ChatGPT, Claude, and Gemini are the three AI platforms that UK businesses are actually using in 2026. Each takes a different approach to pricing, data privacy, and capability – and choosing the wrong one wastes money on features you do not need or leaves you exposed on compliance.
This comparison cuts through the marketing to show what each platform actually costs, what it does best, and which is the right choice for your business based on team size, use case, and data sensitivity.
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- ChatGPT Teams costs £16/user/month and is the most versatile option - strongest plugin ecosystem with 1,000+ GPTs, image generation, and code interpreter built in for general business use
- Claude Pro at £16/user/month is best for long documents and careful analysis - 200K token context window handles 500+ page documents, with the most nuanced reasoning of the three platforms
- Gemini Business at £15/user/month is cheapest for Google Workspace users - native integration with Gmail, Docs, Sheets, and Drive makes it the lowest-friction option for Google-first teams
- All three offer free tiers with significant limitations on speed and models - free plans use older models, have strict daily caps, and offer no data privacy guarantees for business use
- Start with 1 paid seat and test all three over 30 days before rolling out - each excels at different tasks, so match the tool to your highest-volume use case rather than choosing on features alone
Pricing Comparison: What UK Businesses Actually Pay
All three platforms offer free tiers with limited capability and paid plans that unlock the full models. For business use, you need a paid plan – the free tiers have usage caps, slower models, and no data privacy guarantees.
| Plan | ChatGPT | Claude | Gemini |
|---|---|---|---|
| Free | GPT-4o mini, limited usage | Claude 3.5 Sonnet, limited usage | Gemini 1.5 Flash, limited usage |
| Individual paid | £16/mo (Plus) | £16/mo (Pro) | £16/mo (Advanced) |
| Team / Business | £20/user/mo (Team, annual) | £24/user/mo (Team) | £15/user/mo (Business, via Workspace) |
| Enterprise | Custom pricing | Custom pricing | Custom pricing |
| Best model access | GPT-4o, o1 | Claude 3.5 Opus | Gemini 1.5 Pro, Ultra |
All prices are approximate GBP equivalents. ChatGPT and Claude bill in USD; Gemini Business is included in Google Workspace plans billed in GBP. For a team of 10, the annual cost ranges from approximately £1,800 (Gemini Business) to £2,880 (Claude Team).
Capability Comparison: What Each Does Best
The three platforms have converged significantly in raw capability, but each has distinct strengths that matter for specific business use cases.
ChatGPT: The Swiss Army Knife
ChatGPT is the most feature-rich platform. It combines text generation with image creation (DALL-E), web browsing, code execution, file analysis, and a growing library of custom GPTs. For businesses that need one tool to handle a wide range of tasks – drafting emails, analysing spreadsheets, generating images, writing code – ChatGPT offers the broadest capability set. Its weakness is that it sometimes prioritises being helpful over being accurate, producing confident-sounding responses that contain subtle errors.
Claude: The Careful Analyst
Claude excels at tasks requiring careful reading, nuanced analysis, and working with long documents. It can process up to 200,000 tokens of context (roughly 150,000 words) in a single conversation – meaning you can upload entire contracts, reports, or codebases and ask questions about them. Claude is notably more cautious than ChatGPT, which means fewer hallucinated facts but occasionally more conservative responses. For legal teams, compliance departments, and any business that needs accurate analysis of long documents, Claude is the strongest choice.
Gemini: The Google Ecosystem Player
Gemini’s primary advantage is deep integration with Google Workspace. It can draft emails in Gmail, create presentations in Slides, analyse data in Sheets, and search your Drive – all from within the tools your team already uses. If your business runs on Google Workspace, Gemini eliminates the friction of switching between apps. Its standalone capability is slightly behind ChatGPT and Claude for complex reasoning, but the integration advantage is real and measurable in time saved.
Data Privacy and GDPR Compliance
For UK businesses, how each platform handles your data is not optional to understand – it directly affects your GDPR obligations.
| Factor | ChatGPT | Claude | Gemini |
|---|---|---|---|
| Training on your data | No (Team/Enterprise) | No (any paid plan) | No (Workspace plans) |
| Data residency | US servers | US servers (EU available for API) | EU/UK options via Workspace |
| SOC 2 Type II | Yes | Yes | Yes |
| GDPR DPA available | Yes (Team/Enterprise) | Yes | Yes (via Google Cloud) |
| SSO/SAML | Enterprise only | Enterprise only | All Workspace plans |
| Audit logs | Enterprise only | Enterprise only | All Workspace plans |
Key point for UK businesses: On free plans, all three platforms may use your conversations to improve their models. On paid business plans, none of them do. If you are inputting any client data, financial information, or personal data, a paid plan is a GDPR requirement – not a nice-to-have.
Gemini has the strongest data residency story for UK businesses because Google Workspace already stores data in European data centres. ChatGPT and Claude process data on US servers, relying on Data Privacy Framework certification and Standard Contractual Clauses for legal compliance.
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Best Use Cases by Platform
Rather than asking which is “best” overall, the right question is which is best for your specific use cases.
| Use Case | Best Platform | Why |
|---|---|---|
| Email drafting and comms | Gemini | Direct Gmail integration, context from your inbox |
| Document analysis (contracts, reports) | Claude | 200K token context, careful reasoning, fewer errors |
| Spreadsheet and data analysis | Gemini | Native Google Sheets integration |
| Content creation (blogs, social) | ChatGPT | Most versatile writing, image generation included |
| Code generation and debugging | Claude or ChatGPT | Both strong, Claude better for large codebases |
| Customer service automation | ChatGPT | Custom GPTs, API, widest integration library |
| Legal and compliance work | Claude | Most cautious, best at long document analysis |
| Presentations and visual content | Gemini or ChatGPT | Gemini for Slides, ChatGPT for standalone images |
| Research and fact-finding | ChatGPT | Web browsing, real-time information access |
| Internal knowledge base | All three | Upload company docs to any platform |
Which Platform Should UK Businesses Choose?
The decision comes down to three factors: your existing software ecosystem, your primary use cases, and your budget.
For more detail, see our Microsoft Copilot review guide.
For more detail, see our best AI chatbots for business guide.
Choose ChatGPT If
- You need the broadest range of capabilities in one tool
- Image generation is important (marketing teams, social media)
- You want to build custom AI assistants (custom GPTs) for different team functions
- Your team uses a mix of different software tools (not locked into one ecosystem)
Choose Claude If
- You work with long documents regularly (legal, consulting, finance)
- Accuracy matters more than speed (compliance, technical writing)
- You need to analyse large codebases or technical documentation
- You prefer more cautious, nuanced responses over confidently-stated approximations
Choose Gemini If
- Your business runs on Google Workspace (Gmail, Docs, Sheets, Drive)
- Budget is a primary concern (£15/user/month is the cheapest team option)
- Integration with existing tools matters more than raw AI capability
- Data residency in Europe is a strict requirement
Can You Use More Than One?
Many UK businesses use two platforms strategically. The most common combination is ChatGPT Plus for one or two power users (content creation, custom GPTs, research) alongside Gemini Business for the wider team (email, documents, everyday productivity via Workspace). This typically costs less than rolling out ChatGPT Team to everyone while covering more use cases.
For specialised needs, adding Claude Pro for legal, compliance, or technical teams provides the careful analysis capability that neither ChatGPT nor Gemini matches. A three-tool approach costs approximately £47/month per specialist user – still less than a single hour of professional consulting time.
If you need help choosing the right AI tools for your business and implementing them effectively, our AI automation consultants can assess your workflows and recommend the most cost-effective approach.
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