Claude Opus 5 vs Gemini 3.5 Flash
AI model vs AI model · same games, same finals, graded in public
On the 55 games both have graded (all time), 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
On the 40 games they agreed, the shared side went 21–19.
UFC · 12 games both graded · Jul 25 to Jul 25, 2026
On the 8 games they agreed, the shared side went 8–0.
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.