Head-to-head · September 2026
All in One SEO vs 洪墨AI（PostChat）
All in One SEO comes out ahead, winning 6 of 7 head-to-head checks against 洪墨AI（PostChat）.
All in One SEO
All in One SEO is the original WordPress SEO plugin, founded in 2007 and trusted by over 3 million website…
洪墨AI（PostChat）
PostChat插件支持将你的网站内容添加到知识库，并且支持访客通过知识库来与AI进行对话，并且支持AI搜索功能。还可以为你的博客文章生成AI摘要，让用户更方便的知道这个文章讲了什么。是一个让你的网站升级成为AI站点的绝…
| Metric | All in One SEO | 洪墨AI（PostChat） |
|---|---|---|
| Active installs | 2M+ | 20+ |
| Downloads (30 days) | 1.4M | 573 |
| Download trend | -48.4% | +51.6% |
| Rating | 4.7/5 | — |
| Reviews | 5,211 | 0 |
| Health score | 97/100 | 39/100 |
| Last updated | 6 days ago | 6 months ago |
| Tested up to | WP 7.1.2 | WP 6.8.10 |
| Support resolved | 96% | — |
| Requires PHP | 7.4+ | 5.6.20+ |
| First released | Mar 2007 | Jan 2025 |
Daily downloads, last 90 days
All in One SEO洪墨AI（PostChat）
Choose All in One SEO if…
You care most about active installs, downloads (30 days) and reviews.
- One of the most-used plugins on the web — 2M+ active sites
- Loved by users — 4.7/5 from 5,211 reviews
- Actively developed — last update 6 days ago
- Tested with the latest WordPress (7.1)
- Responsive support — 96% of recent threads resolved
Choose 洪墨AI（PostChat） if…
You care most about download trend.
- Momentum — downloads up 51.6% vs the previous 30 days
- Small user base (20+ active installs)
- Very few reviews so far
- Only tested up to WordPress 6.8 (latest is 7.1)
Both compete in: AI
FAQ
All in One SEO vs 洪墨AI（PostChat）: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Sep 29, 2026
Which is better, All in One SEO or 洪墨AI（PostChat）?
All in One SEO comes out ahead, winning 6 of 7 head-to-head checks against 洪墨AI（PostChat）. Choose All in One SEO if you care most about active installs, downloads (30 days) and reviews. Choose 洪墨AI（PostChat） if you care most about download trend.
Is All in One SEO more popular than 洪墨AI（PostChat）?
All in One SEO is the more popular of the two with 2M+ active installs, compared with 20+ for 洪墨AI（PostChat）.
Can I use All in One SEO and 洪墨AI（PostChat） together?
Both plugins cover AI, so most sites only need one. Running two plugins that do the same job can cause conflicts and slow your site down — pick the one that fits best and remove the other.
Are All in One SEO and 洪墨AI（PostChat） free?
Yes. Both are free to download from the official WordPress.org plugin directory. Either may also offer paid upgrades from its developer.
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