The Best Free AI Tools — and What the Free Plans Really Include
Almost every popular AI tool has some kind of free access, but "free" means very different things. Some free plans are genuinely useful every day. Others are a one-time handful of credits, or come with rules that stop you using the results for work.
This guide picks the most useful free option in each category and spells out what the free plan includes — and what it doesn't — so you know where you'll hit the wall.
The short list
| If you want to… | Start with | Free plan in one line |
|---|---|---|
| Ask questions, write, brainstorm | ChatGPT or Claude | Everyday use with usage limits; the strongest models are partly paid |
| Fix grammar and tone | Grammarly | Grammar and spelling checks everywhere you type |
| Research with sources | Perplexity | Answers with cited sources; advanced searches are limited |
| Make images | Leonardo AI | 150 tokens a day; images are public |
| Generate voiceovers | ElevenLabs | 10,000 credits a month; no commercial license |
| Get help writing code | GitHub Copilot | 2,000 completions a month plus limited chat |
| Automate repetitive tasks | Zapier | 100 tasks a month, two-step Zaps |
| Run AI privately, with no limits | Ollama | Free on your own computer |
AI assistants
General chat assistants are where most people start, and all the big ones have a free plan.
- ChatGPT is the most versatile: writing, coding help, image creation, voice and web search in one app. The free plan has usage limits, and access to OpenAI's strongest models is limited. Paid plans start at $8 a month.
- Claude is especially strong at careful writing, long documents and reasoning. The free plan resets its usage limit over time; heavy users run into it quickly.
- Gemini is the natural choice if you live in Gmail, Docs and Drive, and its free tier includes image generation.
- Microsoft Copilot is free in Windows and on the web; the version inside Word, Excel and Outlook for businesses is paid.
Can't decide between the top two? See ChatGPT vs Claude.
Writing
Grammarly has the most useful free plan for everyday writing: grammar, spelling and clarity suggestions in your browser and many apps. Its more advanced rewriting features are on the paid plan. For drafting whole articles, the free AI assistants above do more than any free writing tool — dedicated marketing writers like Jasper and Copy.ai have no free plan.
Research
- Perplexity answers questions with links to its sources, so you can check them. Basic searches are free; the more thorough Pro searches are limited on the free plan.
- Consensus and Elicit search scientific papers and have free plans — useful for students and anyone who wants evidence, not opinions.
Images
Image generation has the most generous free options. Leonardo AI gives 150 tokens a day, Adobe Firefly offers free daily generations, and ChatGPT and Gemini both create images on their free plans. The usual catch: free images are often public, and commercial rights vary. Our step-by-step guide on how to generate images with AI for free covers each option in detail.
Video
This is the weakest category for free users, because video is expensive to generate. Runway gives 125 credits once — enough to try it, not to use it regularly. Pika's free plan has no monthly credits, and Synthesia's free plan is very limited. Treat free video plans as trials.
Audio and music
- ElevenLabs includes 10,000 credits a month for realistic text-to-speech, but the free plan has no commercial license — for paid work you need a paid plan.
- Suno gives 50 credits a day to make songs from a text prompt. Free songs come without commercial rights and can't be downloaded — you play and share them inside Suno.
- Whisper is OpenAI's open-source speech-to-text model. It's free with no limits if you're comfortable with a little technical setup.
Coding
- GitHub Copilot Free works in popular editors and includes 2,000 code completions a month plus limited chat and agent use.
- Cursor's free plan includes limited agent and chat requests in its AI-first editor, without third-party models.
- Replit lets you build and run apps in the browser for free, which suits beginners.
Choosing between them? Read how to choose an AI coding assistant.
Automation and productivity
Zapier's free plan runs 100 tasks a month with two-step Zaps — enough for a couple of simple automations, like saving email attachments to a folder. Make includes 1,000 credits a month and its visual builder, which goes further if you don't mind a steeper learning curve.
Open-source and local AI
If you want AI that's free with no usage limits, run it yourself. Ollama and LM Studio are free apps that run open models like Llama and Mistral on your own computer — your prompts never leave the machine. The trade-off is that you need decent hardware, and small local models are less capable than the best cloud assistants. Our beginner's guide to running AI on your own computer shows how to start.
Specialist free tools worth knowing
- Snyk scans your code and dependencies for security problems, with monthly test limits on the free plan.
- AlphaFold predicts protein structures, free for non-commercial research through the AlphaFold Server.
- Descript lets you edit audio and video by editing a transcript, with a free plan to try it.
The catches with free AI plans
Before you build a habit around a free plan, keep these in mind:
- Usage limits. Most free plans cap messages, credits or tokens, and some reset daily while others reset weekly or monthly.
- Weaker or fewer models. Free plans often use a smaller model, or switch to one after you reach a limit.
- Your data. Some services may use free-plan conversations to improve their models unless you opt out. Check the privacy settings, and don't paste confidential information into any cloud tool.
- Public by default. Some image tools publish free-plan images in a public feed.
- Non-commercial licenses. Free audio and music plans in particular often don't allow commercial use.
When to upgrade
Pay when a free limit stops you every day, when you need commercial rights, or when the better model saves you real time. Most paid plans let you cancel monthly, so try one for a month on a real project before you commit. Every tool page on AI Atlas lists the current starting price, and you can browse all categories to compare.
Tools in this guide
ChatGPT
AI AssistantsThe most popular AI assistant for writing, coding and reasoning.
Claude
AI AssistantsStrong reasoning and writing assistant with a large context window.
Grammarly
AI WritingAI grammar, tone and clarity checker for everyday writing.
Perplexity
AI ResearchAI search engine that answers with cited sources.
Leonardo AI
AI ImageGreat for game assets, concept art and consistent styles.
ElevenLabs
AI AudioUltra-realistic AI voices and text-to-speech.
GitHub Copilot
AI CodingAI pair programmer that suggests code right in your editor.
Zapier AI
AI ProductivityAutomate work across 9,000+ apps with AI.
Ollama
Open-Source & Self-HostedRun open-weight LLMs locally on your own machine with one command.
Keep reading
How to Choose an AI Coding Assistant
GitHub Copilot, Cursor, Replit, Tabnine or a general assistant? Six questions that decide which AI coding tool fits the way you work — and what it will really cost.
How to Generate Images with AI for Free
A beginner's step-by-step guide to free AI image generators: which tool to start with, how to write a prompt that works, and what free plans don't let you do.
How to Run AI on Your Own Computer: A Beginner's Guide
Run AI chat models locally with Ollama or LM Studio: what hardware you need, which model to start with, and the honest trade-offs versus cloud assistants like ChatGPT.