AI Tools the Stack Builder Picks
The 145 AI models, agents and AI-powered tools the stack builder's rules can pick. Each page has its plans and prices, checked by hand against the maker's own page, and the rule steps that pick it. Every price that moves is in the changelog, week by week, with the page it was read on.
AI models and agents
- Ante — An open-source coding agent in one small binary that works in your terminal with the model you pick, cloud or local. Free plan; checked October 7, 2026.
- Augment Code — A context-engine coding agent for large codebases. From $20/mo; checked October 9, 2026.
- Cartesia — Fast streaming text-to-speech with a web playground and API. Free plan; checked October 9, 2026.
- ChatGPT — OpenAI's assistant for writing, research and everyday questions. Free plan; checked October 15, 2026.
- Claude — Anthropic's assistant for writing, analysis and long documents. Free plan; checked October 19, 2026.
- Claude Code — Anthropic's coding agent that works in your terminal and editor. From $20/mo; checked October 8, 2026.
- Cursor — Code editor with an AI agent that edits your whole project. Free plan; checked October 8, 2026.
- Devin — Cognition’s cloud coding agent, with the Windsurf IDE on the desktop. Free plan; checked October 9, 2026.
- Gemini — Google's assistant, tied into Gmail, Docs and Search. Free plan; checked October 8, 2026.
- GitHub Copilot — AI coding help inside your editor and on GitHub. Free plan; checked October 6, 2026.
- Kiro — AWS’s spec-driven agentic IDE. Free plan; checked October 9, 2026.
- OpenAI Codex — OpenAI's coding agent, in ChatGPT and the terminal. Free plan; checked October 6, 2026.
- Perplexity — Answers questions by searching the web and citing its sources, with deep research reports. Free plan; checked October 10, 2026.
- Resemble AI — Voice cloning with watermarking and deepfake detection. Free plan; checked October 9, 2026.
AI-powered tools
- 10Web — Makes a WordPress website from a one-line prompt and hosts it on its own managed WordPress hosting. From $20/mo, or $10/mo billed yearly; checked October 8, 2026.
- a0.dev — Builds mobile apps from a prompt, with store publishing. From $20/mo; checked October 9, 2026.
- ActiveCampaign — Email marketing and automation with an AI automation builder. From $15/mo; checked October 9, 2026.
- AdCreative.ai — Generates ad images and copy sized for each ad network. From $39/mo; checked October 6, 2026.
- Adobe Express — Quick graphics, short videos and social posts from templates. Free plan; checked October 7, 2026.
- Adobe Photoshop — Photo editing with Generative Fill and Expand. From $22.99/mo; checked October 15, 2026.
- Adobe Premiere — The industry video editor, with generative extend and AI captions. From $22.99/mo; checked October 9, 2026.
- Alitu — Records, cleans and edits podcast episodes, with hosting included. From $38/mo, or $32/mo billed yearly; checked October 9, 2026.
- AnthemScore — Finds the notes, beats and instruments in a recording and writes editable sheet music, tabs, MusicXML and MIDI. From $39 once; checked October 6, 2026.
- Anyword — Writes ad copy and predicts how each variant will perform. From $49/mo; checked October 7, 2026.
- AudioShake Indie — Separates a track into stems or an instrumental for artists, labels and producers, billed per stem. From $20/mo; checked October 8, 2026.
- Auphonic — Cleans and levels podcast audio automatically, priced by the hour. Free plan; checked October 9, 2026.
- BandLab Mastering — Preset-based online mastering inside BandLab, with a stem splitter and audio to MIDI on the paid plan. Free plan; checked October 6, 2026.
- Base44 — Builds business and internal apps with data and permissions from a prompt. Free plan; checked October 9, 2026.
- Basic Pitch — Spotify’s free, open-source converter from a single-instrument or vocal recording to MIDI. Free plan; checked October 6, 2026.
- Beautiful.ai — Builds slide decks that lay themselves out, with AI drafting. From $45/mo, or $14.50/mo billed yearly; checked October 9, 2026.
- beehiiv — Newsletter platform with growth and ad tools built in. Free plan; checked October 9, 2026.
- Bolt.new — Builds and runs full-stack web apps in the browser from a prompt. Free plan; checked October 6, 2026.
- Botpress — Builds AI support agents with flows, knowledge bases and channels. Free plan; checked October 9, 2026.
- Brevo — Email, SMS and automations priced by emails sent. Free plan; checked October 6, 2026.
- Buffer — Schedules posts across your social accounts, with an AI assistant that drafts them. Free plan; checked October 9, 2026.
