The best free AI assistants you can use in April 2025

Would you like to know which are the best free AI assistants? Artificial intelligence has ceased to be a futuristic promise and has become an indispensable ally in our daily lives. With just a click or a voice command, it's now possible to get instant answers, generate content, automate tasks, or even hold realistic conversations with virtual assistants. New tools emerge every month, and April 2025 is no exception.

This article is a comprehensive guide to discovering the best free AI assistants you can start using today. We've compiled and analyzed dozens of sources and compared them, separating the marketing from the actual features. You won't find simple lists here: we show you how each tool works, what you can do with it, and in what scenarios it's most useful. Let's get started.

What is an artificial intelligence assistant and what is it used for?

An artificial intelligence assistant is a software that uses techniques such as machine learning and natural language processing (NLP). to interact with users, either through text or voice. Its main function is to help perform automated tasks such as answering questions, taking notes, generating content, coordinating meetings, organizing ideas, scheduling tasks, or translating languages.

There are different types of AI assistants depending on their purpose:

• Conversational assistants , the ChatGPT, Claude or Gemini, which allow for fluid dialogues.
• Meeting attendees like Otter, Fathom or Fireflies, which record and summarize video calls.
• Creative assistants like Jasper or murf, focused on writing or voice generation.
• Educational assistants , the Socratic or ELSA Speak.
• Productivity assistants like Notta or Motion, which organize the workflow.

It is important to note that most of these assistants work in the cloud, Which means you can use them from any device with an internet connection. Many also have mobile apps or browser extensions.

Top Free AI Assistants You Can Use in April 2025

Below we review the highest-rated AI assistants currently available, highlighting their most relevant free features. We have grouped them by type of tool and context of use.

1. General conversational assistants

These assistants are used for conversations, asking questions, getting ideas, summarizing texts, translating content, or performing general tasks. They are the most versatile.

ChatGPT (OpenAI)
One of the most popular conversational assistants on the planet. Its free version allows you to use GPT-3.5 with unlimited interactions, while the paid plan adds access to GPT-4o, DALL·E imaging, file analysis features, and context memory. Learn more in this article. OpenAI releases ChatGPT's advanced voice mode.

Claude (Anthropic)
It stands out for its more human and friendly conversational tone. Claude 3.5 Sonnet is ideal for long tasks such as document analysis, programming, or brainstorming, with generous limits on text length.

Gemini (Google)
The old Bard has been renamed Gemini. It integrates with the entire Google ecosystem (Gmail, Drive, Docs, etc.) and allows you to compose emails, reply with real-time data, and even analyze images. It also has a fairly comprehensive free version.

Perplexity
More than a chatbot, it's an AI-powered search engine. It offers you informative answers from thousands of sources and cites them with links. Ideal for research without wasting time searching for links. It's free to use without restrictions.

Le Chat (Mistral AI)
A European proposal that has surprised with its speed: it processes more than 1.000 words per second. Ideal for developers due to its speed in coding tasks, but also useful for general questions.

Copilot (Microsoft)
This wizard integrates deeply with the Windows operating system and Microsoft tools (Word, Excel, Outlook, etc.). It's powerful and useful for productivity, but has some limitations in its free form.

2. AI assistants for meetings and transcription

If you participate in a lot of video calls on Zoom, Teams, or Meet, these tools are a lifesaver. They record, transcribe and generate automatic summaries with timestamps and speaker identification.

otter.ai
Compatible with Zoom, Meet, and Teams. It can automatically connect to your calendar, join your meetings, record and transcribe them, detect slides, and generate summaries. The free version includes 300 minutes per month. Learn how to access Zoom.

Fathom
Record and transcribe meetings with great accuracy in over 20 languages. Create organized summaries and share clips via Slack or email. Its free plan includes all the essentials and is notable for its simplicity.

Fireflies.ai
Very popular for its collaborative features: you can comment on transcripts, assign tasks, or highlight key phrases. It integrates with CRMs like Salesforce or HubSpot. The free option is suitable for one-on-one meetings.

laxis
Ideal for sales teams. It not only records meetings, but also extracts useful data, manages opportunities, and connects to your CRM. It offers predictive features to improve conversions.

Read.ai
Minimalist but effective. Summarize meetings, identify key elements, and apply metrics to improve your communication. Compatible with platforms like Slack and Google Workspace.

3. AI-powered writing assistants

Whether you're blogging, writing emails, creating ads, or rewriting content, these tools are your allies.

Jasper
A powerful writing assistant that uses AI to generate high-quality content, from social media posts to full-length articles.

DeepSeek
A tool that specializes in comprehensive research and content analysis, ideal for those who require accurate and well-documented information.

Mistral
An assistant that combines writing and design capabilities, making it easy to create compelling visual content.

Zhipu AI
Although less well-known, this wizard offers robust features for generating creative text, useful for writers and creatives.

QuillBot
This tool is designed to improve writing quality by offering synonyms and efficiently rewriting sentences.

rythr
Ideal for entrepreneurs, Rytr helps you create persuasive, SEO-optimized texts, achieving results in less time.

sudowrite
An assistant focused on story creation and improvement, useful for writers looking for inspiration and narrative structure.

Grammarly
More than just a spell checker, it offers grammar and style suggestions to improve your English writing.

wordtune
This tool helps rewrite sentences to make them sound more natural, improving the flow of any text.

photoleap
It allows for advanced image editing, offering creative tools for those looking for a boost in their visual publications.

murf
An AI speech generator, it allows you to create high-quality audio from text, ideal for presentations and podcasts.

speechify
With this tool, you can convert text into speech, making reading easier for people with visual impairments.

flick
It allows for the management and scheduling of content on social networks, optimizing publication time.

Synthesia
A platform that creates AI-generated videos, ideal for marketing and presentations.

Video
It makes it easy to create videos from customizable templates, ideal for those who need compelling visual content.

Fathom
It can also be used in the field of visual content creation, allowing you to automatically transcribe and summarize videos, although this was already mentioned in the previous section.

Design tools like Canva Magic Studio
They allow you to create visual content intuitively, with functions that simplify the graphic design process.

look
Ideal for entrepreneurs, this tool generates logos and branded products with AI, facilitating the branding process.

When choosing an AI assistant, it's crucial to identify your specific needs. Each tool offers unique features that can be a great ally in your daily routine and boost your productivity. With the wide variety available, you're sure to find the option that best suits you.