As of September 2026, the most useful free options are ChatGPT Free, Claude Free, the Gemini app, Microsoft Copilot, Gemini Notebook and Perplexity for thinking and writing, plus Zapier Free and Make Free for automation. The catches: usage caps, chats that may train their models unless you opt out, ads on ChatGPT Free and Copilot, and tiny automation allowances.
The catch that matters most to a business isn't a cap, it's the contract. Free tiers are consumer products. None of them comes with a data processing agreement, and their default settings are designed for individuals, not for handling your customers' details. So the working rule for everything below: free tools for your own thinking, drafting and research, and for public or anonymised information; a business plan for anything containing client, patient or staff data. With that rule in place, free AI can take a surprising amount of work off a small business.
Each entry below covers what the tool is good for, a concrete example, how to start, and the catch. Limits change monthly, so treat the figures as a snapshot and check the vendor's page before you depend on one.
1. ChatGPT Free: the all-rounder, with ads and training on
What you get. OpenAI's free tier now describes everyday text chats as unlimited, subject to abuse safeguards, with GPT-5.6 Luna as the default model. File uploads, image generation and data analysis keep separate, tighter limits, and a free project holds up to five files.
Example. A plumber drafting a quote follow-up:
Write a short, friendly follow-up to a customer who received a quote for a
combi boiler replacement 6 days ago and hasn't replied. Mention the quote
is valid for 30 days and that we can answer questions by phone. 80 words max.
Sign off "Kind regards, [first name]".The draft that comes back is usable in seconds. What you'd fix: it tends to add a discount or urgency ("book this week to secure your slot") that you never offered. Delete anything you didn't ask for.
The catch. Two of them. OpenAI says ads may appear on the Free and Go plans (Plus and above have none), though it says advertisers don't see your conversations. And on Free, Plus and Pro, "Improve the model for everyone" is on unless you switch it off under Settings, Data controls. Even with it off, giving a thumbs up or down can send that whole conversation for training. See whether free ChatGPT is enough to run a business on for the fuller picture.
2. Claude Free: strong writing, and a training choice to check
What you get. Claude's free plan includes chat on web, desktop and mobile, web search, file creation, memory, connectors to other apps, up to five projects, and access to Anthropic's Sonnet and Haiku models. It excludes Claude in Chrome, the Research feature and the most capable models.
Example. An osteopathy clinic turning a dense page of aftercare advice into something patients will read: paste the clinic's own text, ask for "the same advice at a reading age of about 12, in short bullet points, without adding any new advice". The result is clearer; the thing to check is that nothing clinical changed in the rewrite, because a simplified sentence can quietly change meaning.
The catch. Usage limits are tighter than on paid plans and aren't published as fixed numbers, so heavy days end early. You choose at sign-up whether your chats can train Anthropic's models, and you can change it later under Settings, Privacy. If training is on, chats can be kept for up to five years; with it off, about 30 days. There's no data processing agreement on consumer plans.
3. The Gemini app: generous features, human reviewers
What you get. Google's free tier includes a fast Flash model with limited access to Gemini 3.1 Pro, Deep Research, image generation and editing, Gems (which become skills from November 2026) (reusable instructions) and Gemini Notebook.
Example. A hearing-aid shop owner using Deep Research to prepare for a meeting with a new battery supplier: "Summarise what's publicly known about [supplier name]: product range, recent news, and any complaints about delivery times, with sources." The report saves an hour of searching. The fix: check each claim against its source, because research reports mix fresh and stale pages.
The catch. With Keep Activity on, your chats are saved, used to improve Google's AI, and a subset is read by human reviewers, with reviewed chats kept for up to three years. Google's own privacy hub asks users not to enter confidential information they wouldn't want a reviewer to see. With Keep Activity off, chats are still kept for 72 hours. Treat it as a public-information research tool, not a place for client details.
