Compare vendor costs as JSON and pick one under an SLA rule

About this exercise

Compare the four options and output one json code block and nothing else. The block is an object with "options" (an array of 4 objects with keys "name", "three_year_cost" as a plain number and "meets_sla" as true or false) and "recommendation" (the name of the lowest three-year cost among options that meet the SLA). Three-year cost = monthly price per user x users x 36 + one-time switching cost. Use the latest user count. At most 30 lines inside the block.

Common mistakes when you ask AI for this

• Using 450 users. The AI uses the planned user count. Try: Say: "Use the latest user count, 400."
• Trusting the rep's promise. The AI marks Vendor B as meeting the SLA. Try: Say: "Judge the SLA on what is in writing."
• Picking the cheapest. The AI recommends Pico Help. Try: Say: "Recommend the lowest cost among options that meet the SLA."
• Extra text. The AI explains the math outside the block. Try: Say: "One json code block and nothing else."
• Too long. The AI adds extra keys. Try: Say: "Only the keys listed; at most 30 lines."

What a strong prompt includes

• Gives the key names
• Gives the formula
• Uses latest users
• Only SLA-passing options
• One code block only

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