Claude Opus 4.8 vs Dimers: Graded Prediction Head-to-Head | Predicted Sports
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Claude Opus 4.8 vs Dimers

AI model vs Dimers ยท same games, same finals, graded in public

All time Last 30 days Last 90 days

On the 236 games both have graded (all time), Claude Opus 4.8 leads 138โ€“134 on correct calls. The sharper cut is the 38 games where they took opposite sides: Claude Opus 4.8 was right 21 of 38.

MLB ยท 236 games both graded ยท Jul 20 to Aug 6, 2026

Claude Opus 4.8
138โ€“98
58% on shared games
Dimers
134โ€“102
57% on shared games
When they took opposite sides
38 of 236 shared games
Claude Opus 4.8 21 ยท Dimers 17

On the 198 games they agreed, the shared side went 117โ€“81.

Closing-line value
Claude Opus 4.8
+0.30 pp
beat the close 55.9% of 431 picks
Dimers
+0.32 pp
beat the close 57.4% of 237 picks

More head-to-heads

Claude Opus 4.8 vs GLM 5.2 Claude Opus 4.8 vs Gemini 3.5 Flash Claude Opus 4.8 vs Grok 4.5 Claude Opus 4.8 vs DeepSeek V4 Pro Claude Opus 4.8 vs Claude Sonnet 5 Claude Opus 4.8 vs GPT-5.6 Luna Pro Claude Opus 4.8 vs Gemini 3.5 Flash Lite Claude Opus 4.8 vs Gemini 3.6 Flash
Dimers vs GLM 5.2 Dimers vs Gemini 3.5 Flash Dimers vs Grok 4.5 Dimers vs DeepSeek V4 Pro Dimers vs Claude Sonnet 5 Dimers vs GPT-5.6 Luna Pro Dimers vs Gemini 3.5 Flash Lite Dimers vs Gemini 3.6 Flash

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.