4. Microsoft Copilot (personal): free, with personalised ads
What you get. The consumer Copilot app is free with a personal Microsoft account, on the web, Windows, macOS and mobile.
Example. An electrician asking for three versions of a short social post about a new EV-charger installation service, in a friendly local-trade tone. Quick and decent; what you'd fix is the generic enthusiasm ("exciting news!") that makes every tradesperson sound the same.
The catch. Microsoft shows personalised ads in Copilot to signed-in personal account users, controlled by a "See ads that interest you" setting. Model training is governed by two settings, "Training on conversation activity" and "Training on voice conversations", and Microsoft notes that opting out doesn't exclude your conversations from use for advertising, safety and general product improvement. If your business runs Microsoft 365, use item 7 instead.
5. Gemini Notebook: free answers from your own documents
What you get. Gemini Notebook (formerly NotebookLM) answers questions using only the sources you upload, with citations to the exact passage. The free Standard tier allows 100 notebooks, 50 sources per notebook and 50 chats a day, and each source can be up to 500,000 words.
Example. A podiatry clinic uploads its cancellation policy, price list and staff procedures, and reception asks "how much notice do we need for a nail surgery cancellation?" The answer arrives with the policy line highlighted. The fix it needed: an old 2024 price list was also uploaded, and one answer cited it. Remove superseded documents; how RAG works explains why.
The catch. Fifty chats a day is plenty for one person and tight for a busy front desk. Google says notebook data isn't used for training unless you give feedback, but a personal account has no data processing agreement, so patient or client files belong in a Workspace account, where uploads aren't reviewed by people or used for training even with feedback.
6. Perplexity: research with sources attached
What you get. Search-style answers with numbered citations on every response, plus a small daily allowance of the deeper, multi-step searches.
Example. A pharmacy owner checking "what has changed in the last six months for [wholesaler name]'s ordering portal and delivery schedule?" before a supplier review. The answer is quick and sourced. The fix: two of the five sources were more than a year old, so the "recent changes" weren't recent. Always click through.
The catch. Perplexity's "AI Data Retention" setting is on by default on the Free, Pro and Max plans, which means your searches can be used to improve its models until you turn it off. The deeper searches are rationed on Free. For how it compares on business research, see Perplexity vs ChatGPT for business research.
7. Microsoft Copilot Chat: free if your business runs Microsoft 365
What you get. Copilot Chat comes with Microsoft 365 business plans at no extra cost, signed in with your work account. It now works on open files and Outlook mail, and its prompts and responses are covered by Microsoft's enterprise data protection: the Data Protection Addendum applies and they aren't used to train foundation models.
Example. A two-person electrical firm on Microsoft 365 Business Basic ($7 a user a month on annual billing) opens a supplier's terms in Word and asks Copilot Chat to list the payment terms, returns window and delivery charges. It's the same kind of task as the free consumer tools, but under a business contract.
The catch. It's only free if you're already on a Microsoft 365 business plan. And web searches it makes go to Bing under separate terms, where Microsoft acts as an independent controller, so don't put client names into questions that need the web. The paid licence adds reasoning across emails, meetings and files together; Copilot Chat vs Microsoft 365 Copilot sets out what the upgrade buys.
8. Canva Free: quick visuals, on an AI allowance
What you get. Canva's free plan includes some of its AI tools, such as Magic Write, with usage drawn from a limited monthly AI allowance.
Example. An osteopathy clinic making a waiting-room poster about a new evening clinic: Magic Write drafts three headline options, and a template does the rest in 15 minutes. The fix: the AI-written body text promised "instant relief", which a clinic shouldn't claim. Rewrite any health claims yourself.
The catch. The monthly allowance runs out, and heavier AI features draw it down faster. On privacy, Canva's settings for personal accounts include two separate AI switches, one for your general usage and one for your content, so check both. Canva says content from Teams, Business, Enterprise and Education accounts isn't used to improve its AI features.
