Best Artificial Intelligence software

PolyBuzz is an AI chatbot and roleplay platform where users converse with AI-generated characters or build their own. The platform gives access to a library it describes as more than 20 million characters, spanning anime, manga, movie and celebrity personas, and genre-based roleplay scenarios such as fantasy, horror, and romance tropes like enemies-to-lovers or fake dating. Users can build custom characters by setting a name, personality, backstory, appearance, and voice, and can import character concepts created on other platforms. Conversations run primarily as text chat, and paid tiers add AI-generated voice responses using text-to-speech, plus a Live Photos feature that generates a still image reflecting a moment from the conversation. Custom AI image generation and webtoon-style content tools are also available.

PolyBuzz is free to start, with unlimited text chats on a standard AI model, though the free tier shows periodic ads and keeps a shorter conversation memory. Paid membership tiers, priced roughly between $9.90 and $29.90 a month, remove ads and add stronger AI models, longer memory, extended voice chat, faster responses, and more image-generation attempts; the platform also sells optional coin bundles for extending voice calls or unlocking specific interactions. PolyBuzz states that conversations are confidential and not accessible to character creators or its own staff unless a user chooses to share them, and it runs a dedicated Teen Mode alongside AI and human moderation to restrict public NSFW content. It's available through a web browser or iOS and Android apps, aimed at roleplay fans, anime followers, and creative writers seeking a customizable AI companion.

Piktochart is a visual content platform covering infographics, banners, brochures, cards, diagrams, flowcharts, graphs, invitations, maps, pitch decks, reports, resumes, social graphics, timelines and Venn diagrams, with AI generators for each and video tools including a screen recorder and video to text conversion.

Organising the product as a list of named makers rather than as a general canvas is the decision that determines who can use it. Someone who needs a flyer is not looking for a design tool, they are looking for a flyer, and presenting a flyer maker rather than a blank artboard removes the step where a non designer discovers they do not know what size to make it or where to begin.

Adding an AI generator alongside each maker extends that logic one stage further. The template still requires the user to choose one and fill it in; generation from a description skips even that, which matters for the person producing one flyer a quarter and not developing any skill in between.

The pricing is notably low for a business tool, which places it clearly against the individual and small organisation rather than the marketing department with a designer on staff. At that price the comparison is not with other software, it is with the hour a person would otherwise spend fighting a word processor.

VistaCreate produces flyers, posters, business cards, logos, certificates, invitations, letterheads, ebooks, newsletters, presentations, planners and animations, with formats sized for Instagram posts and stories, Facebook covers, YouTube thumbnails, TikTok videos, Twitch banners and display advertising. A free starter plan covers one seat.

Belonging to Vista, the printing business, is the structural fact that shapes it. A flyer designed here can be printed and delivered by the same company, which removes the export, upload and bleed-margin confusion that catches people who have never prepared a file for print. For a small business ordering five hundred flyers, that path matters more than any feature.

The format list weighted toward social platforms reflects where these designs actually go. A modern flyer exists mainly as an Instagram post and a story, with the printed version secondary, and sizing for each platform correctly is exactly the knowledge the target user lacks.

A free tier at one seat is a deliberate boundary. It covers the sole trader entirely and requires payment the moment a second person is involved, which is when a business can justify the cost. Drawing the line at collaboration rather than at features means the free tier is genuinely usable rather than a demonstration that stops working when it matters.

Janitor AI is a web-based platform for creating and chatting with custom AI characters. Users build chatbot personas with defined personalities, backstories, and appearances through a character creation panel, then converse with them in a chat interface that supports text streaming for a more natural back-and-forth feel. Conversations can run on Janitor AI's own built-in model, JanitorLLM, or on external language models that users connect using their own API key, commonly from providers offering OpenAI-compatible or open-source models. A public library of user-submitted characters is available to browse and chat with immediately, alongside tools such as scripts and lorebooks for building and publishing original characters, including support for custom CSS styling.

Because response quality and cost depend on the connected model, users can choose between free, lower-cost, or premium options based on their needs, and a Pro subscription is available for members who want higher message limits on the built-in model without managing external API keys. Janitor AI restricts access to users who are 18 or older, permanently bans accounts reasonably suspected of being underage, and applies extra age verification steps in certain regions. The platform provides adjustable content and safety settings that let each user set boundaries for their own conversations. Janitor AI is aimed at people interested in interactive storytelling, character roleplay, and companion-style chat rather than business or productivity use cases.

vidIQ is a YouTube growth platform that combines AI ideas, optimization and creator coaching in one product, delivered through a browser extension and a mobile app. Its stated mission is to empower every video creator with the insights and inspiration they need to grow, through an intelligent mix of technology and human expertise. The features page groups its tools by goal: more views through keyword research and a thumbnail maker, more subscribers through a script writer and channel audit, better packaging through title and description generators, and painless publishing through the extension, video clipping and a best time to post.

Competitive tools cover competitors, a scorecard, trend alerts, real-time stats and achievements, while idea discovery offers daily ideas, most viewed and outliers lists. An Optimize feature reviews every video on a channel, an AI Coach gives personalized guidance, and vidIQ MCP brings vidIQ data into Claude, ChatGPT and other MCP-compatible assistants. There is also vidIQ for Instagram, and the site cites 20k+ five-star reviews and creator testimonials from channels such as Think Media and Ali Abdaal.

The pricing page lists Free, Boost, Max and Enterprise plans. Free includes 150 AI credits a month, niche trends, content ideas and AI Coach growth tips, Boost adds 2,000 monthly AI credits with thumbnails, unlimited trends research and subscriber insights, and Max includes 6,000 credits with more AI Coach conversations and up to 11 hours of short clipping. Prices are shown in the visitor's local currency, so no figure is quoted here.

