Claude Sonnet is the strongest choice for rewriting a resume because it excels at understanding context, restructuring content, and producing polished, professional prose that accurately reflects your experience and skills. You can paste your current resume, describe the roles you are targeting, and ask it to reframe bullet points with stronger action verbs and quantifiable impact. ChatGPT is a solid alternative with a similar skill set and a familiar interface many users already have access to. Claude Opus edges ahead on nuance and depth if your background is complex or you want multiple tailored versions. Gemini Flash is worth considering if you want a free option for quick iterative drafts.