List of Top 10 Free AI Tools

The following below List of Free AI Tools in multiple categories

[1] – AI Chatbots & Content Generation

[1.1] – ChatGPT (Free Tier) – OpenAI’s conversational AI (GPT-3.5 is free).

[1.2] – Claude AI – Anthropic’s AI assistant (free tier available).

[1.3] – Google Gemini (formerly Bard) – Google’s AI chatbot.

[1.4] – Hugging Face Chat – Open-source AI models.

[1.5] – Perplexity AI – AI-powered search with citations.

[1.6] – DeepSeek Chat – Free AI chatbot with long-context support.

[1.7] – app.otio.ai – Free / Paid AI chatbot

All ((Llama 4, DeepSeek R1, GPT-4o, Claude, Gemini 2.5 Pro))-in-one platform –> otio.ai

Skip reading 100s of pages docs or watching hours of video. Extract the insights (more summarized) you need, fast

  • Access all premium AI models
  • Chat with Llama 4, DeepSeek R1, GPT-4o, Claude, Gemini 2.5 Pro and more!
  • Chat with your documents
  • Instant Youtube summaries
  • Document comparison
  • AI text editor and more!

Still doing research the hard way?

❌ Manually reading endless reports?
❌ Watching long videos just for key insights?
❌ Struggling with writing, citations, and structuring?

It’s time to upgrade your workflow.

With Otio, that’s exactly what you get!

No more wasting hours reading, summarizing, and organizing information—Otio does it for you instantly.

What Makes Otio Stand Out?
✅ Lightning-Fast Summaries – Extract key takeaways from long-form content instantly.
✅ AI-Assisted Writing – Say goodbye to writer’s block with structured drafts and edits.
✅ Reliable Research – Get accurate, cited information without endless fact-checking.
✅ Automated Workflows – Set up smart AI routines to streamline your research process.

By using otio.ai your asking query will be detailed, structured AI summaries & Automatically generated summaries from Images, Videos, PPT, Audio, Docs, Links, PDFs to Youtube videos

[1.8] – lambda.chat – Free / Paid AI chatbot – DeepSeek based advanced open-source large language models (LLMs) as free.

Lambda Chat is a web-based that provides high-performance AI chat models accessible to everyone, including developers, researchers, and AI enthusiasts

Lambda leverages DeepSeek’s open-source models (DeepSeek-R1 671B) to enhance its platform, offering users access to advanced AI capabilities

Multiple Use Cases:

AI Experimentation: Test and compare different LLMs for various tasks, such as content generation, translation, and summarization.

Application Development: Incorporate advanced language models into applications via the Inference API.

Educational Purposes: Learn about LLM capabilities and behaviors through hands-on interaction.

Is there Any Relationship Between https://deepseek.com & https://lambda.chat/

Lambda Chat and DeepSeek.com are distinct entities

DeepSeek is a Chinese AI research company that originated from High-Flyer, a quantitative hedge fund. It has developed several open-source large language models (LLMs), including the DeepSeek-R1 series

&

Lambda Chat, operated by the U.S.-based company Lambda, provides a platform for users to interact with various LLMs. Lambda has integrated DeepSeek’s models, such as DeepSeek-R1 671B, into its offerings,

[2] – AI Image Generation & Editing

[3] – AI Coding & Development

[4] – AI Speech & Voice Tools

  • ElevenLabs (Free tier) – AI voice generation
  • Speechify – AI-powered text-to-speech
  • Voicemaker – Free AI voiceover tool
  • Murf AI (Limited free version) – AI voice generation
  • Resemble AI – AI-powered voice cloning
  • Voicemod (Free Version) – AI voice changer.
  • Boomy – AI music generator.
  • RVC (Retrieval-Based Voice Conversion) – Open-source AI voice cloning.

[5] – AI Video & Audio Editing & Generation

[5.1] – ElevenLabs (Free Tier) – AI voice generation.

Write Text content to convert into Voice Speech & Click on Generate Speech button , it will be auto converts.

Once done download & finally

[5.2] – HeyGen (Free Trial) – AI avatar video creation.

Example:: Created Video by Using Text & Avatar based Content

[5.3] – Descript (Free Plan) – AI audio & video editing

Example :: Convert Text Into Avatar Based Video

Click on Generate Avatar on the left side to process it into a video

Finally Click on Export Button & Download Video as below

[5.4] – aistudio.google.com/generate-video – :: Generate Videos by Text Based Content

Example:: this AI Video Tool Text into Video.

I have put content in Video Gen Section & it generated Video as below

Show New York’s Buildings

[5.5] – ai.invideo.io – :: Generate Videos / Auto Video , Create short video , Make explainer video, Create animated film, YouTube, YouTube Short Video, Use my script based Video

Once Clicked on Generate Video redirected as below

Once done, redirect as below, select either Stock Media or Generative Media on bases below

Duration , Audiences, Platform

Finally click on Continue

Once clicked on Continued redirected as below, It will take some time , Please be patience

Finally Video Generated as below, here overserve Video, auto animated video as per images have been created inside Video.

Click on Download , asking for subscription (Upgrade)

Free Plan is Basic Plan, if you Video with Animation must be Paid Plan.

[6] – AI Research & Productivity

  • Elicit – AI-powered research assistant
  • Perplexity AI – AI-driven search engine
  • You.com – AI-powered search with chat features
  • Notion AI – AI-enhanced note-taking and organization
  • Otter.ai (Free plan available) – AI-generated meeting transcriptions
  • Notion AI (Free Plan) – AI-powered notes & docs.
  • Grammarly (Free Version) – AI writing assistant.
  • QuillBot – AI paraphrasing tool.
  • Elicit – AI research assistant.

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