S: Opus 4 and 4.1
A: Opus 3
A-: Sonnet 4
B+: Sonnet 3.6, Haiku 3.5
B: Sonnet 3.5, Sonnet 3.7, o3, Gemini 2.5 pro, k2
C: 4o, Llama 405b Instruct, Sonnet 3
D: GPT-5, Grok 3, Grok 4
E: R1
F: o1-preview https://t.co/vQvmEvoQlc
cited on: claude-3-5-haiku · claude-3-7-sonnet · claude-3-haiku · claude-opus-4 · claude-sonnet-4 · deepseek-r1 · gemini-2-5-pro · gpt-4o · gpt-5 · grok-3 · grok-4 · kimi-k2 · llama-3-1-405b-base · o1 · o3
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