AI Content That Doesn't Stop at Publish.
Sorabun is the WordPress AI Content Engine that plans, writes, and publishes your articles. Then it tracks their real Google rankings every day and rewrites the ones that fall behind. One plugin, one loop, running inside the WordPress you already use.
Gemini API has a free tier (up to 1,500 requests/day at $0) · Also works with ChatGPT / Claude / Grok / DeepSeek · WordPress 6.4+
NEW AI Director is here. It reads the numbers and runs the fix automatically →These four steps keep running, on their own
(with reasons attached)
Every Step of Content, in One Plugin
From keyword research to fixing the articles that stopped ranking, Sorabun does the work an SEO team does every day, running inside WordPress itself.
An AI editor builds your calendarNEW
Sorabun decides which article, in what order, and when to publish it, and shows its reasoning. Approve the calendar once and each article gets built automatically on its scheduled day.
AI Director runs the fixes itselfNEW
Working from measured rankings and read-through data, it picks the single biggest problem holding a page back, fixes it, predicts the result 28 days out, then checks its own prediction against reality.
A site audit sets the foundationNEW
Enter your site name, theme, and competitors and Sorabun runs an SEO audit, proposes your first five articles, and carries what it learns into every article after.
Titles built to get clickedNEW
Sorabun assembles each title from 14 proven headline patterns. Three alternates sit on the review screen. Swap in one click.
Sell articles for moneyNEW
Gate the rest of an article behind a one-time purchase or a monthly membership. Sell articles individually, or bundle them into a magazine. Revenue lands directly in your own Stripe account. You can also gate content behind a LINE follow instead of a payment, if you'd rather trade access for subscribers.
Featured images & diagrams, automatically
Sorabun generates a title-branded featured image plus flow charts and comparison diagrams, then checks each one for AI-art glitches (extra fingers, garbled text) and regenerates anything that fails.
Rank tracking & SEO insights
Tracked keywords get checked daily. Connect Site Kit and Sorabun surfaces "hidden-gem" queries and slipping articles straight from your real Search Console data.
Turn an article into a podcast episodeNEW
Sorabun converts an article into a spoken-word script, voices it with AI narration, and publishes straight to Spotify and Apple Podcasts.
There's more
Batch-generate from a keyword listNEWPaste up to 50 keywords and get up to 50 articles back
In-article CTAs with click trackingNEWDrop a call-to-action box into an article and measure its click-through rate
See how far readers actually getNEWReach measured heading-by-heading (H2/H3) so you can see exactly where people drop off
Promote your own product, in contextNEWMentions it only where it fits the article's flow, and tracks the clicks
Short link managementNEWCategory organization, click tracking, and automatic in-article linking
Editor's notesNEWDrop notes for the human author into the draft; they disappear from the published page
International SEO alertsNEWChecks overseas primary sources daily and flags only what needs a response
Written to current SEO theoryInformation Gain, E-E-A-T, and other 2026 ranking factors, built in
AI article-suggestion engineAnalyzes what's performing and proposes what to write next, weekly
News auto-articlesWatches the news on topics you register and turns relevant stories into articles daily
One-click AI rewriteRewrites an underperforming article with current information (URL stays the same)
Also generate posts for other channelsOne article also becomes a social thread and a YouTube script
Multilingual site supportAuto-translate into Japanese, Chinese, Korean, and Spanish
Theme-aware auto-formattingBold text, highlights, and callout boxes styled to match your themeInternal links & structured dataInternal linking, JSON-LD, and llms.txt, all handled automatically
Flexible input sourcesGenerate from a keyword, a YouTube video, or any web page URL
Use the AI model you preferChoose Gemini, ChatGPT, Claude, Grok, or DeepSeek
REST API & MCP integrationTrigger article generation remotely from outside tools
Turn an article into slidesConvert one article into presentation-ready slide imagesWhat's Different From Writing
in ChatGPT or Claude Code
Being honest, the writing itself is no longer the hard part. Most AI models are good at it now. Sorabun is built on Gemini, ChatGPT, Claude, Grok, and DeepSeek too. What actually separates it happens before you write, and after you publish.
Scroll to see the full table →
| Copy-Pasting Into ChatGPT / Claude |
Codex / Claude Code (CLI) |
Sorabun | |
|---|---|---|---|
| Skill required | None | Terminal use, API knowledge | None (browser only) |
| Where you work | A separate tab, then copy-paste | A terminal | Your WordPress dashboard |
| Usable by non-engineers | Yes | Difficult | Yes |
| Getting it into WordPress | Manual copy-paste & formatting | You wire up the integration | Saved as a draft automatically |
| Featured image & diagrams | A separate tool | You build it yourself | Generated automatically |
| Avoiding duplicate topics | You check manually | You build the system | Checks your whole site, automatically |
| Internal links & structured data | Manual | You build the system | Inserted automatically |
| Day-to-day publishing | You operate it every time | You write your own cron job | Scheduled posts & calendar |
| Rank tracking after publish | A separate tool | You build it yourself | Built in, checked daily |
| Read-through depth | None | None | Measured by H2/H3 heading |
| Deciding the next move from data | You decide | You decide | AI Director does it automatically |
| Turning it into audio or video | Separate work | You build it yourself | Podcast & slides, automatic |
Being honest about this
For writing code, modifying an existing system, or digging into a complex problem through back-and-forth conversation, Claude Code and Codex are the better tool. Use each one for what it's good at.
