Free Prompt Quality Checker - Test ChatGPT, Claude & Gemini Prompts
Test and score your AI prompts instantly. Our free prompt evaluator checks ChatGPT prompts, Claude prompts, and Gemini prompts using prompt engineering best practices. Get prompt quality scores, detailed feedback, and actionable tips to improve your AI prompts for better results.
Analyze any AI prompt across 8 key criteria: clarity, role definition, context, task specification, output format, examples, constraints, and structure. Works with GPT-4, GPT-3.5, Claude, Gemini, and all AI models.
Test Your ChatGPT, Claude & Gemini Prompts - Free Prompt Quality Checker
Paste your AI prompt below to get instant prompt evaluation and scoring. Our prompt quality checker analyzes your ChatGPT prompts, Claude prompts, and Gemini prompts based on prompt engineering best practices. We test clarity, structure, context, role definition, output format, examples, constraints, and other key factors.
Works with all AI prompts: ChatGPT (GPT-4, GPT-3.5), Claude AI, Gemini, and other large language models.
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What is Prompt Evaluation?
Prompt evaluation is the process of analyzing and grading AI prompts based on prompt engineering best practices. A good prompt evaluator checks multiple factors including clarity, specificity, role definition, context provision, task definition, output format specification, use of examples (few-shot learning), constraints and rules, and overall structure.
Our free AI prompt evaluator helps you understand the quality of your prompts for ChatGPT, Claude, Gemini, and other AI models. By evaluating your prompts, you can identify areas for improvement and learn how to create more effective prompts that produce better AI responses.
The evaluation is based on proven prompt engineering methods and techniques used by AI professionals to optimize interactions with large language models. Whether you're creating prompts for content generation, code writing, data analysis, or any other AI task, our evaluator provides valuable insights.
How Our Prompt Evaluator Works
Comprehensive Evaluation Criteria
Our prompt quality checker evaluates your prompts across 8 essential criteria:
- •Clarity & Specificity (20 points): Checks for clear, specific language and absence of vague terms. Evaluates whether your prompt uses concrete details and clear instructions.
- •Role Definition (10 points): Analyzes if you've defined a specific role or persona for the AI (e.g., "You are an expert writer" or "Act as a data analyst").
- •Context (15 points): Evaluates whether sufficient background information and context are provided to help the AI understand the situation.
- •Task Definition (20 points): Checks if the task is clearly defined with specific action words and requirements.
- •Output Format (10 points): Analyzes whether the desired output format is specified (JSON, markdown, table, list, etc.).
- •Examples (10 points): Checks for the use of examples to guide the AI response (few-shot learning technique).
- •Constraints & Rules (10 points): Evaluates whether constraints, rules, or limitations are clearly defined.
- •Structure (5 points): Checks for proper organization and structure with clear sections.
Benefits of Using a Prompt Evaluator
Using our free prompt evaluator provides several key benefits for improving your AI interactions:
- •Instant Feedback: Get immediate evaluation of your prompt quality with detailed scoring and feedback.
- •Learn Prompt Engineering: Understand prompt engineering best practices through detailed criterion-by-criterion feedback.
- •Improve AI Responses: Better prompts lead to better AI outputs. Our evaluator helps you identify weaknesses and improve prompt effectiveness.
- •Works with All AI Models: The evaluation criteria apply to prompts for ChatGPT, Claude, Gemini, GPT-4, and all major AI models.
- •Free and Unlimited: Evaluate as many prompts as you need without any cost or registration.
Prompt Engineering Best Practices
Our prompt evaluator is based on established prompt engineering methods and techniques. Here are the key principles we evaluate:
1. Define a Clear Role
Start your prompt by defining a specific role for the AI (e.g., "You are an expert data analyst" or "Act as a professional writer"). This sets context and helps the AI understand its expertise level.
2. Provide Sufficient Context
Include background information, situation details, and relevant context. The more context you provide, the better the AI can understand and respond appropriately.
3. Be Specific and Clear
Use concrete, specific language instead of vague terms. Instead of "write something good," say "write a 500-word blog post about renewable energy with three main sections."
4. Specify Output Format
Clearly define how you want the output structured (JSON, markdown, bullet points, table, paragraphs, etc.). This ensures consistent, usable results.
5. Use Examples (Few-Shot Learning)
Include examples to show the AI exactly what kind of output you expect. This is especially effective for complex or specific formatting requirements.
6. Set Clear Constraints
Define rules, limitations, and requirements clearly. Specify word counts, tone, style, what to avoid, and any other constraints.
7. Organize Your Prompt
Structure your prompt with clear sections (Role, Context, Task, Format, etc.) for better readability and effectiveness.
Frequently Asked Questions
What is a prompt evaluator?
A prompt evaluator is a tool that analyzes and grades AI prompts based on prompt engineering best practices. It evaluates factors like clarity, structure, context, role definition, output format, examples, and constraints to provide a quality score and actionable feedback for improvement.
How does the prompt evaluation work?
Our prompt evaluator analyzes your prompt across 8 key criteria: clarity and specificity (20 points), role definition (10 points), context (15 points), task definition (20 points), output format (10 points), examples (10 points), constraints and rules (10 points), and structure (5 points). It provides a total score out of 100 and a letter grade (A-F) with detailed feedback on each criterion.
What makes a good AI prompt?
A good AI prompt includes: a clear role definition (e.g., "You are an expert writer"), sufficient context and background information, a specific and well-defined task, desired output format specification, examples when helpful (few-shot learning), clear constraints and rules, and proper structure and organization. Our evaluator checks all these elements.
Is the prompt evaluator free?
Yes, our AI prompt evaluator is completely free to use. You can evaluate unlimited prompts for ChatGPT, Claude, Gemini, and other AI models without any cost or registration required.
Which AI models does this work with?
Our prompt evaluator works with prompts for all major AI models including ChatGPT, Claude, Gemini, GPT-4, GPT-3.5, and other AI assistants. The evaluation is based on universal prompt engineering best practices that apply to all AI models.
How can I improve my prompt score?
To improve your prompt score: define a specific role for the AI, provide clear context and background, be specific about the task (avoid vague terms), specify the desired output format, include examples when helpful, add constraints and rules, and organize your prompt with clear sections. Our evaluator provides detailed feedback on each area for improvement.