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Coding

Debug an error

Find and fix a bug or stack trace in existing code.

Used an AI for “Debug an error”? Add your take.

Vote head-to-head

Community ranking

from coding, reasoning, speed

Nobody has rated an AI for “Debug an error” yet, so this order comes from how people rate the abilities the task asks for (coding, reasoning, speed) — not from the task itself. Rate one you have used for “Debug an error” and the order starts to reflect it.

  1. ★
    ChatGPT
    OpenAI
    Mostly overall rating
    6.8
    —
  2. 2
    Claude
    Anthropic
    From ability ratings
    6.5
    —
  3. 2
    Gemini
    Google
    Mostly overall rating
    6.5
    —
  4. 4
    Copilot
    Microsoft
    Mostly overall rating
    5.2
    —
  5. 5
    Perplexity
    Perplexity AI
    Mostly overall rating
    5.0
    —
  6. 5
    DeepSeek
    DeepSeek
    Mostly overall rating
    5.0
    —
  7. 5
    Grok
    xAI
    Mostly overall rating
    5.0
    —
  8. 5
    Meta AI
    Meta
    Mostly overall rating
    5.0
    —
  9. 5
    Mistral
    Mistral AI
    Mostly overall rating
    5.0
    —

Start with this prompt

Written for this task. Fill in the bracketed parts.

Help me debug this.

What I expected: [expected behaviour]
What happens instead: [actual behaviour]
When it started: [after which change, if known]
What I've already tried: [so we don't go in circles]

Before suggesting a fix, tell me what you think the cause is and why. If you're
uncertain, say so and tell me what would confirm it.

---
[paste the error and the relevant code]

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