- Canva — Drag-and-drop design for social posts, slides and print. Free plan; checked October 7, 2026.
- CapCut — Mobile and desktop video editor with AI captions and effects. Free plan; checked October 19, 2026.
- Captions — Edits talking-head video: captions, eye contact, dubbing and AI actors. Free plan; checked October 9, 2026.
- Chatbase — Trains a support chatbot on your content and puts it on your site. Free plan; checked October 9, 2026.
- Clearscope — Grades a draft against what ranks and briefs the page. From $129/mo; checked October 9, 2026.
- Consensus — Searches peer-reviewed papers and answers with cited AI analysis. Free plan; checked October 10, 2026.
- ContentStudio — Finds content to share, writes posts with AI and schedules them. From $29/mo, or $19/mo billed yearly; checked October 8, 2026.
- Copy.ai — AI copy and email drafts for sales and marketing. From $29/mo; checked October 10, 2026.
- Creatify — Turns a product link into UGC-style video and image ads. Free plan; checked October 7, 2026.
- Crisp — Customer messaging inbox with live chat and an AI agent for replies. Free plan; checked October 9, 2026.
- D-ID — Turns a photo or avatar into a talking-head video from a script. Free plan; checked October 9, 2026.
- DaVinci Resolve — A full video editor with colour grading and audio; Studio adds AI tools, paid once. Free plan; checked October 9, 2026.
- Descript — Edits video and podcasts by editing the transcript. Free plan; checked October 6, 2026.
- Dorik — AI site generation with white label and code export. Free plan; checked October 9, 2026.
- Dubverse — Dubs videos into other languages with AI voices and subtitles. From $18/mo, or $9/mo billed yearly; checked October 9, 2026.
- Durable — Builds a small-business website from three questions, with a CRM, bookings and marketing agents in the same plan. Free plan; checked October 8, 2026.
- ElevenLabs — Lifelike AI voices and voiceovers in many languages, and sound effects made from a text description, paid from the same credits. Free plan; checked October 10, 2026.
- Elicit — Searches and summarises research papers, with a systematic review workflow. Free plan; checked October 9, 2026.
- eMastered — Cloud mastering with manual controls after the first pass. From $39/mo; checked October 9, 2026.
- Emergent — An agentic full-stack app builder with deployment. Free plan; checked October 9, 2026.
- Fadr — Splits a song into stems and pulls out MIDI, key, tempo and chords, with a stems plugin for studio programs. Free plan; checked October 15, 2026.
- Fathom — Records your video calls and writes the summary and action items. Free plan; checked October 9, 2026.
- Figma — Design tool for interfaces, sites and brand assets. Free plan; checked October 9, 2026.
- Fireflies — Joins your calls, transcribes them and writes the summary. Free plan; checked October 9, 2026.
- Framer — Designs and publishes fast, polished websites. Free plan; checked October 6, 2026.
- Frase — Researches the search results, builds briefs, writes and scores content. From $49/mo; checked October 7, 2026.
- Gamma — Turns a prompt into a slide deck, document or web page that lays itself out. Free plan; checked October 10, 2026.
- Gemini Notebook (NotebookLM) — Google's research notebook: answers grounded in the sources you add, with cited notes and Audio Overviews. Free plan; checked October 10, 2026.
- Grammarly — Checks and rewrites your writing as you type, anywhere. Free plan; checked October 10, 2026.
- Granola — Takes meeting notes on your computer from the audio, with no bot in the call. Free plan; checked October 9, 2026.
- HeyGen — AI avatar and translated videos from a script. Free plan; checked October 6, 2026.
- Higgsfield — One app over many video and image models, with camera-motion presets. From $49/mo, or $39/mo billed yearly; checked October 9, 2026.
- Hootsuite — Social scheduling, inbox and reports for teams. From $99/mo billed yearly; checked October 6, 2026.
- Hostinger Website Builder — A website builder whose AI mode makes a first site from a description, with hosting and a first-year domain included. From $11.99/mo; checked October 6, 2026.
- Hypefury — Writes and schedules creator posts with AI trained on your past posts. From $6/mo per channel; checked October 7, 2026.
- Ideogram — Makes images from text, good with lettering and logos. Free plan; checked October 8, 2026.
- InVideo AI — Makes a whole video from a text prompt, with AI clips, a timeline editor and shared editing. From $30/mo, or $15/mo billed yearly; checked October 10, 2026.
- iZotope Neutron 5 — A mixing plugin whose Mix Assistant listens to your tracks and sets starting levels, EQ and compression. From $55 once; checked October 8, 2026.
