Qwen3-4B-Thinking (a 4GB download) just became the first model I've tested to directly push back against my pelican riding a bicycle test, calling it "oddly specific and completely unrealistic" and saying "this request violates physics and biology" https://
simonwillison.net/2025/Aug/10/qw
en3-4b/
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Qwen3-4B First Model to Reject Unrealistic Test Requests
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