# Opinion: author tests ChatGPT, Claude, Gemini predicting UFC 331 fights

Digest AI · Research · published 2026-09-19T22:19:00Z

Canonical: https://digestai.news/story/opinion-author-tests-chatgpt-claude-gemini-predicting-ufc-331-fights

## Summary

The author launched a new series called “Watching Martial Arts with AI” and used ChatGPT, Claude and Gemini to predict the five main‑card fights of UFC 331. The author entered his own predictions a few minutes later at 10:47 AM, so the first installment records only the AI predictions as the official data.

Two of the matches produced unanimous winner predictions from all four parties, one match ended in a 2‑2 split, and in the co‑main and main events all three AIs agreed on a different winner than the author. The author notes that the AIs tend to base their calls on overall ability and reproducibility, while he gives more weight to experience and the possibility of an upset. He calls the experiment “MMA Prediction Engine v0” and plans to tighten prompts, reference data and timestamps for future installments.

Future episodes will cover additional UFC and RIZIN events, keeping the same four participants – the three AIs and the author – to see whether AI or human intuition proves more reliable over time.

## Key points

- Two matches had unanimous winner predictions from all parties; one split 2‑2; the co‑main and main events had all three AIs agree against the author.
- The author calls the experiment “MMA Prediction Engine v0” and plans to standardize prompts, data and timestamps for future installments.

## Why it matters

Shows how large language models can be applied to sports forecasting, revealing strengths and blind spots, and provides a public benchmark for AI versus human intuition in MMA.

## Sources

1. [Watching Martial Arts with AI #01: Pre-Fight Edition When I predicted UFC 331 with ChatGPT, Claude, and Gemini, the main and co-main events became '3 AIs vs. Me'](https://note.com/tsf_mpt/n/n1f450c82875d?hl=en) (note.com, 2026-09-19)

## Cite

Digest AI, "Opinion: author tests ChatGPT, Claude, Gemini predicting UFC 331 fights", 19 September 2026, https://digestai.news/story/opinion-author-tests-chatgpt-claude-gemini-predicting-ufc-331-fights

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