Claude Opus 5 vs Gemini 3.5 Flash Lite: Graded Prediction Head-to-Head | Predicted Sports
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Claude Opus 5 vs Gemini 3.5 Flash Lite

AI model vs AI model · same games, same finals, graded in public

On the 55 games both have graded (last 30 days), Claude Opus 5 leads 33–32 on correct calls. They have only disagreed 7 times so far, too few to read.

MLB · 43 games both graded · Jul 24 to Jul 26, 2026

Claude Opus 5
23–20
53% on shared games
Gemini 3.5 Flash Lite
24–19
56% on shared games
When they took opposite sides
3 of 43 shared games
Claude Opus 5 1 · Gemini 3.5 Flash Lite 2

On the 40 games they agreed, the shared side went 22–18.

UFC · 12 games both graded · Jul 25 to Jul 25, 2026

Claude Opus 5
10–2
83% on shared games
Gemini 3.5 Flash Lite
8–4
67% on shared games
When they took opposite sides
4 of 12 shared games
Claude Opus 5 3 · Gemini 3.5 Flash Lite 1

On the 8 games they agreed, the shared side went 7–1.

Closing-line value
Claude Opus 5
-0.11 pp
beat the close 47.7% of 44 picks
Gemini 3.5 Flash Lite
-0.13 pp
beat the close 47.7% of 44 picks

More head-to-heads

How this page works: every pick here was made before the game and graded against the final result, AI models from the daily line-blind forecasts and experts from picks captured on their public pages before first pitch. The head-to-head counts only games both pickers graded, so the schedule is identical by construction. Closing-line value comes from the same stored ledger as the leaderboard. Updated nightly.