How to Generate Fictional Languages with AI
What if your world could speak before you draw a single map? What if names tasted right on the tongue, and a greeting hinted at old wars?
Most readers can feel when a language is real. They hear the rhythm. They trust the scene. You can build that fast, without losing craft. A language generator helps with the grind while you guard the voice.
👉Here’s the plan. We set simple sounds. We choose word order that fits your culture. We shape grammar and vocabulary you will actually use. Then we test lines in Summon Worlds, keep notes tidy, and grow a lexicon that stays true.
But there’s a catch. One wrong rule and the spell breaks. Names clash. Sentences wobble. Your world goes quiet.
So let’s fix that. In the guide below, you’ll get a lean system that works today. No fluff. No filler. Just steps that turn ideas into speech. By the end, you won’t hold a list, you’ll hear a voice.
👇Ready to make your world talk? Keep reading.
Table of Contents
What Makes a Strong Fictional Language
A strong conlang has two traits. It sounds right. It stays steady. Every word feels like it belongs. Sentences follow a rhythm your ear starts to trust. That happens when you keep rules small and firm. It also happens when you test those rules in scenes, not just in lists.
Think like a maker. Pick a goal for the scope. Names and curses only? Short lines for play? Or full scenes and songs? Scope guides how many rules you really need.
Core Building Blocks You Really Need

🔊Sounds
Choose a short set of vowels and consonants. Three to five vowels are fine. Eight to twelve consonants are plenty. This keeps your sound clean and learnable. Write them down once. Use them for every new word.
🔡Syllables
Decide how sounds can sit together. Common shapes are V, CV, and CVC. You can allow blends like CCV or ban them for a softer feel. The rule here is simple: your list of shapes must match every word you build. That one rule makes the voice click.
📝Writing
Pick how your sounds map to letters. Keep one symbol per sound when you can. If you add marks, define them once and reuse them. The goal is clear spelling that matches your sound rules.
🌱Roots and patterns
Create 20–50 short roots for key ideas in your world. Then set a few endings or prefixes to make tools, places, people, or actions. Stick to those patterns. You’ll grow words fast, and they’ll still feel related.
👉 Read our article about How author can use AI for worldbuilding
Word Order, Grammar, and Vocabulary (Easy Rules)
Choose your base order
Pick one basic order and commit. SVO (“I eat rice”). SOV (“I rice eat”). VSO (“Eat I rice”). Most languages use SVO or SOV. VSO is less common but crisp and musical. This choice sets the beat of every line.
Keep grammar small and visible
Add marks only if you use them often.
- Plural: a short suffix like -o or -im.
- Tense or aspect: one clear marker, like -a for past.
- Case or role: optional, and only if needed.
Write two examples for each mark. Place them where a reader can see them at a glance.
Grow words by rule, not at random
Use your roots and patterns to build sets. If -an makes a place, then kal (sea) becomes kalan (coast). If -er makes an agent, then sar (trade) becomes sarer (trader). Keep a single list. Add a note for each family of words. This is how you get a unique language that stays coherent as it grows.
Why Use a Language Generator
A language generator cuts the busywork. It can propose legal syllables, draft word lists from your sound set, and apply your patterns in batches. You still guide style. You still pick meanings.
But you get options fast, and you keep your rules tight. If you want more flavor for fantasy settings, a fantasy language generator can push shapes that feel old, airy, or rugged, based on the rules you give it.
👉 Read our article about Why AI is the perfect fantasy writing assistant
Summon Worlds Workflow: Quick Start Guide

1) Set your sound sheet
Open a new collection and add one note:
- Vowels you allow.
- Consonants you allow.
- Syllable shapes you allow.
Keep it short. This sheet becomes your guardrail.
2) Generate candidates
Use your favorite language generator to propose 100 legal forms. Filter them by look and sound. Keep 40 that you like. Store them as roots in your collection. Tag by theme, nature, people, time, trade, motion.
3) Choose word order and test lines
Write three sample sentences with your chosen order:
- “I see the river.”
- “The old guard opens the gate.”
- “We trade at dawn.”
Open Character Chat with a “court scribe” or “street vendor” persona. In Character Instructions, add style rules like “SOV. No clusters. All words end in a vowel.” Chat three lines. If it flows, keep it. If not, tweak and try again. Summon Worlds remembers your world’s terms, so style stays steady.
4) Lock grammar and vocabulary rules
Create a “Grammar” note. List each mark with a two-word gloss and two examples. Keep endings short and visible. Add 25–50 derived words from your roots using the same patterns. Use Collections to group phrases, names, and signs.
5) Give it a voice and a look
Pick a chat Voice that fits your culture. Harsh and clipped? Clear and bright? Hear how stress lands on your syllables. Use Image Generation to mock up banners, seals, or wayfinding signs with your script. Save the best images in your collection for quick reference.
6) Share when ready
Keep drafts private until the system feels smooth. When you publish, others can follow, try your phrases, and chat with your characters. That feedback will show you which lines sing and which need a trim.
👉 Read our article about The future of storytelling and worldbuilding
Add History with Simple Sound Changes
Want layers? Add two or three sound changes from a “proto” stage to the modern one. Apply them in order to your root list. Use the older forms for ancient names and songs. Use modern forms for street talk. Mark the changes in one short note. This trick gives depth without heavy grammar.
Script and Naming Readers Learn Fast

Pick one of three paths:
- Plain Latin: Fast to type. Easy to share.
- Latin with marks: A few diacritics for tone. Still readable.
- A full script: Great for art and mood. Use it on coins, banners, and maps.
Whichever you pick, make a 10-letter chart and two sample lines. Keep shapes simple and repeated. That repetition becomes your visual brand.
Common Mistakes and Fast Fixes
- Too many sounds. Cut to five vowels and under a dozen consonants.
- Rules you forget to use. Delete them.
- English bias. Try SOV or VSO. Or ban clusters.
- Random words. Build from roots and patterns.
- Scattered notes. Keep rules, examples, and lists in one collection.
🧭 Ready to Build Your Language Today?

👉One last question: when will your world speak?
You already have the pieces, clean sounds, firm word order, and lean grammar and vocabulary. Now put them to work. Use a language generator to draft fast. Keep your taste in charge. Hear the rhythm. Trim the noise. Lock the rules.
Open Summon Worlds. Start a fresh collection. Add ten roots. Write three lines in character. Test them in chat. If a sentence stumbles, fix the rule, not the line. Do it again. In minutes, you’ll hear a voice your table will remember.
This is your moment. Give your setting a tongue your players will quote.
- Download Summon Worlds and build tonight.
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