9. Otter Basic: meeting transcripts, in 30-minute pieces
What you get. Otter's free Basic plan includes 300 transcription minutes a month, a maximum of 30 minutes per conversation, three lifetime imports of audio or video files, and 20 AI chat questions a month.
Example. A hearing-aid shop records a 25-minute supplier call about a product recall (with the supplier's agreement) and gets a transcript plus a summary of actions. The fix: the summary gave the recall deadline as the 15th when the supplier had said the 16th; names, dates and figures always need checking against the transcript.
The catch. The 30-minute cap cuts longer meetings short, and three lifetime imports is a trial, not a workflow. Tell everyone on a call that it's being recorded and transcribed, and remember the recording lives on Otter's servers. The paid plans start at $8.33 a user a month billed annually.
10. Zapier Free: automation, two steps at a time
What you get. 100 tasks a month, where a task is each successful action step. Triggers and filters don't count.
Example. An electrician's website form: "when a new enquiry arrives, add a row to the enquiries spreadsheet". That's one task per enquiry, so 100 enquiries a month fit.
The catch. Three of them. Free Zaps are two-step only (one trigger, one action), so you can log the enquiry or send an acknowledgement, not both. Zapier checks for new data every 15 minutes on Free, and Webhooks by Zapier and AI steps aren't available. And when you hit the monthly limit, new runs are held until the allowance resets; they can be replayed later, but in a busy month enquiries stop reaching the sheet in the meantime.
11. Make Free: more steps, but watch the credits
What you get. Up to 1,000 credits a month, with multi-step scenarios allowed. Routers use no credits, and a bundle stopped by a filter uses none.
Example. The same electrician builds the two-step job Zapier Free couldn't: log the enquiry and send an acknowledgement email, in one scenario.
The catch. Every scheduled check uses a credit even when nothing has arrived. A scenario polling every 15 minutes makes about 2,880 checks a month, nearly three times the free allowance, so it runs dry in about ten days. Set the schedule to hourly (about 720 checks) or use an instant trigger where the app supports one. And if you run your business on a free @gmail.com account, Make's help says connecting restricted Google services such as Drive or Sheets requires creating your own OAuth client in Google Cloud, which is a fiddly half hour for a non-technical owner.
12. HubSpot's free CRM: a chatbot builder and a writing assistant
What you get. A free CRM with live chat and a rule-based chatbot builder that can qualify leads, book meetings and create tickets, plus Breeze Assistant for writing and summaries on the Free and Starter tiers.
Example. A plumbing firm adds a menu bot to its website: "Emergency", "Book a service", "Get a quote". Each path collects details into the CRM. No AI improvises, so nothing can be invented.
The catch. The Customer Agent needs a Professional or Enterprise tier, and the Prospecting Agent runs on paid credits from Starter upwards, far from free. HubSpot's pricing page often shows promotional first-year prices, so look for the list price before planning an upgrade.
Free AI tucked inside software you may already have
Some of the best free AI isn't a separate product. Check what's already switched on in your existing subscriptions before signing up for anything new:
- Shopify Inbox includes a free AI agent that answers shoppers on its own for merchants on Basic or above. It can use web search as a secondary source, so test it on your own policy questions first.
- Google Workspace plans now include Gemini: in Gmail and the Gemini app from Business Starter, and across Docs, Sheets, Drive and Meet from Business Standard.
- Gmail's "Help me write" can match the tone of your past emails on Business Starter, Standard and Plus since May 2026, which makes routine replies sound more like you without a separate tool.
- Zoom retired the "AI Companion" brand in June 2026, but the features, now named for what they do (meeting summary, chat compose and so on), remain included on eligible paid Zoom Workplace plans.
- Xero announced Smart Document Capture, its built-in receipt and bill capture, as free on all plans in July 2026.
- Atera, the IT management tool, made its AI Copilot free on every plan from June 2026.