Snappa is an online graphic design tool for people who are not graphic designers, built to whip up graphics for social media, ads, blogs and more. Image dimensions for social media, display ads, blogs, emails and infographics are available as clickable presets, so the perfectly sized image is one click away, and thousands of pre-made professional templates mean no starting from a blank screen.

The library is a large part of the offer: more than 5,000,000 free, high-resolution stock photos, 200+ fonts and 100,000+ vectors and shapes, plus photo effects, with no need to scour multiple stock libraries, worry about usage rights or pay for the best background images. A one-click background remover makes backgrounds vanish, and resizing lets a Twitter header become a Facebook cover, an Instagram post a Pinterest pin or a Facebook ad a billboard ad in one click, so a graphic never has to be made more than once.

Pricing is published by plan. The free plan allows 3 downloads a month, Pro is $15 a month, or $10 a month billed yearly, for one user with 6,000+ templates, and Team is $30 a month, or $20 billed yearly, for five users, adding features such as custom font uploads, background removal and social media integrations. Snappa is built for speed of creation rather than design expertise.

Rytr is an AI writing assistant covering more than 40 content use cases across long form content and search optimisation, creative writing, marketing copy, personal and professional writing, automatic editing and AI autocomplete. Song lyrics sit among its creative writing templates. The vendor reports more than 8,000,000 users and publishes a free tier.

Selling templates rather than a blank chat box is the design decision that matters, and it reflects what most people actually struggle with. Given an empty prompt, a user has to work out how to ask, and the quality of what comes back depends entirely on that. A template for song lyrics already knows to ask about theme, mood and structure, which is the difference between a usable draft and a generic one.

The pricing is aggressive to the point of being the product's main argument. An unlimited generation tier at 7.50 dollars a month on annual billing undercuts nearly every dedicated tool in any single category it covers, which is the trade a buyer is making: broad and cheap rather than deep in one format.

Continue Ryting, which extends text you have already started, suits creative work better than full generation, since a lyricist usually has a line and is stuck on the next one.

Eraser generates production-ready technical diagrams from AI prompts, aimed at architecture and process teams, DevOps, technology consultants and software engineers. It provides DiagramGPT, a free diagram maker, a Git diagrammer, markdown notes, and integrations with GitHub, Notion, Confluence and VS Code, plus agent integrations and an MCP client catalogue.

Targeting engineers rather than general business users is what shapes the product, and the consequence is that diagrams are treated as artefacts that live beside code. A software architecture diagram is wrong within weeks of being drawn, and the only diagrams that stay accurate are the ones stored where the code is, reviewed when the code changes, and editable by the person making the change rather than by whoever owns the drawing tool.

The Git diagrammer follows that reasoning to its conclusion, generating diagrams from the repository itself rather than from someone's recollection of it.

Publishing an MCP client catalogue and agent integrations positions this for a workflow where the diagram is generated by an assistant reading the codebase, which is the natural end point of everything else the product does. A diagram nobody had to draw is the only kind that stays current, because the cost of regenerating it falls to nearly nothing.

Mermaid Chart is an AI-assisted diagramming tool built on the open-source Mermaid project. Its pitch is that people already think in systems and can now diagram them just as fast: prompt inside the canvas, drop in a document or write it in code and watch the diagram build. It says it is trusted by over 5M people, and that every diagram made keeps Mermaid's open-source roots growing, with the GitHub project showing over 90,000 stars.

Mermaid AI goes from input to diagram before the thought is finished, whether the input is typed, spoken or uploaded as a document, and it suggests the shape that fits, such as a flowchart, timeline, requirement diagram or sequence diagram. A prompt inside the code panel or canvas changes the diagram in place, with no context-switching or syntax hunting. Starter prompts include planning a project, designing a system or a database, mapping a team, showing system interactions and modelling object structures.

Diagrams live where teams work: they can be rendered in an IDE, embedded in docs and wikis, or generated straight from Claude, VS Code and Cursor through the MCP server. Teams can co-edit live and share with one link, with no login required for viewers, and enterprise controls include secure access controls, trusted encryption, SOC 2 compliance and SSO that fits an existing setup. No pricing is published on the captured page.

TubeBuddy is an all-in-one YouTube optimization platform covering SEO and keyword discovery, content intelligence and analytics for creators who want more views and subscribers. The site calls it the #1 YouTube SEO and growth tool, says 10M+ creators worldwide trust it, and cites a 4.8 rating from 10K+ reviews and a G2 Top Rated 2025 badge. Its pitch on keywords is to find what your viewers are searching for so you can optimize for it and create content that connects.

The TubeBuddy tool menu is organized by job. SEO Tools include Keyword Explorer, SEO Studio and Click Magnet, and Content Strategy adds Channel Insights, Niche Leaderboard, Next Video Ideas, A/B Testing and Topical Analysis. Video and Thumbnail tools cover a Title Generator, Thumbnail Analyzer and Thumbnail Generator, and Productivity Tools include a Chapter Editor, End Screen Editor and Related Video Manager. Free tools such as a Revenue Calculator and Thumbnail Preview sit alongside a mobile app and a Chrome extension.

Pricing is published and starts low. Pro is $3.00 per month, or a one-time $32 for a year, and is described as smart tools to help new creators build momentum. Legend is $15.00 per month, or a one-time $144 for a year, and is described as everything you need to scale your content and monetize with confidence. A Pro long-term option at $49 lets buyers skip the subscription.