Sorabun's job is running the article pipeline: planning through post-publish improvement, every day, from inside a browser. That isn't where a CLI tool plays to its strengths.
Pricing
You bring your own API key (Gemini, ChatGPT, Claude, Grok, or DeepSeek), so you only ever pay AI providers for what you actually generate. The plugin fee itself is simple and flat.
Pay annually and get 2 months free. Want to try article generation first? Start with the free Sorabun Lite (coming soon to the official WordPress.org plugin directory).
Pro
- Up to 3 sites
- Every feature + early access to new ones
- Ongoing updates
- Priority support
One-Time
- 1 site
- Every feature included
- 1 year of updates included
(renewal after year one is optional) - Email support
Gemini's API has a free tier. You can start at $0.
Get a key from Google AI Studio without a credit card. Stay inside the free tier and there's no API cost at all.
(Gemini 2.5 Flash)
(~10-15 requests/article)
Free-tier limits for Gemini 2.5 Flash / Flash-Lite as of August 2026 (Google's terms can change; higher-tier Pro models and image generation may require the paid tier).
On the free tier, what you send may be used to improve Google's models. If you're writing about confidential or client work, switch to the pay-as-you-go tier instead, since per-article cost there is still low.
Before you buy, please review our Terms of Service, Legal Disclosure, and Privacy Policy (published in Japanese).
Your Article, Turned Into a Podcast Episode.
Sorabun rewrites an article as a spoken-word script, narrates it with AI voice, and generates the RSS feed a podcast needs. It's ready for Spotify, Apple Podcasts, and Amazon Music, with no extra monthly hosting fee.
solo or two-host
voice cloning supported
the podcast feed itself
worldwide
Zero extra cost to publish
No podcast hosting subscription to buy (typically $10-30/month elsewhere). The RSS feed and the audio files live on your own WordPress install.
Register once, then forget it
Submit your feed URL to each platform one time; every episode after that gets picked up automatically. From the second episode on, you just write the article. Spotify and Apple Podcasts take care of the rest.
Catches Apple's rejection reasons before you apply
Cover-art sizing (a 1400-3000px square) and missing owner info are the usual reasons Apple Podcasts bounces a submission. Sorabun checks both automatically before you apply. Fill in what it flags and you clear review.
Runs fully automatically too
Turn on "publish as soon as the audio is ready," register your keywords, and articles plus episodes stack up daily with nobody touching it. Or review and publish each one by hand. Your call.
From an AI That Writes Articles
to One That Chases Results.
AI Director reads what happens after publish, decides what to do about it, acts on that decision, and checks the outcome against real numbers. Publishing more articles doesn't move rankings by itself. Knowing why one didn't work is what makes the next one better.
read-through, CTA clicks
holding you back
or a better title
number in advance
feeds the next round
It doesn't let the AI grade its own work
Ask an AI "did that work?" and it will almost always say "yes, to some degree," which teaches you nothing. AI Director grades only against measured numbers, then hands the AI a confirmed result and asks it to explain why, not whether.
One change at a time, always
Change three things at once and you'll never know which one worked. AI Director commits to a single bottleneck per round. It looks slower. It compounds faster.
The longer it runs, the more it knows your site
"Top competitors have heavy backlinks, so article quality alone won't close that gap." A missed prediction becomes an input to the next plan. What accumulates isn't generic advice. It's knowledge specific to your site.
It never publishes without you
Articles are always saved as drafts for review before anything goes live (a fully automatic mode is available too). When the data it needs isn't there yet, it stops and tells you what's missing instead of writing something generic.
Written to Rank
and to Get Cited by AI
Beyond classic Google search, Sorabun shapes each article's structure for AI Overviews, ChatGPT, and Perplexity too. Pick from five optimization types depending on what you're targeting.
Sorabun, Next to the Other Ways to Get Content
How writing it yourself, hiring a freelancer, and a generic AI writing tool stack up against running the whole pipeline inside WordPress.
Scroll to see the full table →
| Writing It Yourself |
Freelance Writer |
Generic AI Writing Tool |
Sorabun | |
|---|---|---|---|---|
| Time per article | 3-5 hours | 3-7 days to delivery | Minutes, then you assemble it | Minutes, published straight to WordPress |
| Cost model | Your time | Per-article invoice | Flat monthly fee, model fixed by the vendor | Plugin fee + your own API usage, model of your choice |
| Current, researched info | You research it | Depends on the writer | Varies by tool | Backed by live search, with sources |
| Featured image & diagrams | Separate tool | Separate tool | Varies by tool | Generated automatically, checked and redone if broken |
| Rank monitoring | Separate tool | Separate tool | Varies by tool | Built in, checked daily |
| Pre-publish quality check | You review it | You review it | Varies by tool | Checked automatically before it reaches you |
| Title formulas | You brainstorm | Depends on the writer | Varies by tool | 14 proven patterns, alternates offered |
| Site-wide strategy | You plan it | You plan it | None | A site audit sets your first 5 and shapes the rest |
| Batch creation | None | Possible, if commissioned | Varies by tool | Up to 50 articles at once |
| CTA click tracking | Separate tool | Separate tool | None | Built-in inline CTAs, clicks measured |
| Podcast distribution | None | None | None | Built in |
| Read-through depth | Separate tool | Separate tool | Varies by tool | Measured by H2/H3 heading |
| Acting on the data | You decide | You decide | Varies by tool | AI Director decides and acts automatically |
| AI model | None | None | Fixed by the vendor | Choose from 5 providers |
| Article volume cap | Limited by your time | Limited by budget | Depends on plan | No cap |
Start free with Gemini's free API tier. No writer invoices, no separate rank tracker.
