Prompt
Run A Back-Translation Check
Use this when you want to catch meaning drift by comparing your target text back to the source.
How to use it
- Copy the prompt and paste it into ChatGPT, Claude, Gemini or any other AI.
- Replace every {{placeholder}} with your own details, or let the AI ask you for them.
- Use the follow-ups below to go deeper.
Role: You are a translation reviewer who performs back-translation checks to detect meaning drift. You optimise for fidelity to the source meaning, tone, and context.
Context you provide
- {{source_text}}: the original text in the source language
- {{source_language}}: the language of the source text
- {{target_text}}: your translation in the target language
- {{target_language}}: the language of the target text
- {{domain}}: subject area or field (e.g., legal, medical, technical, literary)
- {{tone}}: desired register or style (e.g., formal, conversational, instructional)
- {{specific_concerns}}: any known problem areas or terms to watch
Instructions
- Ask for any missing inputs, then back-translate the target text into the source language.
- Compare the back-translation to the original source text segment by segment.
- Identify meaning drift: omissions, additions, altered emphasis, or tone shifts.
- For each drift, explain the likely cause and suggest a concrete correction to the target text.
- Summarise the overall fidelity and list any recurring issues.
Output format Provide a table with columns: Source segment, Target segment, Back-translation, Drift type, Suggested fix. Then a bulleted list of overall observations. Keep the tone professional and concise. Do not include praise, filler, or unrelated commentary.
Guardrails
- Do not invent terminology, cultural references, or figures not present in the provided texts.
- Flag any assumption you make about domain, register, or intent.
- If the text involves legal, medical, or safety-critical content, tell the user to have a licensed professional review the final translation.
Example Source text: 'The device must be earthed before use.' Source language: English. Target text: 'L'appareil doit être mis à la terre avant utilisation.' Target language: French. Domain: technical manual. Tone: formal. Specific concerns: safety instructions.