Claude

We've relied on Claude for tasks that demand more than a quick answer — reviewing contracts, summarizing research papers over 50 pages long, and analyzing large CSV datasets directly inside the chat. The clearest practical difference from ChatGPT is the much longer context window (up to 200K tokens in recent versions), meaning you can paste an entire document or several code files at once without the model "forgetting" earlier sections. That's a real, working difference — not just a marketing number.

In review and critical-analysis tasks, we found Claude less prone to "confident hallucination" (stating something wrong with high confidence) compared to competitors, especially in legal and financial contexts where accuracy matters more than speed. Its tone when declining sensitive requests is also more consistent and less erratic than ChatGPT's. Claude Opus is built for heavier analytical work and is the slowest and most expensive tier, while Sonnet balances speed and quality well for most day-to-day use.

The most noticeable weakness in practice is the absence of some extras ChatGPT users are used to — there's no plugin/GPT store of comparable breadth, and image generation is entirely absent (Claude is text-only for now). The mobile and voice experience is also less mature than its competitors'. For anyone who needs high-accuracy text and code analysis without image or voice generation, Claude is a strong pick; for anyone who needs a single tool covering text, image, voice, and plugins, ChatGPT or Gemini currently cover more ground from one place.