An AI chatbot is an assistant you talk to in plain language to get answers, write and edit text, analyze files, search the web and, on many plans, create images. The best AI chatbot for most people is ChatGPT, because it covers the widest range of everyday tasks in one app, with a useful free plan and paid plans from $8 a month.
The right pick depends on how you’ll use it: research with sources, work inside Google or Microsoft apps, or trying many AI models in one place. This guide compares five chatbots on those points, with prices from each company’s official pricing page.
How we chose these chatbots
We researched each chatbot’s official pricing pages, help centers and feature pages, plus user feedback on review sites. We compared them on:
- Free plan: what you can do without paying, and where it stops.
- Pricing: the real monthly cost, including cheaper entry plans and annual billing.
- Everyday quality: writing, answering questions, analyzing files and handling follow-ups.
- Research: web search, sources and Deep Research reports.
- Where it works: apps, browser extensions and connections to Gmail, Office and other tools.
Claude, made by Anthropic, isn’t included because it isn’t listed in our directory yet. We’ll add it if we review it.
What to look for in an AI chatbot
Free plan limits. Every free plan caps something: messages, research reports, image generation or access to the strongest model. If you use a chatbot lightly, a free plan may be all you need.
The cheap tier. Several chatbots now sell a budget plan below the usual $20 level, such as ChatGPT Go at $8 and Google AI Plus at $4.99 in the US. These raise limits but don’t unlock everything.
Sources. If you need to check facts, a chatbot that shows its sources on every answer saves time.
Where your work lives. If your email and documents are in Google or Microsoft, a chatbot built into those apps can save copying and pasting.
Privacy. Don’t paste passwords, financial details or confidential client data into any chatbot, and check your company’s rules before using one for work.
The best AI chatbots at a glance
| Chatbot | Best for | Free plan | Paid plans from | Cappy Score |
|---|---|---|---|---|
| ChatGPT (Cappy’s Pick) | One assistant for almost everything | Yes, with limits | $8/month (Go) | 4.6/5 |
| Perplexity | Research with sources | Yes, about 5 Pro searches a day | $16.67/month (Pro, annual) | 4.5/5 |
| Google Gemini | Google users and storage bundles | Yes, generous | $4.99/month (AI Plus, US) | 4.4/5 |
| Poe | Trying many AI models in one app | Yes, about 300 points a day | $4.99/month (Starter) | 4.1/5 |
| Microsoft Copilot | AI inside Word, Excel and PowerPoint | Yes, chat only | $8.33/month (Microsoft 365 Personal, annual) | 4.0/5 |
1. ChatGPT: best AI chatbot overall
ChatGPT, from OpenAI, is the most complete all-round chatbot. It writes and edits text, analyzes files and spreadsheets, searches the web, generates images, holds voice conversations and remembers your preferences. Paid plans add Deep Research for long sourced reports, agent mode for multi-step tasks on websites, custom GPTs and Codex for coding.
Its plan ladder now has a budget step. Go at $8 a month raises the free limits, Plus at $20 unlocks the full toolset, and three Pro tiers at $100, $200 and $500 serve heavy users. Business costs $20 per user per month on annual billing.
Key features: the widest toolset of any chatbot, agent mode, custom GPTs, strong file and data analysis.
Best for: anyone who wants one assistant for writing, research, files and everyday tasks.
Where it falls short: answers don’t always show sources unless it searches the web, and Free and Go include ads in some markets.
Pricing: Free plan; Go $8/month, Plus $20/month, Pro from $100/month, Business $20/user/month (annual).
2. Perplexity: best for research with sources
Perplexity works like a search engine that writes answers. It searches the web for every question, then writes a reply with numbered links to the pages it used, so you can check each claim. Pro Search runs deeper, multi-step searches, and Deep Research builds long reports from many sources.
Paid plans let you choose which AI model answers, upload files and generate images. Perplexity runs on the web, in mobile apps and as a Chrome extension.
