Side-by-side evaluation of customer-support chatbots
Chatbot Compare runs 2 to 4 chatbots through the same test suite and shows which one is best, and why. Any chatbot with an HTTP API can be plugged in, and every answer is checked for accuracy, safety, hallucinations, bias and speed.
Choosing between chatbots, or between models for one chatbot, usually comes down to a few hand-picked conversations. That hides hallucinations, unsafe answers and unfair treatment of different customers.
Price lookups, order tracking, follow-ups, Hindi, prompt injection, guardrails, out-of-scope, hallucination and bias, filled in with each bot's own store data.
Exact fact checks, an AI judge grading correctness, helpfulness and tone, and response-time measurement.
Flags any invented price, spec or policy, and compares answers given to customers of different gender, age, region, religion and more.
Bots are ranked only on cases all of them were scored on, with bootstrap confidence ranges and a second judge from another model family.
Checks which agent or tool handled a request and what data was retrieved, separating retrieval failures from generation failures.
People chat with two anonymous bots side by side and vote; ratings use the Bradley-Terry model on the Elo scale.
Register the bots to compare by URL; the tool works out how to talk to each one.
Pick a test suite: store-specific cases with each bot's facts, or 42 generic cases that work on any bot.
Run the suite; every reply is fact-checked, graded by an AI judge and timed.
Read the scorecard: headline scores, per-skill charts, head-to-head results and the failed cases with evidence.
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