LiteSpeed Cache vs SPAI – Similar posts AI Plugin (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
SPAI – Similar posts AI Plugin
10 active installs
Free
Quick Verdict
As of April 2026, LiteSpeed Cache has a higher user rating (4.8/5 from 2,726 reviews) and leads in active installations (7.0M+ vs 10). Both are free WordPress plugins. LiteSpeed Cache has accumulated 129M+ total downloads while SPAI – Similar posts AI Plugin has 2.6K+.
Detailed Comparison
| Metric | LiteSpeed Cache | SPAI – Similar posts AI Plugin | |
|---|---|---|---|
| Rating | 4.8/5 | ◄ | 3/5 |
| Total Reviews | 2,726 | ◄ | 2 |
| Active Installs | 7.0M+ | ◄ | 10 |
| Total Downloads | 129M+ | ◄ | 2.6K+ |
| Support Resolution | 70% | N/A | |
| Last Updated | 3 days ago | ◄ | 11 months ago |
| First Released | 2016 | 2021 | |
| Age | 10 years | 5 years | |
| WP Requires | 5.3+ | 5.0+ | |
| PHP Requires | 7.2+ | 7.4+ | |
| Business Model | Free | Free | |
| Latest Version | 7.8.1 | 1.8.1 |
Rating Breakdown
LiteSpeed Cache
SPAI – Similar posts AI Plugin
Download Trends
Recent Reviews
LiteSpeed Cache Reviews
Fast & Smooth
Site speed improved a lot after using this. Easy setup n great caching options. Pages load way faster now. really happy with it tbh 👍
BEST CACHE PLUGIN – enterprise performance, features, reliability
I’ve been using LiteSpeed server for over 10 years, LiteSpeed cache for nearly 10 years (almost since the beginning). They keep developing and innovating, nothing else even comes close.
Works great with Hostinger
Works great with Hostinger. I’ve had to toy with a few of the settings to get the optimized results I was looking for but that was easy to do.
SPAI – Similar posts AI Plugin Reviews
No reviews yet
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Frequently Asked Questions
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Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.