Free AI Assistants: 8 Tested and Ranked (2026) | Lindy

Free AI Assistants: 8 Tested and Ranked (2026)

Written by

Marvin Aziz

Personally Tested

Growth Engineer

Marvin tested eight free AI assistants, including ChatGPT, Gemini, and Perplexity, weighing free access, ease of use, output quality, and everyday task handling.

Table of contents

8 Best Free AI Assistants: Quick comparison

For this list, I looked for AI assistants with free trials/plans that work for a wide range of tasks, like writing, research, managing your inbox, calendar assistants, and day-to-day tasks. Here’s how the top 8 tools compare side-by-side:

Tool Best for Starting price (billed monthly) Key strength Limitations
ChatGPT Writing, brainstorming, and general tasks $8/month Strong all-purpose assistant for everyday questions, drafts, and quick analysis It often stops at answers instead of taking action
Gemini Google Workspace users $7.99/month Works well across Gmail, Docs, Drive, and Android It loses a lot of value outside Google’s ecosystem
Claude Long-form writing and deep reasoning $20/month Clear writing, strong structure, and great document handling Fewer direct task and app actions than some alternatives
Perplexity Research with sources $20/month Fast answers with citations and better source visibility Less useful for task execution and daily operations
Microsoft Copilot Microsoft 365 users $9.99/month Fits naturally into Word, Excel, PowerPoint, Outlook, and Teams Best features matter most inside Microsoft’s ecosystem
Shortwave Gmail inbox triage $18/user/month Thread summaries and fast inbox cleanup Narrower use case than a full AI assistant
Notion Notes, docs, and internal knowledge $12/user/month Helpful inside a Notion-heavy workflow It works best inside Notion, not across your whole stack
Lindy Handling tasks across your tools $49.99/month You can text Lindy to draft emails, schedule meetings, and update connected apps You’ll get more value after you connect your tools

How I researched and tested these free AI assistants

I tested these AI assistants based on how people use them for everyday tasks. I looked at how much you can do for free, how easy-to-use each tool is, and whether it helps you get work done or only gives you answers.

Here’s what I paid the most attention to:

These criteria made it easy for me to spot the differences. Some assistants stood out for writing or research, while others did a better job helping you manage your inbox, meetings, and everyday admin work.

1. ChatGPT: Best FREE AI for writing, brainstorming, and general tasks

What it does: ChatGPT is a general-purpose AI assistant that helps with writing, summaries, brainstorming, research, and quick problem-solving.

Best for: Anyone who wants a flexible, free AI assistant for everyday questions, content drafts, and light analysis.

ChatGPT still sets the baseline for general AI assistants. You open it, type what you need, and get a useful response fast. For tasks like writing an email, summarizing a document, cleaning up notes, or thinking through an idea, ChatGPT gives you a solid first draft without much setup. Many popular browser-based tools run directly as AI websites that you can access without installing software.

It also handles a wider mix of tasks than many specialized assistants. However, it stops at the answer and cannot take action. ChatGPT doesn’t feel like a true work assistant unless you pair it with other tools or build a more connected setup around it.

Key features

Pros

Cons

What users say

ChatGPT is useful across many workflows as it’s versatile. It also offers a free tier that covers a lot for casual users. That lines up with how most people use it, for quick help, fast drafts, and everyday questions, and not deep operational work.

Pricing

Bottom line

Choose ChatGPT if you want the best free AI assistant for general use. It works well for writing, brainstorming, summaries, and quick problem-solving. You may need to look elsewhere if you need a tool to take action across your inbox, calendar, or CRM.

2. Gemini: Best free AI assistant for Google Workspace users

What it does: Gemini is Google’s AI assistant for writing, summaries, research, and quick task help across Gmail, Docs, Drive, and other Google tools.

Best for: People who already spend most of their day in Google Workspace or on Android devices.

Gemini makes the most sense when your work already lives inside Google. You can use it to summarize emails, pull details from documents, draft content in Docs, and work across Drive without jumping between too many tools.

That tight Google fit also creates its biggest limitation. Gemini loses a lot of value when you do not rely on Google tools every day. If you use Outlook, Dropbox, or a more mixed stack, Gemini starts to feel less special.

Its standalone chat is still useful, but its advantage comes from context inside Google Workspace, not from beating every other assistant on raw output.

Key features

Pros

Cons

What users say

Gemini earns high marks when people use Google Workspace heavily. If Google already runs a big part of your workday, Gemini feels convenient and fast. If not, the advantage drops off quickly.

Pricing

Bottom line

Go with Gemini if you want a free AI assistant that fits neatly into Google Workspace. It works best for people who live in Gmail, Docs, Drive, and Android. If your work involves many non-Google tools, you will likely get more value from another assistant in this list.

