Bertha AI puts an AI writing assistant inside the WordPress block editor. Unlike AI plugins that require switching to a separate interface, Bertha works as a sidebar panel while you write – you describe what you want, Bertha generates it, and you edit or regenerate without leaving the editor. For writers who spend significant time in the WordPress block editor, this embedded workflow matters more than raw generation quality differences between similar AI tools.
What Bertha Does Well
Bertha excels at the specific, bounded writing tasks that consume disproportionate time in content production: writing five headline variations and picking the best, generating a paragraph introduction that sets up an article correctly, creating a product description that hits specific attributes, writing meta descriptions for a batch of pages. These are tasks where human writers stall, stare at a blank field, and produce mediocre output – tasks where AI generates decent options quickly and the human’s job becomes selection and refinement rather than creation from nothing.
The tool is also good at rewriting – take a paragraph that is technically correct but poorly worded, ask Bertha to make it clearer or more concise, and the rewrite is usually an improvement. This editing assistance function often delivers more consistent value than generation from scratch.
Step 1: Connect Your Account
Bertha AI requires an account at bertha.ai. The plugin connects to Bertha’s servers rather than directly to OpenAI – Bertha manages the AI provider relationship. After installing the plugin from WordPress.org and activating, go to Bertha -> Settings and enter your Bertha API key from your account dashboard. The key connects your WordPress site to your Bertha subscription’s word credits.
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Step 2: Using Bertha in the Block Editor
With Bertha active, a Bertha icon appears in the block editor toolbar. Click it to open the Bertha sidebar. The sidebar has several tools:
- Write for me – describe what you want written, Bertha generates it. Best for specific bounded requests rather than “write me a blog post about X.”
- Expand – select a short passage and ask Bertha to expand it into more detail
- Summarise – condense a long section into a shorter version
- Rewrite – rephrase selected text in a different style or with different emphasis
- Headlines – generate multiple headline options for a blog post or article
- Intro paragraphs – generate opening paragraphs for a piece
- CTAs – generate call-to-action text variations
The output appears in the sidebar for review before inserting into the editor. You can regenerate with the same prompt or adjust the prompt and try again without committing the output to your content.
Step 3: Product Descriptions and WooCommerce
Bertha has specific tools for WooCommerce product descriptions. On a product edit page, Bertha detects the product context and can generate descriptions from the product title and any attributes already entered. Enter the product name and key features in the Bertha sidebar, select the description length and tone, and generate. The output is a starting point for a human editor to refine rather than finished copy.
Getting Better Results From Bertha
The quality of AI output scales directly with the specificity of the instruction. “Write a product description” produces generic output. “Write a 100-word product description for a waterproof hiking boot aimed at weekend hikers. Emphasise comfort on long trails and the two-year warranty. Avoid technical jargon.” produces something closer to usable copy.
Treat Bertha as a first draft engine. The most efficient workflow: generate a rough draft quickly, edit aggressively, add specific details and claims that only a human with product knowledge can add (customer stories, specific measurements, brand voice), and then publish. Editing a mediocre first draft is faster than writing from nothing even when the draft needs significant work.
Prompt Examples That Actually Work
The single biggest factor in Bertha output quality is prompt specificity. Here are prompts that consistently produce usable first drafts versus the vague versions that produce generic output:
Bad: “Write a product description for a coffee maker.”
Good: “Write a 90-word product description for the BrewMax Pro 3000 coffee maker. Target audience: home baristas who care about grind consistency. Key features: 15-bar pressure, 60-second heat-up, compatible with both pods and ground coffee. Tone: enthusiastic but not salesy.”
Bad: “Write an intro for my blog post about SEO.”
Good: “Write a 3-sentence introduction for a blog post titled ‘Why Your WordPress Site Ranks on Page 3’. The post is aimed at small business owners who have tried basic SEO without success. Start with a relatable problem, not a statistic.”
Bad: “Give me 5 email subject lines.”
Good: “Write 5 subject lines for a Black Friday email promoting 30% off all online courses. Audience: existing customers who bought from us before. Avoid emojis. One should create urgency, one should focus on the discount, one should be curiosity-based.”
The pattern is always the same: format, length, audience, tone, and what to avoid. Bertha generates faster than it takes to write these details – the upfront specificity pays off in fewer regenerations.