A general chatbot will happily rate your writing, but the rating moves between sessions, models, and phrasings of the request, so two ratings cannot be compared.
Truverai fixes the engine version, prompt, model, temperature, and aggregation, and publishes them. That is what makes one score comparable to another.
Truverai scores are reproducible within a published lock: engine v4.7, prompt hash 1a6c25c7e25ddbf8, model google/gemini-3-flash-preview at temperature 0, and a median of three runs. That is reproducibility within a fixed configuration, not a claim that a different language model would return the same number.
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