Key features: numbered sources on every answer, Pro Search, Deep Research, model choice on Pro.
Best for: students, researchers and professionals who need to check where information comes from.
Where it falls short: it’s weaker than ChatGPT for long writing, creative work and complex tasks.
Pricing: Free plan; Pro $20/month or $200/year (about $16.67/month), Max $200/month.
3. Google Gemini: best for Google users
Gemini is Google’s chatbot, and its biggest advantage is how well it fits with Google’s own apps. The free version already includes chat, limited Deep Research, Canvas for writing and coding, image generation and Gemini Live for voice conversations. It can also pull information from connected Google apps when you allow it.
Google AI Pro, at $19.99 a month, puts Gemini inside Gmail and Google Docs, raises the limits, adds video generation and includes 5 TB of Google storage. Google AI Plus is cheaper at $4.99 a month in the US, but from 13 November 2026, Plus no longer lets you pick Google’s Pro models, so it suits lighter use.
Key features: works with Gmail, Docs and Drive, generous free plan, storage bundled with paid plans.
Best for: people whose email, files and calendar are already in Google.
Where it falls short: its integrations are less useful outside Google’s world, and plan features change often, so check what each tier includes before you buy.
Pricing: Free plan; AI Plus $4.99/month (US), AI Pro $19.99/month, AI Ultra $99.99 or $199.99/month.
4. Poe: best for trying many AI models
Poe, from Quora, gives you many AI models from different companies in one app, including models from OpenAI, Google, Anthropic and others. You can ask the same question to several models, compare the answers, and build simple custom bots for tasks you repeat.
Usage runs on compute points. Each message spends points, and stronger models cost more. Poe shows the cost before you send, so you can use cheaper models for simple tasks.
Key features: many models in one subscription, side-by-side answers, custom bots.
Best for: people who like comparing AI models, or want access to several without paying for each one.
Where it falls short: the points system makes costs hard to predict, and the free allowance of about 300 points a day is small after cuts in 2026.
Pricing: Free plan; Starter $4.99/month (about 10,000 points a day), Premium $19.99/month or $199.99/year.
5. Microsoft Copilot: best for Microsoft 365 users
Copilot is Microsoft’s AI assistant. The free app on the web, Windows and mobile handles chat, web answers, images and voice. Its main strength appears on paid Microsoft 365 plans, which put Copilot inside Word, Excel, PowerPoint and Outlook, so you can draft a document, summarize an email thread or analyze a spreadsheet where you already work.
Microsoft stopped selling the standalone Copilot Pro plan to new customers in October 2025. Copilot now comes with Microsoft 365 Personal, Family and Premium plans, which also include the Office apps and OneDrive storage.
Key features: Copilot inside Word, Excel and PowerPoint, bundled with Office apps and storage.
Best for: people and families who already pay for Microsoft 365.
Where it falls short: the free Copilot can’t use your emails, files or meetings, and the standalone chatbot is less capable than ChatGPT.
Pricing: Free plan; Microsoft 365 Personal $9.99/month or $99.99/year (about $8.33/month), Family $12.99/month, Premium $19.99/month.
Feature comparison
| Chatbot | Sources on answers | Deep Research | Image generation | Works inside |
|---|---|---|---|---|
| ChatGPT | When it searches the web | Yes, limited on Free and Go | Yes | Its own apps, plus connectors |
| Perplexity | Always | Yes, daily allowance on Pro | Pro plans | Its own apps, Chrome extension |
| Google Gemini | When it searches the web | Yes, limited on Free | Yes | Gmail, Docs and Drive on AI Pro |
| Poe | Depends on the model | Depends on the model | Yes, on supported models | Its own apps |
| Microsoft Copilot | Yes, on web answers | Yes, with limits | Yes | Word, Excel, PowerPoint on paid Microsoft 365 |
What each chatbot costs over a year
Here’s what one person pays for a year on each chatbot’s two most popular plans.
| Chatbot | Budget plan | Standard plan |
|---|---|---|
| ChatGPT | Go: $96 | Plus: $240 |
| Perplexity | None | Pro: $200 (annual) |
| Google Gemini | AI Plus: about $60 (US) | AI Pro: about $240 |
| Poe | Starter: about $60 | Premium: $199.99 (annual) |
| Microsoft Copilot | Microsoft 365 Personal: $99.99 | Microsoft 365 Premium: $199.99 |
Gemini and Copilot plans also include cloud storage, and Copilot’s include the Office apps, so they can replace other subscriptions you already pay for.
