ChatGPT 5 vs Grok 4: Developers Put AI Python Coding Skills to the Test

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A developer benchmark published on DEV Community in 2025 directly compares OpenAI's ChatGPT 5 and xAI's Grok 4 across ten real-world Python coding challenges. The test cases range from basic arithmetic scripts and CSV data processing to web scraping, multithreading, and SQLite database interaction, with identical prompts submitted to both models. In an initial challenge to sum even numbers, ChatGPT 5 responded almost instantly with a concise, modular script including error handling, while Grok 4 took slightly longer and produced more verbose, procedural code without an entry point. The comparison evaluates each model on code correctness, readability, execution speed, and handling of complex prompts. The exercise reflects a broader shift among developers who increasingly rely on AI tools to accelerate workflows, with ChatGPT holding an established lead but Grok gaining recognition for output clarity.

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