Which AI tool for which job?

Our current picks by task. Models change fast, so we re-review this page regularly. Last reviewed: October 14, 2026.

Long documents, contracts, careful writing

Best: Claude

Also good: ChatGPT, Gemini

Handles long uploads well and tends to be careful about caveats.

Spreadsheets, math, charts, files

Best: ChatGPT

Also good: Claude, Gemini

Runs code for calculations and can hand back CSV/XLSX files.

Research with sources & current facts

Best: Perplexity

Also good: ChatGPT search, Grok, Gemini

Answers come with citations you can click and verify.

Real-time news & what people are saying on X

Best: Grok

Also good: Perplexity

Built-in access to live X posts and web search.

Video & image understanding (form checks)

Best: Gemini

Also good: ChatGPT, Grok

Strong native video input; tight Google Workspace integration.

Voice conversations & role-play

Best: ChatGPT

Also good: Grok, Gemini

Advanced voice mode for natural spoken back-and-forth.

Reusable bots (custom instructions + files)

Best: ChatGPT (GPTs) / Claude (Projects)

Also good: Gemini (Gems), Grok

Save a prompt + reference files once, reuse daily.

Building apps by vibe coding

Best: Claude

Also good: ChatGPT, Gemini, Cursor, Replit

Widely used for code generation; pair with an AI code editor.

These are editorial opinions based on each product's published features, not paid placements. Try a prompt in two tools and keep the one that works best for you.