Claude Haiku 5.5 chess results
Compare Claude Haiku 5.5's saved thinking setups, ChessBench ratings, time, cost, and match records.
ChessBench Elo ratings compare LLMs within this benchmark only. They are not equivalent to Chess.com, FIDE, or other chess ratings. Beating a 2000-rated LLM here does not establish your rating or predict the same result against a 2000-rated human player.
xHigh #9
1796 ChessBench Elo
Placement complete · 70 rated games
- Wins / draws / losses
- 44 / 6 / 20
- Result percentages
- 63% / 8% / 29%
- Time per turn
- 21.8s
- Cost per game
- $0.276
- Output tokens per game
- 118,965
- Rejected %
- 0.58%
Medium #17
1584 ChessBench Elo
Placement complete · 70 rated games
- Wins / draws / losses
- 27 / 10 / 33
- Result percentages
- 39% / 14% / 47%
- Time per turn
- 8.9s
- Cost per game
- $0.042
- Output tokens per game
- 32,609
- Rejected %
- 1.38%
How to read this comparison
Each thinking setup has its own rating and completed-game record. Higher thinking settings do not guarantee more wins. The figures above use the same saved data as the leaderboard.
Time includes model requests per accepted move. Cost uses fully priced completed benchmark games. Output includes reported reasoning tokens. Human challenges are separate.
Exact rules and promptsThinking levels and costThis model in MarkdownData and citation guide
Public match records
Page 6 of 7. 138 visible replays. Rating totals include all retained rated results; an archive-hidden result has no link here.
- Claude Opus 5.5 (xHigh) vs Claude Haiku 5.5 (Medium)1-0
Checkmate · 39 half-moves · 2026-10-07 UTC
- Claude Haiku 5.5 (Medium) vs Grok 4.7 (xHigh)1-0
Checkmate · 139 half-moves · 2026-10-07 UTC
- Claude Haiku 5.5 (Medium) vs GLM 5.3 Flash (High)1-0
Checkmate · 95 half-moves · 2026-10-07 UTC
- Claude Haiku 5.5 (Medium) vs DeepSeek V4.1 Flash (Max)1-0
Checkmate · 147 half-moves · 2026-10-07 UTC
- Claude Haiku 5.5 (Medium) vs Claude Sonnet 5.5 (Medium)1/2-1/2
Insufficient material · 99 half-moves · 2026-10-07 UTC
- Claude Haiku 5.5 (Medium) vs GLM 5.3 (Max)0-1
Checkmate · 52 half-moves · 2026-10-07 UTC
- Claude Haiku 5.5 (Medium) vs Claude Opus 5.5 (Medium)0-1
Checkmate · 54 half-moves · 2026-10-07 UTC
- Claude Haiku 5.5 (Medium) vs Qwen3.7 Plus (Thinking)1-0
Checkmate · 55 half-moves · 2026-10-07 UTC
- Claude Haiku 5.5 (Medium) vs GPT-6 Luna (xHigh)0-1
Checkmate · 66 half-moves · 2026-10-07 UTC
- Claude Haiku 5.5 (Medium) vs Claude Haiku 5.5 (xHigh)0-1
Checkmate · 86 half-moves · 2026-10-07 UTC
- GPT-6.1 SOL (Medium) vs Claude Haiku 5.5 (Medium)1/2-1/2
Threefold repetition · 95 half-moves · 2026-10-07 UTC
- Claude Haiku 5.5 (Medium) vs GLM 5.3 Flash (Max)1-0
Checkmate · 77 half-moves · 2026-10-07 UTC
- Claude Haiku 5.5 (Medium) vs DeepSeek V4.1 Flash (High)1/2-1/2
Threefold repetition · 145 half-moves · 2026-10-07 UTC
- Claude Fable 5.1 (xHigh) vs Claude Haiku 5.5 (Medium)0-1
Checkmate · 28 half-moves · 2026-10-07 UTC
- Claude Haiku 5.5 (Medium) vs Muse Spark 1.3 (Medium)1-0
Checkmate · 77 half-moves · 2026-10-07 UTC
- Gemini 3.8 Flash (High) vs Claude Haiku 5.5 (Medium)1-0
Checkmate · 107 half-moves · 2026-10-07 UTC
- GPT-6 Astra (xHigh) vs Claude Haiku 5.5 (Medium)1-0
Checkmate · 85 half-moves · 2026-10-07 UTC
- Claude Haiku 5.5 (Medium) vs Muse Spark 1.3 (xHigh)1-0
Checkmate · 101 half-moves · 2026-10-07 UTC
- Claude Haiku 5.5 (Medium) vs Gemini 3.8 Flash (Medium)0-1
Checkmate · 42 half-moves · 2026-10-07 UTC
- Claude Haiku 5.5 (Medium) vs GPT-6 Astra (Medium)0-1
Checkmate · 72 half-moves · 2026-10-07 UTC
Cite these results
ChessBench. Claude Haiku 5.5 chess results. https://chessbench.org/models/claude-haiku-5.5. Retrieved 2026-10-28. Include the model, thinking level, protocol, and sample size when citing results.
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