| Category | Chat & assistants · Chatbots & LLMs | Chat & assistants · Chatbots & LLMs |
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| In one sentence | Highly rated for writing, coding and working with long documents, known for being careful and for usage limits you will notice. | The assistant that made generative AI mainstream and now also works for you for hours on end. |
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| Free plan | ✓ Yes | ✓ Yes |
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| Price | Free / Pro $20/mo / Max $100/mo | Free / Go €8/mo / Plus €23/mo |
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| Plans and pricing | - Free €0
- Pro $20/month ($17/month billed annually: $200)
- Max $100/month (€90 in Europe)
- Ultra $200/month (€180 in Europe)
- Team / Enterprise Contact sales
| - Free €0
- Go €8/month
- Plus €23/month ($20)
- Pro 100 / 200 / 500 €103 / €229 / €510 a month ($100 / $200 / $500)
- Business $25/user/month ($20 billed annually)
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| AIAO score | 98/100 | 99/100 best |
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| Languages | No verified data | No verified data |
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| Where to use it | Web, iOS, Android, Windows and macOS; Claude Code and an API for developers. | Web, iOS, Android and desktop app for Windows and macOS. |
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| Pros | - Writes in a natural style and follows tone and format instructions well.
- Very strong at coding with Claude Code, which completes whole tasks on a project.
- Handles long documents well (1M-token context on the 5.5 models).
- Artifacts turn a request into a web page, chart or tool you can share.
| - The Swiss Army knife of AI: writes, summarises, translates, codes, analyses files, searches the web, talks by voice and creates images in one window.
- Interactive answers with GPT-6: charts, comparisons, maps or calculators inside the chat.
- ChatGPT Work and Codex work for hours on complex tasks and hand back the finished result.
- Generous free plan (GPT-6 Luna, no fixed cap on text chats) and a huge ecosystem of GPTs and connectors.
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| Cons | - Allowances run out in intense sessions, with five-hour and weekly windows.
- No image or video generator of its own.
- Training on by default for personal accounts (data kept up to 5 years unless you opt out).
| - Ads on the Free and Go plans in Spain; removing them means upgrading to Plus.
- Privacy could be better: training on by default and a €15 million fine in Italy (2024).
- Confusing line-up: model names that change every few months and three Pro plans, the top one above €500 a month.
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| Use cases | - Writing and editing; coding and automation; analysing long documents; building mini-apps without coding.
- Before a long job, create a Project with your documents and standing instructions (tone, format, audience): you won’t have to repeat them in every chat and you’ll use less of your allowance.
| - Anyone who wants a single assistant for everything (studying, writing, getting organised); professionals and freelancers who want to delegate reports, slides or spreadsheets; developers (with Codex).
- For long jobs, such as a report with its spreadsheet and slide deck, use ChatGPT Work in the desktop app (also on the free plan, with limits). For personal matters, open a temporary chat: it is not used for training and is deleted after 30 days.
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| Privacy and data | On personal accounts (Free, Pro, Max and Ultra) training on your conversations is on: if you leave it, Anthropic may keep them for up to 5 years; if you turn it off in Settings > Privacy, they are deleted in about 30 days. Business plans and the API are not used for training. | Turn off training in Settings > Data controls > “Improve the model for everyone”. Temporary chats are deleted after 30 days. On ad-supported plans, ads may use the conversation context; OpenAI says it does not sell your data. |
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| Profile | View details → | View details → |
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