Claude Sonnet is the strongest choice for translation that preserves tone and meaning, as it excels at nuanced language tasks and can follow detailed instructions about register, formality, and stylistic intent. You can prompt it to explain its translation choices, request multiple variants, or ask it to match a specific voice, making it highly controllable for sensitive content. ChatGPT is a solid alternative with broad multilingual coverage and a similar instruction-following ability. Claude Opus edges ahead for especially complex or literary content where deeper reasoning about subtle meaning matters most. Gemini Flash is worth considering if cost is a priority, since it handles everyday translation tasks well at no charge.