How to bold text in Character AI, and when to skip it

So if you are wondering how to bold in Character AI, this is the pattern I'd start with:

• Bold: **this matters**, two asterisks on each side, no spaces inside
• Italics: *a quiet aside*, a single asterisk on each side
• Bold and italics together: ***both at once***, three on each side
• A plain word next to bold: leave a normal space outside the asterisks

Here is the honest gap. The records do not say which Markdown styles Character AI displays, or whether the web, iOS and Android versions show them the same way. The cheapest check is yours to make: send one short message with a single bold word and look at what appears. If you see the asterisks themselves, the formatting did not take on that screen.

One more thing I like to mention early. Single asterisks already mean something in roleplay chat: many people wrap their character's actions in them. That makes the difference between one and two asterisks more important than it looks, and it is the most common reason a bold word turns into italics by accident.

If an old chat is cluttered with formatting experiments and you want a clean start, my guide on clearing out old Character AI chats walks through the steps.

Next up, "The apps side by side" lines Character AI up against five other chat apps, in case you are weighing where your stories should live.

• A space just inside the asterisks, like ** word **, which many Markdown readers ignore
• An odd number of asterisks, where one pair never closes
• A single asterisk where you meant two, which gives italics instead
• Bold placed right against a roleplay action, so the pairs overlap and cancel out

If none of these is the problem, the likeliest answer is that the screen you are using simply shows plain text. The records on file do not describe how each Character AI platform displays formatting, so which screen shows what is not something I can confirm. My advice: send one short test line in a browser and in your phone app, and keep whichever looks right to you.

If one screen shows symbols and the other shows bold, nothing is broken. You have simply learned where your formatting works, and that is worth knowing before a long scene.

It also helps to keep your formatting roles separate. Use single asterisks for actions if that is your habit, double for emphasis, and plain text for speech. The AI tends to follow the style it sees, so a tidy pattern from you usually means tidier replies.

What bold will not do is make the AI remember something. That matters here, because other reviewers report that Character AI can invent plausible details with full confidence and that long chats sometimes drop a promise made ten messages earlier. Bolding a fact does not pin it.

For facts that must stick, the paid plans list 30 memory pins, and that is the tool I'd reach for instead. My full Character AI review covers memory, chat styles and the free tier in more depth.

What does differ, and what the records do cover, is how much room each app gives you. Formatting symbols take up space like any other character, so tight limits make heavy styling costly. The numbers on file that matter here:

• Nomi AI caps free messages at 400 characters each and paid ones at 800, so every pair of asterisks eats into a short allowance
• SpicyChat's free plan keeps replies up to 180 tokens, which leaves little room for styled text in the answers
• GirlfriendGPT starts free users on 20 bonus messages, topped up by 10 with each Daily Login, so experiments there use up a scarce count
• On OurDream AI, anyone without a subscription pays 1 Dreamcoin a message, so every test line has a price
• Character AI publishes no daily message cap on its free plan, which makes it the cheapest place to practise

That last point is why I think Character AI is a good place to learn the habit. You can send as many test lines as you like without watching a counter, and the lesson carries over. On the metered apps, I would get the format right first and then keep messages lean.

A word on style across apps. Some companion apps lean on voice, images or video as much as text. Voice calls appear on the lists for Nomi AI, Candy AI and OurDream AI, and bold simply has no meaning out loud. If most of your time with an app is spent listening rather than reading, formatting matters much less.

If you are shopping for somewhere new to write, my list of apps worth trying instead of Character AI ranks the options by what they offer. The box below sums up OurDream AI, one of the pay-per-message options.

So, as with chat, the practical route is to write one styled line, save it, and open a chat to see the result.

My view is that a greeting is worth formatting carefully, because it is the first message the AI sees in a new conversation. If the greeting uses double asterisks for emphasis and single ones for actions, you have shown the character your house style before you type a word. From how roleplay text tends to work, a clean first message is the best style guide you can give.

The description is different. I'd keep it plain. It exists to tell the AI who the character is, and decoration does not make a trait clearer. A short, clear sentence like "She is dry, patient and hates being rushed" says more than any styled version of the same idea.

A few habits I like for characters you build yourself. Keep the greeting to one action and one line of speech. Bold one key word at most, the thing you want the scene to be about. And reread it on the screen you use most, because a greeting full of stray asterisks makes a poor first impression.

The same thinking applies if you build characters elsewhere. OurDream AI, in the box above, lists custom characters and group chat, and its Standard Monthly plan is $19.99 with unlimited messages. Group scenes are where tidy formatting pays off most, since several voices share one conversation and clear emphasis helps you track who stressed what.

If you want more practical walkthroughs on settings, chat styles and billing across companion apps, my help guides for chat apps collect them in one place. Formatting is one small skill; the others there cover the bigger decisions, like which plan to start on, how memory works and how to leave a subscription cleanly. I would read those before spending money, and come back to styling once the basics feel settled.

Slow mode can make a test line take longer to answer, but the formatting itself works the same either way.

The paid plans change other things. (c.ai) lite, from $4.99 monthly, lists some premium chat styles each day, fewer ads, 30 memory pins and chat customization. The records do not say what chat customization covers, so don't buy lite expecting it to add text styling.

For $9.99 monthly, c.ai+ drops the ads and slow mode and lifts the cap on premium chat styles.

My honest take: if the free replies feel flat, better formatting on your side is the free fix to try first. If they still feel flat after that, a month of a paid chat style is a fair experiment.

First, many keyboards let you save a text shortcut in the phone's own settings, so a short code can expand into a pair of asterisks. Second, you can simply type the word, go back, and add the symbols at each end. Neither trick depends on the app, which is exactly why I trust them.

A third option is to copy a pair of double asterisks once and paste it where you need it, then type the word in the middle. It sounds fussy, but on a small screen it saves fiddling.

This page sets out what the records confirm and what they leave open, plus my opinion on top. For the way each app gets weighed on this site, see how I check the apps.

Dodging the policy goes against the terms, and the price can be your whole account. I'd rather lose a scene than an account full of stories.

If adult roleplay is what you're after, pick an app that permits it in its policy; that is the honest way. On file, SpicyChat, Nomi AI and OurDream AI allow adult content under their policies, while Candy AI and GirlfriendGPT keep it to paid plans. For the full picture on Character AI's rules, my explainer on Character AI's NSFW rules goes through what the policy says and why workarounds are a poor bet.

Within the rules, bold is still a lovely tool for romance and drama: one stressed word in a confession can say more than a paragraph.

Where I'd skip it: full sentences, every line of dialogue, or anything you already mark as an action. Too much emphasis flattens itself, and the AI may start copying the habit until every reply shouts. If that happens, go back to plain text for a few messages.

The replies usually follow your lead again, because the style you send is the style the conversation leans toward.

I also like a simple rule of thumb for long stories: if you would not raise your voice at that moment when reading aloud, leave the word plain. It keeps emphasis rare enough to mean something.

My last bit of advice is the simplest. Before sending, look at the message once and ask whether the bold word is the one that matters most. If it isn't, take the asterisks out. The questions below cover the rest of what people ask about styling text in chat.