3 AI Models, 1 Prompt: Who Writes Better Code? (Claude Coding Challenge)

Which Claude model writes the best code? In this episode of the LLM Coding Challenge, we give Opus, Sonnet, and Haiku the exact same prompt — write a Python palindrome checker — and compare the results side by side. Same prompt. One shot. No follow-ups. We score each model across 8 criteria: - Function correctness - Case insensitivity - Handles spaces - Strips punctuation - Edge cases - Test cases included - Clean code - Documentation The result? All three models scored 8/8 — a perfect tie. But the real difference is in style: Opus keeps it concise, Sonnet adds formatted summaries, and Haiku goes verbose with complexity analysis. All code was generated using Claude Code CLI with the -p (one-shot) flag. Next episode: a harder challenge. Subscribe to see if the models can still keep up. --- Chapters: 0:00 Intro 0:15 The Prompt 0:30 Opus 1:13 Sonnet 1:51 Haiku 2:59 Scorecard 3:34 Outro --- #Claude #AI #CodingChallenge #LLM #Opus #Sonnet #Haiku #Python #Programming #AICode Tags: Claude, AI, coding challenge, LLM, Opus, Sonnet, Haiku, Python, palindrome, programming, AI code, Claude Code, Anthropic, code comparison, AI models