3. Claude: Best Free AI Assistant for long-form writing and deep reasoning

What it does: Claude is an AI assistant that helps with writing, analysis, document review, and thoughtful problem-solving across longer tasks.

Best for: People who care most about clear writing, strong structure, and working through large documents or complex ideas.

Claude stands out when the task needs more depth than speed. It tested it and it handled long documents well, kept its structure steady, and wrote in a cleaner, calmer way than most assistants.

It also feels less cluttered than some competitors. When I think about who should use Claude, I think of someone reviewing a long PDF, cleaning up a rough article draft, or working through a messy idea that needs shape.

The downside is that Claude stays stronger in thinking and writing than in taking action. It does not match a more task-oriented assistant when you want help across your inbox, meetings, or business tools.

Key features

Pros

Cons

What users say

Claude gets the most praise from people who care about writing quality and depth. Users find it useful for careful drafting and long-context work, with strong reasoning and a less robotic writing style.

Pricing

Bottom line

Choose Claude if you want a free AI assistant for deep writing, careful summaries, and long-document analysis. It does not try to be your inbox manager or operations assistant. It wins when the work needs clarity, structure, and stronger reasoning.

4. Perplexity: Best FREE AI Assistant for research tasks with sources

What it does: Perplexity is an AI assistant built for research, fact-finding, and source-backed answers.

Best for: People who want fast answers with citations instead of a standard chat response with no clear source trail.

I tested Perplexity to research stats for an article I was writing about bottom-of-the-funnel marketing. It gave me a polished answer and supported it with sources I could check. That makes it ideal for quick research, topic exploration, and source-backed summaries.

It also works well when you need to move fast. You can ask a question, scan the answer, open the sources, and decide whether you want to keep going. That flow feels more useful than a traditional chatbot when you need current information or want to verify a claim.

The limitation is that Perplexity helps you find and organize information, but it does not do much beyond that. It feels more like a research assistant than a work assistant.

Key features

Pros

Cons

What users say

Perplexity is one of the best tools for fast factual lookups and checkable answers. However, users also mention that it lags behind the newer AI models from ChatGPT and Claude. It is a smart pick if your main goal is to research faster with more confidence.

Pricing

Bottom line

Perplexity works well if you want an AI assistant for research with visible sources. It’s ideal when you need fast answers you can verify, not when you need an assistant to manage your day or take action across your tools.

5. Microsoft Copilot: Best for Microsoft 365 users

What it does: Microsoft Copilot is an AI assistant built into Microsoft tools like Word, Excel, PowerPoint, Outlook, and Teams.

Best for: People and teams who already do most of their work inside Microsoft 365.

Microsoft Copilot works best when you already live in Microsoft’s ecosystem. You can draft in Word, analyze data in Excel, build slides in PowerPoint, catch up on email in Outlook, and summarize meetings in Teams without bouncing to a separate tool.

That same strength also narrows the audience. Copilot makes less sense if your work happens mostly in Google Workspace, Notion, or a more mixed stack. Copilot is not the most flexible free AI assistant in this list, but it can feel like the most convenient one when your files, meetings, and communication already sit inside Microsoft tools.

Key features

Pros

Cons

What users say

Copilot earns its place because it reduces friction for Microsoft users. It’s the most natural assistant for Microsoft 365 work, but the value drops fast if you do not depend on Microsoft apps.

Pricing

Bottom line

Microsoft Copilot works if you want a free AI assistant that works inside Microsoft 365. It shines when your documents, email, meetings, and spreadsheets already live there. If not, a more flexible assistant in this list will likely serve you better.

6. Shortwave: Best free AI assistant for Gmail inbox triage

What it does: Shortwave is an AI email assistant that helps you summarize threads, clean up your inbox, and find important details inside Gmail faster.

Best for: Gmail users who want help staying on top of email without switching to a full help desk or a general chatbot.

Shortwave solves inbox overload. I tested it and it grouped emails into a cleaner workflow, summarized long threads, and helped me pull useful details from my inbox without digging through messages one by one.

That said, Shortwave is still a narrower assistant than tools like ChatGPT or Lindy. It shines when email is the problem you want to fix. It does not try to become your all-purpose AI assistant across research, planning, and task execution.

It works best if you are willing to change how you handle email, since its bundled, triage-heavy style feels different from a normal inbox.

Key features

Pros

Cons

What users say

Shortwave gets the most praise from people who want a smarter Gmail experience. It works best when you buy into its inbox style. However, a few reviews mention the unintuitive UI. That makes it a great specialist pick, not the best fit for everyone.

