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ChatGPT vs Claude: Which Is Better?

ChatGPT (powered by GPT-4o) and Claude (powered by Claude Sonnet 4 / Opus 4) are the two leading AI assistants. Here's how they compare on the metrics that matter:


Pricing:

  • GPT-4o: $2.50/M input, $10.00/M output
  • Claude Sonnet 4: $3.00/M input, $15.00/M output
  • Claude Opus 4: $15.00/M input, $75.00/M output

    • Benchmarks:

  • Arena ELO: GPT-4o 1260 vs Claude Sonnet 4 1280 vs Claude Opus 4 1330
  • Coding ELO: GPT-4o 1265 vs Claude Sonnet 4 1305 vs Claude Opus 4 1360

    • Context Window:

  • GPT-4o: 128K
  • Claude Sonnet 4: 200K

    • When to choose ChatGPT (GPT-4o): Multimodal tasks, function calling, code execution, and when you need a fast general-purpose model with broad capabilities.


    When to choose Claude: Long-form writing, complex reasoning, large document analysis (200K context), coding tasks requiring careful instruction following, and when safety and reduced hallucinations are priorities.

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