ai-service: which services & models can I use for free

[practicalli-johnny]

What AI services can be used, via web/app/api, without a fee?

A free service (assuming it has a limit on number of questions) is a very useful way of understanding the value of an AI service and specific model.

NOTE: The only way I have seen to evaluate an AI service / model is to actually use it, and use it quite a lot.

[practicalli-johnny]

I searched Google.com for "what AI services can I use without a subscription?" and it prompted me to use its new AI service (even though the web results also included an AI summary)

This is the response from the Google AI

August 19, 2025
what AI services can I use without a subscription?
It appears you're interested in exploring AI services without needing a subscription. Here's a breakdown of some great options available for free:
Free AI Services for Various Needs

    Writing & Content Creation:
        ChatGPT: Provides a free tier utilizing GPT-4o mini, supporting text generation, brainstorming, code assistance, and web browsing with usage limits.
        Grammarly: Offers free AI rewrite suggestions, tone adjustments, and assistance in improving writing clarity and engagement.
        Copy.ai: Offers free access to copywriting tools and templates for various formats, such as social media posts, emails, and product descriptions, with a monthly word limit and single-user access.
        HubSpot AI Writer: Integrated with the HubSpot CRM, it uses real-time data to personalize content, generate blog outlines, update posts for SEO, and create newsletters, with a free plan.
        Notion AI: Integrated within Notion, it allows for document summaries, meeting note generation, and content drafting, providing a free and customizable AI assistant within the workspace.
        Rytr: Provides a free plan with a monthly character limit for drafting emails, ideas, and short posts using GPT-3 technology.
    Image & Design:
        DALL-E: Accessible through the free ChatGPT tier, it transforms text prompts into images, suitable for illustrations, concept art, and blog visuals.
        Canva AI: Provides AI-powered design features like Magic Design, which creates designs from text prompts, access to a vast library of templates and stock photos, along with tools for customization and resizing visuals.
        Playground AI: Offers a free plan for generating and editing images from text prompts, allowing the blending of real and AI-generated elements, and supporting integrations with e-commerce platforms.
        Illusion Diffusion: Uses AI to create optical illusions from photos, with customization options and access to various settings, available through the Hugging Face Community.
        Krea.ai: A platform for generating visuals from text inputs, suitable for marketing and design tasks, with free access to essential features.
        Deep Dream Generator: Transforms text prompts into images, assisting with marketing campaigns, social media visuals, and blog posts.
        Designify: Generates images on autopilot, allowing exploration of various creative directions by generating variations from a single concept.
        Adobe Firefly: Offers image generation with Generative Fill and Expand features and integrates with the Adobe suite, available for free on the web or through Adobe Express.
        Pixlr: A modular online photo editor with AI features like Cutout and Backdrop, allowing for retouching, cropping, and enhancing images with a free tier.
    Video Creation & Editing:
        Synthesia: Offers a free plan for generating AI videos with stock avatars and voices in multiple languages, including features like adding avatars, instant voiceovers, and video editing with templates.
        Invideo: Integrates AI models to simplify video creation.
        Runway ML: Provides a free plan with credits for generating short videos and images using AI, including features like image-to-video conversion and text-to-image with reference support.
        Descript: A tool that simplifies audio and video editing by allowing users to edit transcripts, remove filler words, and enhance audio with AI.
        Lumen5: Transforms long-form text into videos with automatically selected visuals and captions, with a free account allowing for the creation of a limited number of videos per month.
        Pictory: Converts long-form text into shareable videos with automatically selected visuals and captions, offering a fast way to repurpose written content.
    Research & Productivity:
        Perplexity AI: Provides structured answers to natural language questions with clickable source citations, useful for researching and summarizing information.
        Google AI Studio: A web-based tool for prototyping and experimenting with the Gemini Developer API, offering free tiers across the family of multimodal generative AI models.
        Google Gemini: Free to use for individuals with a personal Google Account, it assists with understanding and finding big ideas and information.
        Otter.ai: Provides real-time transcription and note-taking for meetings on platforms like Zoom, Microsoft Teams, and Google Meet, along with summaries and action item generation.
        Fireflies.ai: Records and analyzes conversations during meetings, identifies key action items, and integrates with platforms like Zoom and Google Meet.
        Zapier: Connects various apps through automated workflows ("Zaps") and includes AI features for building chatbots, organizing data, and creating custom interfaces, with a free plan for basic automations.
        Reclaim.ai: An AI scheduling tool that helps manage calendars and find time to complete tasks.
        Hive: AI project management software that creates projects from a prompt, allowing for task breakdown, time tracking, and collaboration.
        Slidesgo AI Presentation Maker: Generates presentations from a title, tone, and theme, with customization and editing tools, available for free.
        Be My Eyes: An AI-driven app assisting visually impaired individuals with real-time video calls with sighted volunteers or AI assistants.
        Snopes Factbot: An AI-powered chatbot specializing in fact-checking news, rumors, and conspiracy theories.
        AutoGen: An open-source framework from Microsoft for building multi-agent systems based on Large Language Models (LLMs).
        Small SEO Tools – Reverse Image Search: An advanced AI solution for searching by images, finding copyright-free ideas, and detecting duplication.
    Other Specialized Tools:
        Beatoven AI: An AI-powered platform for music production and audio editing, offering generative AI tools to create and manipulate audio files with a free version allowing limited audio creation.
        Codeium AI: A software development assistant that uses AI to generate code, automate tasks, and assist with data analysis, available for free.
        Documator: Offers a free AI-powered PDF summarizer (for files up to 10MB) and a cloud-based document automation platform.
        Lalal.ai: An AI audio stem splitter that isolates and removes specific tracks from audio files, with 10 minutes of free use available. 

Limitations of Free AI Tools
Free AI tools often have limitations compared to paid services, including: 

    Limited output quality: Many free platforms restrict exports to lower resolutions and may have limitations on visual fidelity or the presence of watermarks.
    Limited features: Free versions may not include advanced customization options, integrations, or access to premium features.
    Usage restrictions: There may be limitations on the number of uses, file sizes, or time constraints.
    Lower rendering speeds: Free users may experience slower processing times, especially during peak hours.
    Potential privacy and data security risks: Free tools might collect and share user data more extensively than paid services, and may lack robust security measures.
    Limited commercial usage rights: Some free tools may restrict the use of generated content for commercial purposes without an upgrade.
    Lack of customer support: Free users typically receive minimal or no direct assistance. 

Important Note: It's always a good idea to check the specific terms and conditions of any free AI tool before relying on it for crucial tasks, especially those involving sensitive information or commercial use. 

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