- Google Workspace for Nonprofits includes the Gemini app and Gemini Notebook at no extra cost, if your organisation qualifies.
The reverse happens too. Meta's Business Agent, which answers customers in WhatsApp, Instagram and Messenger, has been charged per token since 1 August 2026 with no free window. "Free" is a status that changes.
The catches side by side
| Tool | Main limit | Privacy default to check | Ads? |
|---|---|---|---|
| ChatGPT Free | Tighter caps on files, images and analysis | Training on until switched off | May appear |
| Claude Free | Unpublished usage caps; 5 projects | Training is your sign-up choice | No |
| Gemini app | Limited access to the Pro model | Keep Activity; human review | No |
| Microsoft Copilot (personal) | Consumer terms | Two training settings | Personalised ads |
| Gemini Notebook | 50 sources, 50 chats a day | No training unless you give feedback | No |
| Perplexity | Few deep searches | AI Data Retention on by default | No |
| Copilot Chat (work account) | Needs Microsoft 365 business | Enterprise data protection | No |
| Canva Free | Monthly AI allowance | Two AI settings | No |
| Otter Basic | 30 minutes per conversation | Recordings stored by Otter | No |
| Zapier Free | 100 tasks, two-step Zaps | Not applicable | No |
| Make Free | 1,000 credits, polling uses them | Not applicable | No |
| HubSpot free CRM | AI agents on paid tiers only | Check your data settings | No |
Five signs a free tier is costing more than it saves
- You hit a limit every week. If Gemini Notebook's daily chat cap or Otter's 30-minute limit interrupts real work every week, the time spent on workarounds is already worth more than the subscription.
- You keep re-uploading the same files. A free ChatGPT project holds five files. If you're constantly swapping price lists and policies in and out, the 25 files on Plus or 40 on Business cost less than your time.
- A business process depends on it. If enquiries, invoices or bookings stop moving when a free allowance runs out, the tool has become infrastructure, and infrastructure shouldn't sit on a tier with no service commitment and terms that can change next month.
- Staff use their own free accounts for customer work. This is the most expensive sign, because the cost isn't a subscription; it's customer data sitting in personal accounts with training switched on and no contract behind it.
- You're managing settings on six different tools. Consolidating onto one business plan with an admin console is often simpler, and safer, than policing several free ones.
None of these means abandoning free tools. It means paying for the one that's become load-bearing and keeping the rest free for occasional jobs.
A zero-cost stack for a sole-trader electrician, and when to pay
To see how far free can go, take a sole-trader electrician (an illustrative case) who runs the business on:
- ChatGPT Free for quote emails, follow-ups and social posts, with training switched off;
- Gemini Notebook holding the price list, standard terms and the most common customer questions;
- Zapier Free logging website enquiries to a spreadsheet;
- Canva Free for a monthly flyer and social images.
Cost: $0 a month. Time saved: roughly three hours a week on writing and searching for information. Where free starts to hurt: in the busy spring months enquiries reach 140, past Zapier's 100-task allowance, so late-month enquiries are held until the reset. And the electrician wants an automatic acknowledgement email too, which a two-step Zap can't do.
The upgrade maths is simple. Zapier Professional at $19.99 a month billed annually covers 750 tasks and multi-step Zaps. If a lost or late enquiry is worth even one job a quarter, that pays for itself. ChatGPT Plus at $20 a month removes the ads, but it's a personal plan and still trains on chats until you switch that off; the reason to pay is heavier file and data work, not privacy. The day a first employee joins and starts handling customer details, the right move is a business plan such as ChatGPT Business ($25 a seat monthly, two-seat minimum) or the Copilot Chat that comes with Microsoft 365. Free vs paid AI tools for a trades business works through that decision in more detail, and free AI tools vs paid plans covers it for other kinds of business.
Six settings to change on day one
- ChatGPT: Settings, Data controls, switch off "Improve the model for everyone". Use Temporary Chat for one-off questions you don't want kept in history (OpenAI may still keep a copy for up to 30 days).