Pricing

Bottom line

Choose Shortwave if you want a free AI assistant focused on Gmail inbox triage. It works well for summaries, search, and faster email handling. If you want broader help across writing, research, meetings, and task execution, look for a tool with more range.

7. Notion: Best Free AI assistant for notes, docs, and internal knowledge

What it does: Notion helps you write, summarize, search, and organize information with AI.

Best for: Teams and individuals who already use Notion for docs, notes, wikis, and project planning.

Notion’s AI feels most useful when your work already lives in Notion. It does a good job turning messy notes into cleaner drafts, pulling answers from internal docs, and helping you move faster inside a workspace you already know.

You can use Notion to write and find information inside Notion, but it does not give you the same range you get from assistants built for research, inbox work, or task handling across multiple apps. That makes it a weaker fit for anyone who needs help across their full stack.

Key features

Pros

Cons

What users say

Notion AI works best when you treat it as an upgrade to your existing workspace. It helps most with drafting, summarizing, and finding answers inside documents you already rely on. If your main problem is scattered internal knowledge, it feels practical and fast.

Pricing

Bottom line

Notion works well if you need AI for your notes, docs, and internal knowledge within Notion. If you need an assistant that reaches further across your inbox, calendar, and other apps, look elsewhere.

8. Lindy: Create your OWN AI Assistant for FREE

What it does: Lindy is an AI assistant you can text to check your inbox, review your calendar, track updates, and handle tasks across connected apps.

Best for: Founders, operators, sales teams, and busy professionals who want one assistant to answer questions and complete tasks across their apps.

When testing, I asked Lindy in plain English to summarize emails, prepare for upcoming meetings, update the CRM, and nudge the team with important updates. It's free trial gives you the same capabilities as the Plus plan, so you can test it properly.

You can start by describing what you want Lindy to do, connecting the tools you already use, and getting help right away. You can pick a template for common tasks like responding to emails, and text Lindy how you want it to respond to specific emails.

I realized that Lindy works across multiple domains and tasks among the AI assistant tools, most of which only help with writing or searching.

Key features

Pros

Cons

What users say

Lindy blends assistant-style chat with task handling. It’s a good fit for people who want to ask for help in natural language and get more than a text response back. The trade-off is that Lindy makes the most sense once you hook it into your work apps and give it a clear job to handle.

Pricing

Bottom line

Choose Lindy if you want a free AI assistant that can do more than write and summarize. If you like the idea of texting one assistant to handle inbox checks, meeting prep, lead updates, and other routine tasks across your tools, Lindy is one of the strongest options in this list.

Which free AI assistant should you choose?

You should choose the AI assistant that matches your use case and team size. An AI assistant like Lindy may be overkill if you only need AI for research or home control. Use the scenarios below to decide the best tool:

Choose Lindy if:

Choose ChatGPT if:

Choose Gemini if:

Choose Claude if:

Choose Perplexity if:

Choose Microsoft Copilot if:

Choose Shortwave if:

Choose Notion if:

How to make your own AI Assistant For Free

You do not need coding skills or complex infrastructure to create an AI assistant today. A few basic elements allow you to set one up quickly and start delegating tasks. Here’s what you’ll need:

A clear use case

Start with a specific purpose. Your assistant should solve a real task instead of trying to handle everything at once. For example, you might want an assistant to:

An AI assistant platform

You also need a platform that understands your instructions and executes tasks. Some popular tools include:

Access to your apps and data

Your assistant needs access to the tools where your work happens. Common connections include:

How to set up Lindy as your Free AI assistant

Lindy offers the fastest way to set it up as an AI assistant by simply texting it what you want it to do. Lindy understands the request and starts helping immediately.

Here’s how you can chat with Lindy:

Step 1: Create your free Lindy account

Go to Lindy and sign up for your free trial. The platform opens with a chat interface where you can interact directly with your assistant.

You do not need to configure anything at this stage.

Step 2: Connect the tools you use

Next, connect the apps your assistant needs to access. Lindy connects with hundreds of apps that allow it to gather information and complete tasks for you. Common integrations include:

Step 3: Tell Lindy what you want help with

Type your request in plain language. Lindy reads the request, searches the connected tools, and gathers the relevant information.

Step 4: Let your free AI Assistant handle the task

After you send a request, Lindy performs the task and returns the result in the chat.

Common mistakes when creating a Free AI assistant

My final verdict

If I had to pick one AI assistant for most readers here, I’d choose Lindy, included because it fits the needs of most people better than other AI assistants on the list. It can help with tasks like checking emails, reviewing meetings, tracking leads, and staying on top of updates across their tools. On the other hand, ChatGPT is the easiest general starting point, while Claude is the stronger choice for long-form writing.