There are dozens of AI tools. Most businesses use one, wrong, for everything. This guide tells you which tool is genuinely best for which type of task, so you stop wasting time on the wrong tool.
For 80% of business tasks, ChatGPT or Claude will do the job. The other tools are for specific use cases where they genuinely outperform. Do not feel like you need all of them. Start with one and master it first.
The main tools, what they actually do
| Tool | Best for | Not great for | Cost |
|---|---|---|---|
| ChatGPT (OpenAI) |
Writing, drafting, research, analysis, coding, image generation. The most versatile tool. Huge plugin ecosystem. | Very long documents. Can hallucinate facts. | Free (GPT-4o). Plus: £16/mo |
| Claude (Anthropic) |
Long documents, contracts, reports. Excellent at following complex instructions. More nuanced writing style. | Image generation. Slightly slower than ChatGPT on simple tasks. | Free. Pro: £14/mo |
| Microsoft Copilot | Anything in the Microsoft 365 suite. Word, Excel, Outlook, Teams. Best if your team already lives in Office. | Standalone tasks outside Microsoft apps. | Included in M365 Business (£22/mo/user) |
| Google Gemini | Anything in Google Workspace. Docs, Sheets, Gmail, Drive. Best if your team uses Google. | Standalone use. Not as strong as ChatGPT or Claude for complex writing. | Free. Workspace AI: from £18/mo/user |
| Perplexity | Research with real-time web sources. Always cites its sources. Brilliant for market research and current information. | Creative writing. Document drafting. | Free. Pro: £15/mo |
| Notion AI | Knowledge management, internal wikis, SOP creation, if you already use Notion. | One-off tasks. Not worth it if you do not use Notion. | Add-on to Notion plans from £7/mo |
Task-based quick reference
| Task | Best tool | Why |
|---|---|---|
| Write or rewrite an email | ChatGPT or Claude | Both excellent, use whichever you have open |
| Summarise a long contract | Claude | Handles long documents better, more precise |
| Extract meeting notes from transcript | ChatGPT or Claude | Both equally good, paste and extract |
| Research a topic with current info | Perplexity | Uses real-time web with citations |
| Write a report in Word | Microsoft Copilot | Works directly inside Word |
| Analyse data in a spreadsheet | ChatGPT Advanced Data Analysis or Copilot | Can read and interpret spreadsheets directly |
| Create social media content at scale | ChatGPT | Fastest iteration, good tone calibration |
| Write an SOP from a process description | Claude | Better at structured, detailed documents |
| Brainstorm ideas | ChatGPT | Fast, wide-ranging, good for divergent thinking |
| Generate an image | ChatGPT (DALL-E) | Best integrated image generation for business use |
| Manage knowledge base or internal wiki | Notion AI | Only if you already use Notion |
| Daily email management | Microsoft Copilot or Gemini | Integrated directly into Outlook or Gmail |
The setup I recommend for most UK SMEs
ChatGPT Plus (£16/month), your primary tool for all writing, drafting, analysis and research. This alone will handle 80% of your AI use cases.
Claude Free, for long documents, contracts and anything where you need a very precise, nuanced output. Free tier is usually sufficient.
Perplexity Free, for any research where you need current information with sources.
Total cost: £16/month. Return on investment: typically 2, 4 hours saved per week from week one.
Common mistakes with AI tools
| Mistake | The fix |
|---|---|
| Using ChatGPT for everything and wondering why some outputs are poor | Match the tool to the task, especially use Claude for long complex documents |
| Paying for multiple tools and barely using any of them | Master one tool completely before adding another |
| Using the free version and wondering why results are inconsistent | ChatGPT free uses older models. Plus is worth it for regular business use |
| Not using Custom Instructions in ChatGPT | Set these up immediately, it makes every output more relevant to your business |
| Starting a new chat for every task | Continue in the same chat for related tasks, the AI remembers context |