Who is better at picking games, Claude Opus 5 or Dunkel Index?

On the 107 games both have graded, Claude Opus 5 leads with 66 wins to 43. Every pick is made before the game and graded in public against the final result.

How often do Claude Opus 5 and Dunkel Index disagree?

They took opposite sides on 51 of the 107 shared games, and Claude Opus 5 was right 37 of those 51 times.

← All head-to-heads

Head-to-head

Claude Opus 5 vs Dunkel Index

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

All time Last 30 days Last 90 days

On the 107 games both have graded (all time), Claude Opus 5 leads 66–43 on correct calls. The sharper cut is the 51 games where they took opposite sides: Claude Opus 5 was right 37 of 51.

MLB · 107 games both graded · Jul 24 to Aug 4, 2026

Claude Opus 5

66–41

62% on shared games

Dunkel Index

43–64

40% on shared games

When they took opposite sides

51 of 107 shared games

Claude Opus 5 37 · Dunkel Index 14

On the 56 games they agreed, the shared side went 29–27.

Closing-line value

Claude Opus 5

+0.25 pp

beat the close 54.5% of 235 picks

Dunkel Index

-0.08 pp

beat the close 45.9% of 135 picks

More head-to-heads

Claude Opus 5 vs GLM 5.2 Claude Opus 5 vs Claude Opus 4.8 Claude Opus 5 vs Grok 4.5 Claude Opus 5 vs DeepSeek V4 Pro Claude Opus 5 vs Claude Sonnet 5 Claude Opus 5 vs GPT-5.6 Luna Pro Claude Opus 5 vs Gemini 3.6 Flash Claude Opus 5 vs Kimi K3

Dunkel Index vs GLM 5.2 Dunkel Index vs Claude Opus 4.8 Dunkel Index vs Grok 4.5 Dunkel Index vs DeepSeek V4 Pro Dunkel Index vs Claude Sonnet 5 Dunkel Index vs GPT-5.6 Luna Pro Dunkel Index vs Gemini 3.6 Flash Dunkel Index vs Kimi K3

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.