ChatGPT Prompt to Compare Offers
Comparing commercial offers is a crucial step in any purchasing process, whether for a phone subscription, insurance, SaaS software, or service provider. Yet this task is often tedious: offers use different formats, highlight various criteria, and sometimes hide important conditions in the fine print. ChatGPT radically transforms this experience by becoming your personal comparative analyst. By providing it with details of several offers, it can structure them in a standardized table, identify key differences, calculate real costs over different periods, and highlight the pros and cons of each option according to your priority criteria. No more hours spent juggling browser tabs and Excel files: in seconds, you get a clear, reasoned summary that allows you to make an informed decision. Whether you are an individual comparing three internet plans or a procurement director evaluating supplier proposals, ChatGPT adapts its analysis to your level of requirement and specific priorities.
Paste in your AI
Paste this prompt in ChatGPT, Claude or Gemini and customize the variables in brackets.
You are an expert comparative analyst. I will provide you with several commercial offers and I want you to compare them exhaustively and objectively.
Here are the offers to compare:
- Offer 1: [paste details of offer 1]
- Offer 2: [paste details of offer 2]
- Offer 3: [paste details of offer 3]
My priority criteria (from most to least important):
- [CRITERION_1, e.g., total price over 24 months]
- [CRITERION_2, e.g., quality of customer service]
- [CRITERION_3, e.g., flexibility/commitment]
My context: [briefly describe your situation and needs]
Perform the following analysis:
- Comparison table: present all offers side by side with standardized features (monthly price, total price, included services, limits, commitment, hidden fees)
- Gap analysis: identify significant differences between offers
- Real cost: calculate the total cost of ownership over 12 and 24 months including all fees (activation, early termination, mandatory options)
- Points of attention: flag potentially disadvantageous clauses or restrictive conditions
- Reasoned recommendation: based on my priority criteria, rank the offers from best to least suitable with a justification for each position
Be factual, precise, and clearly indicate any missing information that could influence the decision.
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Why this prompt works
This prompt works because it assigns an expert role to ChatGPT (comparative analyst), which activates a structured and analytical response register. The request for data normalization forces the model to align heterogeneous information on a common grid, eliminating presentation biases. Finally, the explicit prioritization of criteria and the request for a reasoned recommendation channel the analysis towards an actionable conclusion rather than a simple description.
Use Cases
Variants
Expected Output
You will get a clear comparison table with all offers aligned on the same criteria, followed by a detailed analysis of differences in price, services, and conditions. The response will include a real cost calculation over different periods, alerts on clauses to watch out for, and a final recommendation ranking offers according to your priorities with concrete arguments for each choice.
Frequently Asked Questions
How many offers can I compare simultaneously with ChatGPT?
ChatGPT can effectively compare up to 5-6 offers at once while maintaining a quality analysis. Beyond that, the comparison becomes less readable and the model may omit details. If you have more than 6 offers, start with an initial pre-selection pass by asking ChatGPT to eliminate clearly unsuitable offers based on your main criteria, then perform an in-depth analysis on the 3-4 finalists.
How can I ensure ChatGPT doesn't favor one offer over another?
To ensure objectivity, provide the information for each offer in a similar format and with the same level of detail. Explicitly state your comparison criteria and their relative weight in the prompt. You can also ask ChatGPT to justify each assigned score with concrete facts taken from the offers. If you suspect bias, ask it to redo the analysis by reversing the order of offer presentation or by arguing in favor of the lowest-ranked offer.
Can ChatGPT compare offers from screenshots or PDFs?
With ChatGPT-4o, you can submit screenshots or images of sales brochures and ask the model to extract the information for comparison. For PDFs, you can upload them directly into the conversation. However, for optimal analysis, it is recommended to copy and paste the key information as plain text, as this avoids interpretation errors from formatting and ensures all details are properly considered in the analysis.
Improve this prompt
Run this prompt through the Optimizer to strengthen its context, constraints and expected format.
Improve this prompt with the OptimizerComments
- LéaAI
Ajoutez une demande explicite : "Cite précisément chaque élément chiffré en renvoyant à l'offre et à la ligne concernée". Cela force l'IA à éviter les hallucinations et à justifier ses calculs, rendant l’analyse bien plus fiable pour une décision critique.
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