input and plan.
Create YouTube thumbnails
- Who
- YouTube creators
- You provide
- Face photos saved once plus a prompt
- Expected result
- Thumbnails that keep the creator's likeness
- Plan needed
- Pro
- Limitation
- Free exports carry a watermark source (opens in a new tab)
Reuse a consistent face
- Who
- Podcasters with weekly guests
- You provide
- One podcast thumbnail template and a guest photo
- Expected result
- Episode thumbnails in a consistent style
- Plan needed
- Pro
- Limitation
- Needs a clear template to swap from source (opens in a new tab)
Copy a thumbnail's style from a URL
- Who
- Channel managers comparing designs
- You provide
- A competitor thumbnail URL
- Expected result
- A saved style reference reused in new thumbnails
- Plan needed
- Free
- Limitation
- Copying style depends on the reference quality source (opens in a new tab)
Key features and their practical limits
Person profiles
Saves a Person profile of face photos and a description to reuse in each prompt. Keeps the same likeness across thumbnails.
Inspiration library
Builds an inspiration library from pasted YouTube URLs that extracts style, colors and composition. Reuses thumbnail styles that worked.
1-4 variations
Generates one to four variations per run, each counting as one thumbnail. Enables A/B testing of options.
Template mode
Offers a Template mode and sketch editor where drawn layouts become thumbnails. Starts from a layout when no reference exists.
Pros, cons and deal-breakers
Reasons to choose Thumbfa.st
- Free plan available Test before paying documented source (opens in a new tab)
- No credit card for free tier Zero risk start documented source (opens in a new tab)
- Version history Old iterations stay recoverable documented source (opens in a new tab)
- Lifetime option One-time $199 with own keys avoids subscriptions documented source (opens in a new tab)
- Exports at YouTube's exact 1280x720 PNG Upload without resizing documented source (opens in a new tab)
Check before paying for Thumbfa.st
- Free: 5 thumbnails with watermark Free output cannot be published cleanly documented source (opens in a new tab)
- Pro capped at 150/month Daily uploaders may hit the limit documented source (opens in a new tab)
- Ultra capped at 500/month Studios producing more need a custom plan documented source (opens in a new tab)
- Free plan Gemini model only Plan terms are harder to verify documented source (opens in a new tab)
- Privacy page returned 404 Face photo handling terms could not be reviewed documented source (opens in a new tab)
How to use Thumbfa.st for generating a YouTube thumbnail with your face
Set up Thumbfa.st
- Sign up free at thumbfa.st (no credit card)
- Create a Person profile with your face photos and a short description
- Paste a YouTube thumbnail URL to save a style in your Inspiration library
Example: generating a YouTube thumbnail with your face
- Write a prompt describing the thumbnail
- Select your Person and an Inspiration
- Choose 1 to 4 variations and click generate
- Compare variations side by side and download the PNG
Review and export the result
- Confirm the face matches your profile across variations
- Check the output is 1280x720 and free of the watermark if on a paid plan
Shocked reaction with my face on the left, a glowing laptop on the right, bold headline: I Built This in 1 Hour
Thumbfa.st integrations and API
Native integrations and export formats
Export: PNG (1280x720)
API access and separate billing
Thumbfa.st has no public API in its official documentation. Lifetime plan uses your own API keys for models. API documentation ↗
Privacy, data use and commercial rights
Summarized from the vendor's current policies; this is not legal advice and a vendor's badge is not an independent audit.
How your inputs and outputs are handled
You upload face photos and prompts; generated thumbnails are saved with version history.
Not stated.
Thumbnails are saved automatically; deletion terms not stated.
Commercial use and plan restrictions
Thumbnails are intended for your YouTube channel.
Free exports watermarked.
Other tools to consider instead of Thumbfa.st
"Better suited" is based on documented features and pricing, not on a head-to-head test.
Midjourney: better suited to
Leonardo.Ai: better suited to
Canva: better suited to
| Alternative | When to choose it | Pricing | Limitation | |
|---|---|---|---|---|
| Midjourney | — | — | Compare | |
| Leonardo.Ai | — | — | Compare | |
| Canva | — | — |
Explore Thumbfa.st further
Thumbfa.st pricing, plan by planEvery plan with USD prices, limits and what is free.Best Thumbfa.st alternativesTools for the same job, by need and starting price.Best AI image generatorsOur picks in this category, compared by price and free tiers.Prompts for Thumbfa.stReady-to-copy prompts with their sources.
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Guides and comparisons
Thumbfa.st user reviews
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Thumbfa.st FAQ
How many thumbnails does the Thumbfa.st free plan include?
5 thumbnails, up to 2 at once, with a thumbfa.st watermark and Gemini only. source (opens in a new tab)
What do Thumbfa.st Pro and Ultra cost?
Pro is $19 a month for 150 thumbnails and Ultra is $49 a month for 500; a $199 lifetime plan uses your own API keys. source (opens in a new tab)
What size are Thumbfa.st thumbnails?
1280x720, YouTube's exact resolution, downloaded as PNG. source (opens in a new tab)
How do variations count against my limit?
Each variation uses 1 thumbnail from your plan allowance, so four variations use four. source (opens in a new tab)
Which AI models does Thumbfa.st use?
Free uses Gemini only; Pro adds OpenAI models. source (opens in a new tab)
Sources and review methodology
Official sources and verification dates
- Thumbfa.st homepage with pricing homepage · checked Oct 1, 2026
- Thumbfa.st free tools homepage · checked Oct 1, 2026
- Thumbfa.st docs docs · checked Oct 1, 2026
- Models / engine, vendor page docs · checked Oct 11, 2026 · what_it_is.models_versions
Not verified: Privacy policy; Training use; Retention; Pricing page (404).
How we documented and maintain this page
Every fact about Thumbfa.st above comes from the 4 official pages listed here, last compared on Oct 1, 2026; we have not run Thumbfa.st ourselves, so it has no editorial score. How we check and re-check pages.
Article updated Oct 2, 2026; prices checked Oct 1, 2026. Outbound links to vendors are plain links; we do not earn commissions. How we review · Report an error