AI for Writing Like a Human: Keep Your Own Voice

AI writing sounds like AI because it defaults to the most common phrasing for any topic: the sentence structures that appear most often in its training data, the transitions every article uses, the filler phrases that signal helpfulness without adding information. Your voice is the set of things you do differently.

Tools like fenbs let you save approved voice rules and examples so any AI app you use reads the same standard. Without a shared record, each session starts from a generic default and you reconstruct the voice from scratch each time.

Why AI writing sounds like AI

Generic AI prose has recognizable patterns: sentences that start with "It is important to note that...", transitions like "In conclusion" and "Furthermore", and closings that circle back to the introduction without adding anything. These are the statistically common patterns, not the interesting ones.

The problem is not that the AI is bad at writing. The problem is that without specific instructions, it has no reason to deviate from the common patterns. Your voice is deviation: the concrete detail instead of the abstract claim, the short sentence instead of the long qualification.

How to give the model your voice

The fastest way to communicate a voice is to show it. Take a paragraph from your own writing that represents how you sound and label it "write in this style." The AI will match the register more reliably from an example than from a description of its qualities.

If you do not have a good example, write one. It does not need to be polished: fifty words that sound like you is enough to anchor the pattern. A before-and-after pair is even more useful: the before shows a generic version of the same content, the after shows your version.

• Take one paragraph from an email, a report, or a message you are happy with.
• Paste it into the prompt with the label "Match this voice:".
• Test the output against the original. Where does it revert to generic phrasing?
• Add a rule for each pattern you want to preserve: "avoid sentences that start with 'It is important to'".

Prompts that replace generic phrases

Rather than asking the AI to "sound more human," ask it to replace specific patterns:

• "Replace every transition that starts a paragraph with 'Furthermore' or 'In addition'."
• "Replace every sentence that starts with 'It is' or 'There are'."
• "Replace every closing sentence that restates the opening with a sentence that adds something new."
• "Remove every phrase that means 'I am going to tell you something' without actually telling you it."

The prompts above share a common structure: they ask for replacement rather than removal. A vague instruction like "make this sound more human" leaves the decision to the AI. A replacement instruction like "every sentence that starts with There are must be rewritten to name a specific subject" leaves no decision: either the change was made or it was not. That precision is what makes a style instruction hold across sessions and across team members who did not write the original instruction.

These are not style preferences: they are patterns the AI can check mechanically. Each replacement forces a more specific sentence into the place the generic one held.

Checking the output against your standard

After generating a draft, check it sentence by sentence against the patterns you are trying to avoid. The first pass is often good on the obvious ones and misses the subtler ones: the hedge buried in the middle of a sentence, the abstract noun where a concrete verb would be more direct.

Read the draft aloud. The sentences that slow you down or feel awkward to say are usually the ones that revert to a generic register. Those are the places to rewrite or ask the AI to rewrite with a specific instruction.

How to do this with fenbs

1. Create a free account and add a project for the writing work.
2. Add the voice rules and the example paragraph to Skills and prompts in fenbs under a name like "Brand voice" or "Personal writing style".
3. Add the decisions about which patterns to avoid to Decisions and rules so the instruction is preserved separately from the example.
4. Connect your AI app over MCP from Integrations so it reads the voice rules and example at the start of each writing session.

When to stop asking the AI and write it yourself

AI writing with a voice instruction works well for content with a clear structure and a relatively predictable form: emails, reports, explanations, summaries. It works less well for content where the voice is inseparable from the specific choices you make: a personal essay, an argument that depends on a specific sequence of ideas, or content where the exact word matters.

In those cases, use the AI for a first draft and rewrite the parts that matter. The time saved on the structural draft is often enough to justify the approach. For more on where human judgment matters most in AI-assisted work, see human in the loop ai examples.