- iZotope Ozone — Mastering software whose Master Assistant listens to your mix and proposes a starting mastering chain; it finishes a mix, it does not write one. From $55 once; checked October 6, 2026.
- Jasper — AI copywriting for marketing teams, kept in a brand voice. From $69/mo; checked October 10, 2026.
- Julius AI — Chat with your data files: analysis, charts, reports and slides. Free plan; checked October 9, 2026.
- Kit — Email for creators: newsletters, forms and paid subscriptions. Free plan; checked October 7, 2026.
- Klangio — Turns recordings of piano, guitar, voice, drums and other instruments into sheet music, tabs and MIDI. Free plan; checked October 6, 2026.
- Klaviyo — Ecommerce email and SMS, with Klaviyo AI for subject lines and content. Free plan; checked October 9, 2026.
- Kling AI — Kuaishou’s video model: image-to-video and text-to-video by credits. Free plan; checked October 9, 2026.
- Krea — Makes and edits images, video and 3D with its own and other companies’ models, billed in compute units. Free plan; checked October 7, 2026.
- Krotos Studio — Builds sound effects, Foley and ambiences from studio recordings, and can match effects to your video footage. From $19.99/mo, or $9.99/mo billed yearly; checked October 9, 2026.
- LALAL.AI — Splits an audio file into vocals, drums, bass, piano, guitar and other stems. Free plan; checked October 19, 2026.
- LANDR — Masters a finished mix automatically and sends your songs to streaming services; it does not write or arrange music. From $8.25/mo billed yearly only ($99 a year); checked October 6, 2026.
- Later — Visual planner and scheduler for Instagram, TikTok and more. From $25/mo, or $18.75/mo billed yearly; checked October 15, 2026.
- Leonardo.Ai — AI images and video, with style controls. Free plan; checked October 15, 2026.
- Loom — Records your screen and camera into a shareable video, with AI titles, summaries and silence removal. Free plan; checked October 10, 2026.
- Lovable — Builds a working web app from a description, then lets you edit it. Free plan; checked October 8, 2026.
- LTX Studio — A storyboard-to-film pipeline on Lightricks’ LTX video models. Free plan; checked October 9, 2026.
- Luma Dream Machine — Luma’s Ray video models and image generation in one app. From $30/mo, or $25/mo billed yearly; checked October 9, 2026.
- MailerLite — Email newsletters and automations with an AI writing assistant. Free plan; checked October 9, 2026.
- Masterchannel — Genre-tuned cloud mastering. From $15/mo billed yearly only ($180 a year); checked October 9, 2026.
- Meshy — Turns text or an image into a 3D model. Free plan; checked October 7, 2026.
- Metricool — Schedules posts and reports social and ad results in one place. Free plan; checked October 6, 2026.
- Midjourney — Makes striking images from a text prompt. From $10/mo; checked October 7, 2026.
- Mixo — Builds a small-business website from a short description of the business, with a free plan that publishes on its own address. Free plan; checked October 8, 2026.
- Moises — Separates songs into up to 27 stem types and detects chords, with speed and pitch practice tools. Free plan; checked October 6, 2026.
- Murf AI — Turns typed text into narrated audio with a library of synthetic voices and a timeline editor for voiceovers. Free plan; checked October 6, 2026.
- NEURONwriter — Briefs and scores content against what ranks, and drafts it with AI. From $23/mo; checked October 8, 2026.
- Omnisend — Ecommerce email and SMS with Essential and Advanced AI. Free plan; checked October 9, 2026.
- Optimizer AI — Makes sound effects up to 60 seconds long from a text description, and variations of a recording you upload. From $10/mo, or $5/mo billed yearly; checked October 6, 2026.
- OpusClip — Cuts long videos into short clips for social. Free plan; checked October 8, 2026.
- Otter.ai — Records and transcribes meetings, with AI summaries and action items. Free plan; checked October 9, 2026.
- Palmier Pro — A Mac video editor with AI video and image generation built in, where Claude, Codex or Cursor can edit on the timeline. Free plan; checked October 8, 2026.
- Pencil — Generates ad copy, images and video ads, then launches and tracks them. From $14/mo; checked October 7, 2026.
- Pika — Short-form video effects, lip-sync and clips from text or images. Free plan; checked October 9, 2026.
- Predis.ai — Makes ad creatives, video ads and social posts from a prompt, and schedules them. From $32/mo; checked October 7, 2026.
- Presentations.AI — Turns a prompt or a document into a slide deck you can export. Free plan; checked October 9, 2026.
