Code & DevBeginner

Bug Explainer

Turn cryptic errors into plain English

Paste an error message, stack trace, or failing test output and get a clear, actionable explanation of what went wrong, why it happened, and exactly how to fix it — with code examples tailored to your stack.

RECOMMENDEDOpenAI

GPT-4o Mini

INPUT / 1M$0.15
OUTPUT / 1M$0.60
CONTEXT128K
SPEED97/100
CODING SCORE
74
REASONING SCORE
78
ESTIMATED MONTHLY COST

for 200K tokens/month · 80% input / 20% output

$0.05

WHY THIS MODEL

GPT-4o Mini delivers fast, accurate code completions and error explanations at a fraction of the cost of frontier models. For developer tasks that prioritize response speed and volume over deep architectural reasoning, it hits the sweet spot of quality and affordability.

ALTERNATIVE MODELS

IMPLEMENTATION TIPS

  1. 1

    Always include the surrounding 20–30 lines of code with the stack trace — the model pinpoints the root cause far more accurately when it can see the actual code rather than just the error message.

  2. 2

    Ask for the explanation in three parts: 'What happened', 'Why it happened', 'How to fix it' — this structure ensures junior developers get the full mental model, not just a patch.

  3. 3

    Log which errors are pasted most frequently to your bug explainer — these are your highest-leverage targets for test coverage or refactoring, revealing systemic fragility in your codebase.

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