Claude Opus 4.8 vs GLM 5.2: Graded Prediction Head-to-Head | Predicted Sports
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Claude Opus 4.8 vs GLM 5.2

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

All time Last 30 days Last 90 days

On the 587 games both have graded (all time), Claude Opus 4.8 leads 352–340 on correct calls. The sharper cut is the 68 games where they took opposite sides: Claude Opus 4.8 was right 40 of 68.

MLB · 523 games both graded · Jul 2 to Aug 13, 2026

Claude Opus 4.8
302–221
58% on shared games
GLM 5.2
291–232
56% on shared games
When they took opposite sides
59 of 523 shared games
Claude Opus 4.8 35 · GLM 5.2 24

On the 464 games they agreed, the shared side went 267–197.

UFC · 64 games both graded · Jul 11 to Aug 8, 2026

Claude Opus 4.8
50–14
78% on shared games
GLM 5.2
49–15
77% on shared games
When they took opposite sides
9 of 64 shared games
Claude Opus 4.8 5 · GLM 5.2 4

On the 55 games they agreed, the shared side went 45–10.

Closing-line value
Claude Opus 4.8
+0.25 pp
beat the close 54.5% of 523 picks
GLM 5.2
+0.22 pp
beat the close 53.9% of 523 picks

More head-to-heads

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

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.