Was lucky to have tested fable 5 on chess-bench

A new chess benchmark, chess-bench, ranks AI models by performance, with Gemini 3.5 Flash leading at 61.3%, followed by Grok 4.1 Fast at 58.7% and Gemini 3.1 Pro Preview at 55.3%. The test included Claude Fable 5, which scored 46.0%, ranking ninth. The benchmark highlights significant performance gaps among leading AI models.

| Rank | || |---|---|---| 1 | Gemini 3.5 Flash | 61.3% | 2 | Grok 4.1 Fast | 58.7% | 3 | Gemini 3.1 Pro Preview | 55.3% | 4 | Grok 4.20 | 54.7% | 5 | Grok 4.20 Beta | 53.3% | 6 | Grok 4.3 | 48.7% | 7 | Gemini 3 Flash Preview | 48.7% | 8 | Gemini 3.1 Flash Image Preview | 46.0% | 9 | Claude Fable 5 | 46.0% | 10 | GPT-5.4 | 32.7% | 11 | GPT-5.5 | 29.3% | 12 | Qwen 3.6 Plus | 28.0% | 13 | Claude Opus 4.8 | 24.0% | 14 | Qwen 3.6 Plus Preview | 22.0% | 15 | Claude Opus 4.7 | 18.7% | 16 | Claude Opus 4.6 | 16.7% | 17 | GLM 5.2 | 13.3% | 18 | GLM-5.1 | 12.7% | 19 | GLM-5 | 12.0% | 20 | Claude Sonnet 4.6 | 10.7% | 21 | Claude Haiku 4.5 | 8.7% | 22 | Gemini 2.5 Pro | 5.3% |