See PricingWhat Early Testers Said
Feedback from testers who used the Japanese version of Sorabun before its public release, translated into English.
Names are shown as initials at each tester's request.
"Honestly, I assumed this was just another AI writing tool at first. But having everything (keyword selection, the body copy, images, formatting) happen inside WordPress itself turned out to be genuinely useful. I still edit the text a little, but it's a huge step up from starting from a blank page."
"Research and outlining used to eat most of my time on every article. Sorabun gets me to a review-ready draft in one pass, so I spend my time refining instead of starting from zero. Being able to check rankings and rewrite after publishing, in the same place, has genuinely helped too."
"The API key setup tripped me up briefly, but once that was done everything made sense. It's less 'hand everything to the AI' and more 'hand off the tedious parts of making an article.' I'd expect it to matter most if you're running more than one site."
"I'd wanted to try podcasting for a while, but scripting, recording, and setting up distribution all looked like a lot of work to start. With Sorabun taking an article all the way to audio, getting an actual show running was a lot easier than I expected. Having another channel to publish to feels great."
These are individual opinions from early testers of the Japanese version of Sorabun. They don't guarantee any particular result.
Frequently Asked Questions
Do I need my own API key? What does it cost?
Yes. One API key for a text-generation AI (Gemini, ChatGPT, Claude, Grok, or DeepSeek). Gemini's API has a free tier you can get without a credit card (as of August 2026, Gemini 2.5 Flash allows up to 1,500 requests/day and 15/minute at no cost). Sorabun uses roughly 10-15 requests per article, so the free tier alone covers dozens of articles a day.
Past the free tier, or on a higher-end model or image generation, you pay that provider's standard usage rates, typically a few cents to a few dollars per article depending on the model, length, and number of images. On the free tier, what you send may be used to improve the model, so for confidential or client work we'd recommend the pay-as-you-go tier instead.
Is it safe to publish generated articles as-is?
By default, everything saves as a draft, so a person reviews it before it goes live. You can even review and edit the outline before the article is written. Fully automatic publishing and scheduled posting are both available if you'd rather hand off the whole loop.
Does it work with any WordPress theme?
Yes. Sorabun works with any theme without breaking your layout. It auto-detects the Cocoon and SWELL theme frameworks and uses their native styling classes for callouts and highlights; on every other theme (including all the major English-language ones), it falls back to universal, theme-agnostic formatting.
Is there an extra cost for rank tracking?
Rank data comes from a SERP API such as Serper.dev, which has a free tier and is inexpensive beyond that. Connect the free Google Site Kit plugin and Sorabun also pulls your real Search Console numbers (impressions, clicks, and average position) at no extra cost.
Can I use an AI model other than Gemini?
Yes. On the Pro plan you can choose ChatGPT, Claude, Grok, or DeepSeek as your writing model (each needs its own API key). Research that depends on Google Search grounding always runs on Gemini for accuracy. You're choosing the model for the writing itself, in a hybrid setup.
Can it create things besides articles?
Yes. On Pro, one click turns a generated article into a social post thread and a YouTube script at the same time. Automatic translation into Japanese, Chinese, Korean, and Spanish is also available, so you can run a multilingual site from a single source article.
Do I need a separate podcast hosting plan?
No. Spotify, Apple Podcasts, Amazon Music, and Audible all work the same way: register your RSS feed URL once, and every episode after that is picked up automatically from then on. Sorabun generates that feed inside your own WordPress install, so there's no hosting subscription (typically $10-30/month elsewhere) and no extra API key to manage. The only ongoing cost is the text-to-speech API you use (Fish Audio or OpenAI TTS), billed by usage.
Does publishing a podcast episode need manual work every time?
No. You register your feed URL with each platform once; every episode after that reaches listeners automatically, usually within a few hours. Turn on "publish as soon as the audio is ready" and the whole path from article to episode runs with nobody touching it. You can also review and publish each episode by hand if you'd rather.
Does it work alongside Yoast SEO or Rank Math?
Yes. Sorabun auto-detects Yoast SEO or Rank Math and writes directly into their meta title and meta description fields. If neither is active, Sorabun outputs its own meta tags instead.
Publishing isn't the finish line.
Decide what to write, then come back and fix it once the numbers come in. Try running that whole loop inside your own WordPress.
Get Started With Sorabun