Tutorials Prompt Engineering Tutorial
Self-Consistency Prompting — Complete Guide
Self-Consistency Prompting — Complete Guide: free step-by-step lesson with examples, common mistakes, and interview tips — part of Prompt Engineering Tutorial on Toolliyo Academy.
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Prompt Engineering Tutorial · Lesson 23 of 100
Self-Consistency Prompting
Prompts → Apps
Prompts · 1 — Basics · ~6 min · Module 3: Advanced Prompt Engineering
What is this?
Self-consistency runs the same prompt several times (or with varied CoT paths) and votes on the most common final answer.
Why should you care?
PromptVerse high-stakes classifiers sample 5 completions at temperature 0.7 and majority-vote the label.
See it live — copy this example
Copy the prompt into ChatGPT, Claude, or your LLM API playground and compare outputs.
async function classify(text) {
const votes = [];
for (let i = 0; i < 5; i++) {
const out = await llm({ prompt, temperature: 0.7 });
votes.push(parseLabel(out));
}
return majority(votes);
}
What happened?
- Multiple stochastic samples diversify reasoning paths.
- Majority label beats a single unlucky sample on borderline tickets.
Practice next
- Run one ambiguous ticket 5 times at temp 0.7.
- Tabulate labels.
- Majority vote.
- Weight votes by self-reported confidence.
- Drop to 3 samples for latency cap.
Remember
Sample + vote improves robustness. Use on borderline cases only. Normalize answers before vote.
Borderline refund
Ticket could be billing or legal.
Outcome: Majority picks billing; single run picked legal.
Interview prep for this lesson
Practice these questions aloud after reading—each links to a full structured answer.
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