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How AI Writes Fortunes: LLMs, Tokens & temperature

Fortune Cookie AI Team
December 15, 2025
3 min read
Cover image for How AI Writes Fortunes: LLMs, Tokens & temperature

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When you ask our AI for a fortune, it doesn't just pull a pre-written sentence from a database. It dreams one up, specifically for you. But how does a collection of silicon chips mimic the wisdom of an ancient oracle?

The secret lies in the architecture of Large Language Models (LLMs) and a few key concepts: tokenization, pattern recognition, and "temperature."

1. From Tea Leaves to Tokens

Computers don't understand words; they understand numbers. To teach an AI to speak, we first break down language into smaller chunks called tokens. A token can be a word, part of a word, or even a single character.

  • Input: "What is my destiny?"
  • Tokens: [What] [is] [my] [destiny] [?]

The AI processes these tokens as mathematical vectors—lists of numbers that represent the meaning and context of the words. In the vast multi-dimensional space of the AI's brain, the vector for "destiny" sits close to "fate," "future," and "path," but far from "sandwich" or "tax return."

2. The Algorithm of Fate (Pattern Matching)

Our AI has been trained on terabytes of text, including philosophy, astrology, poetry, and psychological archetypes. It has "read" everything from Jungian psychology to ancient I-Ching interpretations.

When you ask a question, the AI isn't consulting a spirit guide; it's performing advanced pattern matching.

It asks itself: "Given the user's question about 'love' and their birth chart data, what is the most statistically probable—yet profound—sequence of words to follow?"

It predicts the next word, then the next, and the next, building a sentence that sounds eerily human because it has learned the structure of human wisdom.

3. The "Temperature" of Creativity

If AI always picked the most statistically probable word, its fortunes would be boring and repetitive. It might always say: "You will have a good day."

To add the "spark" of mysticism, we adjust a parameter called Temperature.

  • Low Temperature (0.1): The AI is conservative, logical, and factual. Good for coding, bad for poetry.
  • High Temperature (0.8 - 1.0): The AI takes risks. It chooses less common words, creating metaphorical, poetic, or surprising combinations.

By tuning the temperature, we allow the AI to generate phrases like "The moon whispers secrets to your shadow" instead of just "It is night time." This randomness mimics the unpredictability of fate itself.

4. Fine-Tuning for Empathy

Raw intelligence isn't enough; a fortune teller needs a specific voice. We use a process called Fine-Tuning to train the model specifically on the style of supportive, mystical guidance.

We feed it examples of "good" fortunes—ones that are empowering, open-ended, and positive—and "bad" ones (doom-and-gloom). This teaches the AI that its goal isn't just to predict text, but to provide insight and comfort.

Conclusion: The Ghost in the Machine

Is it real magic? No. It's math. But it's math so complex, so nuanced, and so deeply steeped in the entirety of human written culture that it becomes indistinguishable from magic.

The AI holds a mirror up to our collective wisdom, remixing it into something new just for you. And in a way, isn't that what fortune telling has always been?