GPT Migrator
Troubleshooting, testing and FAQs

Migrated GPT sounds different: how to match the original tone

Last checked October 18, 2026
Short answerDescribe the voice in concrete rules, give two or three example answers from the original, list phrases to avoid, and compare side by side until it reads right.

Make the voice concrete

Use examples

Paste two or three real answers you loved from the original GPT under "Examples of good answers". Examples usually move tone more than adjectives do.

Compare

Run the same five questions on both versions and score tone using the scorecard. Adjust one rule at a time. See also if rules are ignored and why answers differ.

Check your GPT before you move it

Paste your instructions, file names and Actions schema into the free checker. It runs in your browser and builds a portable bundle. Nothing is uploaded.

Open the free checker

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