- Claude: Settings, Privacy, check the model training setting matches what you chose at sign-up.
- Gemini: decide on Keep Activity. Off means no training on future chats, with a 72-hour safety copy. Otherwise, use temporary chats for anything you'd rather a reviewer didn't see.
- Microsoft Copilot (personal): Privacy settings, switch off "Training on conversation activity" and "Training on voice conversations", and review "See ads that interest you".
- Perplexity: account settings, switch off AI Data Retention.
- Canva: privacy settings, check both AI switches.
Ten minutes of settings, done once, removes most of the privacy catch from free AI. The caps and allowances are harder to escape, and that's by design: free tiers are shop windows. Use them freely for the work they suit, and pay for the one or two tools that have become part of how your business runs.
Free AI tools: questions owners ask
Who owns the text and images free AI tools produce?
Under OpenAI's and Anthropic's terms, you receive whatever rights they hold in the output, "if any": the wording admits there may be no copyright to own. Other tools' terms differ, so check before relying on AI-made logos or slogans as exclusive brand assets. Similar prompts can also produce similar results for other users, which matters for anything you want to be distinctive.
Will these free tiers stay free?
Not necessarily in their current form. In 2026 alone ChatGPT's free tier gained ads, and Meta's Business Agent moved from free to per-token charging with no free allowance. Limits and features change monthly. Don't build a process your business depends on around a free tier you couldn't quickly replace or pay for.
Which free tool should a business owner try first?
Start with one general assistant (ChatGPT, Claude, Gemini or Copilot) and use it daily for a fortnight on real writing and planning jobs, after switching its training setting off. Add Gemini Notebook if you keep asking questions about your own documents, and a free automation tier only once you've spotted a repetitive copy-and-paste job worth automating.
Further reads
- Does ChatGPT Train on Client Data? Business vs Free Plans — Exactly how ChatGPT's free and business plans differ on training.
- Shadow AI: How to Stop Staff Pasting Client Data Into Free Tools — Stopping staff pasting client data into free tools.
- How to Set Up Company AI Accounts Instead of Personal Logins — Moving the team from personal free logins to company accounts.
- Free vs Paid AI Marketing Tools: What Is Worth Paying For — The same free-versus-paid question for marketing tools.
- Is Open-Source AI Really Free? The True Cost for a Small Business — Why open-source AI isn't free once you count the running costs.
- ChatGPT vs Claude vs Gemini vs Copilot for Small Business (2026) — Comparing the four big assistants once you're ready to pay.
- How Small Charities Can Use AI With Almost No Budget — A seven-stage plan for a charity with no AI budget: get verified, pick a free workspace, choose three jobs, set a data rule, and trial it for a month.
- What Is the Cheapest Way to Start Using AI in a Small Business? — A $0 first fortnight, the AI features sitting unused in your software, a church office's first month, and when the first $20 is worth paying.
- Are AI Lifetime Deals Worth Buying for a Small Business? — What lifetime really means on a deal page, why per-use AI costs strain one-off prices, a payback test, and an exit plan to write on day one.
- AI Startup Credits and Discounts a Small Firm Can Actually Claim — Who the big AI credit programmes are really for, what a self-funded bike shop could claim, and the ordinary discounts that save more than any credit.
- AI Tools and AI Development: The Complete 2026 Guide — the AI hub, including every tutorial in the AI-for-business series.
Sources: OpenAI help centre pages on the free tier, ads and data controls; Claude pricing page and Anthropic's privacy centre; Google's Gemini subscriptions page, Gemini Apps Privacy Hub and Gemini Notebook help; Microsoft Support on Copilot privacy controls and Microsoft Learn on Copilot Chat; Perplexity and Canva privacy information; Otter pricing; Zapier and Make pricing and help pages; HubSpot's chatbot builder and Breeze pages (all checked September 2026).