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These are replayed responses from real requests — recorded once, shown here at no cost to you or us. Every reply shows the real cost and routing decision.

Write a Python function that validates whether a string is a valid IPv4 address.

Replay of a real request · recorded on 2026-06-15

Claude Haiku 4.5anthropic

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640ms · 120 tokens

DeepSeek V3deepseek

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810ms · 127 tokens