- Quadratic — A spreadsheet where AI writes the formulas, Python and SQL. Free plan; checked October 9, 2026.
- QuillBot — Paraphrases, checks grammar and tone, and summarises, in the browser, Word and on your phone. Free plan; checked October 19, 2026.
- Rank Math Content AI — Keyword research, SEO writing and on-page fixes inside the WordPress editor. Free plan; checked October 7, 2026.
- Rask AI — Translates and dubs videos into other languages with cloned voices. Free plan; checked October 9, 2026.
- Replit — Online coding workspace with an AI agent that builds and deploys apps. From $20/mo; checked October 6, 2026.
- RipX DAW — A desktop editor that separates audio into stems and single notes you can edit and export. From $99 once; checked October 6, 2026.
- Riverside — Records remote podcasts in separate tracks, with AI editing. Free plan; checked October 9, 2026.
- Rodin — Makes textured 3D models from a text prompt or one or more images. From $30/mo, or $24/mo billed yearly; checked October 8, 2026.
- RoEx Automix — Takes your multitrack stems and returns an automatic mix and master. Free plan; checked October 6, 2026.
- Rork — Builds native mobile apps from a prompt and publishes them to the stores. Free plan; checked October 9, 2026.
- Rows — A spreadsheet with AI tasks and live data integrations. Free plan; checked October 9, 2026.
- Runway — Generates and edits video clips from text or images. Free plan; checked October 6, 2026.
- Scalenut — Clusters keywords, briefs and writes long-form SEO articles. From $59/mo; checked October 7, 2026.
- Scenario — Trains image models on your game's art style for consistent assets. Free plan; checked October 10, 2026.
- Scite — Finds papers and shows whether later work supports or contrasts them. From $20/mo billed yearly only ($240 a year); checked October 9, 2026.
- ScoreCloud — A notation app that turns played or sung audio and MIDI into notation and lead sheets. Free plan; checked October 6, 2026.
- Semrush Content Toolkit — Topic ideas from Semrush data, SEO briefs and AI articles. From $60/mo; checked October 8, 2026.
- Sloyd — Makes game-ready 3D models from text or images, with plugins for Unity, Unreal and Blender. Free plan; checked October 6, 2026.
- SocialBee — Plans posts by category, writes them with an AI copilot and schedules them. From $29/mo; checked October 7, 2026.
- Softgen — Builds web apps from a prompt, with model choice and export. From $25/mo; checked October 9, 2026.
- Speechify Studio — An online studio that makes voiceovers and dubbing from text with synthetic voices. Free plan; checked October 6, 2026.
- Sprout Social — Team publishing, listening and reporting with AI Assist. From $99/mo, or $79/mo billed yearly; checked October 9, 2026.
- Submagic — Captions, b-roll, zooms and trims for short-form video. From $19/mo, or $12/mo billed yearly; checked October 9, 2026.
- Surfer — AI-assisted writing that targets a search keyword. From $59/mo, or $49/mo billed yearly; checked October 9, 2026.
- Synthesia — Makes presenter videos with AI avatars from a script. Free plan; checked October 6, 2026.
- Tidio — Live chat and help desk for small stores, with Lyro, an AI agent that answers common questions. Free plan; checked October 10, 2026.
- Tripo — Generates 3D models from text or images. Free plan; checked October 7, 2026.
- Typecast — Character voices for explainers and animation. Free plan; checked October 10, 2026.
- v0 — Vercel's AI builder for web interfaces and apps. Free plan; checked October 6, 2026.
- VEED — Online video editor with auto subtitles, translation, AI avatars and clip generation in one place. Free plan; checked October 10, 2026.
- Vizard — Cuts long videos into short clips with a virality score. Free plan; checked October 9, 2026.
- Waves Online Mastering — Per-track cloud mastering with style options. From $5.97/mo billed yearly only ($71.64 a year); checked October 15, 2026.
- Webflow — Visual website builder with a full CMS. Free plan; checked October 6, 2026.
- WellSaid — Makes voiceover audio from text with a set of synthetic voices, priced by the minutes you download. Free plan; checked October 9, 2026.
- Wix — A hosted website builder whose AI builder makes a site from a text prompt that you then edit; free plan on a Wix address. Free plan; checked October 15, 2026.
- Wondershare Filmora — An approachable video editor with AI tools metered by credits. From $5/mo billed yearly only ($59.99 a year); checked October 9, 2026.
- Writesonic — AI articles and tracking of how AI search mentions you. From $99/mo; checked October 6, 2026.