The best AI chatbot for your type of work
Students. Perplexity is the best research tool, because every answer links to sources you can check and cite. ChatGPT is better for explaining concepts step by step and giving feedback on your writing. The free plans of both cover most student needs.
Writers and marketers. ChatGPT is the strongest for drafting, rewriting and editing long text. Poe is useful if you want to compare how different models write the same piece.
Office workers on Google Workspace or Gmail. Gemini saves the most time, because it works inside the apps where your email and documents already are.
Office workers on Microsoft 365. Copilot puts AI inside Word, Excel and PowerPoint, which is hard to match if your work lives there.
Researchers, analysts and journalists. Start with Perplexity for fast, sourced answers, and use ChatGPT’s Deep Research for longer reports.
Developers. ChatGPT, with Codex on paid plans, covers the most coding work. For dedicated coding tools, see the AI code assistants in our directory.
Using two chatbots together
Many people use two free plans side by side instead of paying for one. A common setup is Perplexity for research and ChatGPT for writing: find and check the facts in Perplexity, then paste your notes into ChatGPT to draft the email, report or post.
If you hit limits on one free plan every day, that’s the one to upgrade. Paying for two $20 plans is rarely necessary.
Which AI chatbot should you choose?
- One assistant for almost everything → ChatGPT
- Research where you need sources → Perplexity
- Your email and files are in Google → Google Gemini
- You want to try many AI models → Poe
- You already pay for Microsoft 365 → Microsoft Copilot
- The cheapest paid plan → Google AI Plus or Poe Starter, both $4.99 a month
For head-to-head comparisons, read ChatGPT vs Gemini, Perplexity vs ChatGPT and Copilot vs ChatGPT, or our full Poe review. Browse all AI chatbots in our directory.
Frequently asked questions
What is the best AI chatbot in 2026?
For most people, ChatGPT, because it handles writing, research, files, images and tasks in one app. Perplexity is better if most of your use is research with sources, and Gemini is better if you work in Google’s apps.
What is the best free AI chatbot?
ChatGPT and Gemini both have strong free plans for chat, files and images. Perplexity’s free plan is the best for quick answers with sources. Many people use two of them side by side.
What is the cheapest AI chatbot subscription?
Google AI Plus and Poe Starter both cost $4.99 a month in the US. ChatGPT Go costs $8 a month. Each raises limits over the free plan but doesn’t include everything in the $20 plans.
Which AI chatbot is most accurate?
None is always right. Perplexity is the easiest to check, because every answer links to its sources. For prices, dates, laws and anything you’ll publish, confirm with the original source whichever chatbot you use.
Is ChatGPT Plus worth it?
If you use ChatGPT most days and hit the free limits, yes. Plus costs $20 a month and adds the full toolset, including Deep Research and agent mode. Try Go at $8 first if you mainly need more messages.
Is Gemini better than ChatGPT?
Gemini is better if your email and documents are in Google, and its paid plans include storage. ChatGPT is the stronger all-round assistant. Our ChatGPT vs Gemini comparison covers the details.
Can I use AI chatbots for work?
Yes, but check your company’s rules first. Avoid pasting confidential information into personal plans. Business plans from ChatGPT, Google and Microsoft add admin and data controls for teams.
Do AI chatbots keep my conversations?
Most save your chat history to your account by default so you can return to it. Each one has settings to turn history off or delete chats, and business plans usually add stricter data controls. Check the privacy settings of the one you use.