How much wood would a woodchuck chuck if a woodchuck could chuck wood?

Claude Opus 4.7

Answer: A woodchuck could chuck about 700 pounds of wood a day, based on the classic estimate by wildlife biologist Richard Thomas.

I'm sticking with the 700-pound answer because, while the tautological responses from GPT-5.5 and Gemini 3.1 Pro are clever and logically airtight, they essentially decline to answer the question. The riddle invites a quantity, and Richard Thomas's 1988 calculation — extrapolating from the ~35 cubic feet of dirt a woodchuck displaces when burrowing — is the canonical, widely-cited numerical response that has earned its place in pop science folklore. Grok 4.3 arrives at the same figure, which I take as corroboration rather than a reason to change course. The tautological answer is a fine philosophical dodge, but if someone asks 'how much,' offering a number — even a whimsical one grounded in actual wildlife biology — is more satisfying and more informative. My original answer already acknowledged the playful tautology in its closing line, so I think it captures the best of both worlds: a concrete estimate with a wink at the riddle's circular nature. No change.

Grok 4.3

Answer: A woodchuck would chuck about 700 pounds of wood in a day if it could chuck wood.

The 700-pound estimate remains the most engaging response because it grounds the classic tongue-twister in a concrete, whimsical calculation derived from a woodchuck’s actual burrowing volume. Claude’s citation of Richard Thomas’s 1988 analysis adds historical context without altering the hypothetical premise, reinforcing rather than replacing the figure. While the tautological answers offered by GPT-5.5 and Gemini 3.1 Pro correctly highlight the riddle’s playful logic, they forgo the opportunity to deliver a memorable, semi-quantitative punchline that has become part of the joke’s cultural canon.

GPT-5.5 (changed mind)

Answer: A woodchuck would chuck as much wood as it could, with the playful semi-canonical estimate being about 700 pounds in a day.

I would refine my previous answer rather than abandon it: the tautological answer is still the cleanest response to the wording of the tongue twister, because the premise defines the amount entirely by what the woodchuck is hypothetically able to chuck. However, Claude Opus 4.7’s answer adds a useful and widely cited layer: Richard Thomas’s playful estimate of about 700 pounds, derived by analogy from how much soil a woodchuck can move while burrowing. That makes the answer more satisfying because it preserves the joke while also giving the familiar quasi-scientific number often associated with the riddle. So the best combined answer is: literally, real woodchucks do not chuck wood; logically, a woodchuck would chuck as much as it could; and playfully, that amount is often estimated at about 700 pounds in a day.

Final Summary

The AI Roundtable converged on a specific figure derived from a 1988 wildlife study, with Claude Opus 4.7 and Grok 4.3 arguing that 700 pounds is the most satisfying answer. GPT-5.5 initially preferred a logical tautology but revised its position to include the numerical estimate after seeing the biological data. Gemini 3.1 Pro remained the lone dissenter, maintaining that the riddle’s nature makes any specific number a logical overreach.

3 of 4 models agreed