AI Tools the Stack Builder Picks
The 63 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.
AI models and agents
- ChatGPT — OpenAI's assistant for writing, research and everyday questions. Free plan; checked October 6, 2026.
- Claude — Anthropic's assistant for writing, analysis and long documents. Free plan; checked October 6, 2026.
- Claude Code — Anthropic's coding agent that works in your terminal and editor. From $20/mo; checked October 6, 2026.
- Cursor — Code editor with an AI agent that edits your whole project. Free plan; checked October 6, 2026.
- Gemini — Google's assistant, tied into Gmail, Docs and Search. Free plan; checked October 6, 2026.
- GitHub Copilot — AI coding help inside your editor and on GitHub. Free plan; checked October 6, 2026.
- OpenAI Codex — OpenAI's coding agent, in ChatGPT and the terminal. Free plan; checked October 6, 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; checked October 6, 2026.
- AdCreative.ai — Generates ad images and copy sized for each ad network. From $39/mo; checked October 6, 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 6, 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.
- Basic Pitch — Spotify’s free, open-source converter from a single-instrument or vocal recording to MIDI. Free plan; checked October 6, 2026.
- Bolt.new — Builds and runs full-stack web apps in the browser from a prompt. Free plan; checked October 6, 2026.
- Buffer — Schedules posts across your social accounts, with an AI assistant that drafts them. Free plan; checked October 7, 2026.
- CapCut — Mobile and desktop video editor with AI captions and effects. Free plan; checked October 6, 2026.
- ContentStudio — Finds content to share, writes posts with AI and schedules them. From $29/mo; checked October 7, 2026.
- Creatify — Turns a product link into UGC-style video and image ads. Free plan; checked October 7, 2026.
- Descript — Edits video and podcasts by editing the transcript. Free plan; checked October 6, 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 6, 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 6, 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 6, 2026.
- Frase — Researches the search results, builds briefs, writes and scores content. From $49/mo; checked October 7, 2026.
- Grammarly — Checks and rewrites your writing as you type, anywhere. Free plan; 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 6, 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 6, 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.
- Klangio — Turns recordings of piano, guitar, voice, drums and other instruments into sheet music, tabs and MIDI. Free plan; checked October 6, 2026.
- Krea — Makes and edits images, video and 3D with its own and other companies’ models, billed in compute units. Free plan; checked October 6, 2026.
- Krotos Studio — Builds sound effects, Foley and ambiences from studio recordings, and can match effects to your video footage. From $19.99/mo; checked October 6, 2026.
- LALAL.AI — Splits an audio file into vocals, drums, bass, piano, guitar and other stems. Free plan; checked October 6, 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; checked October 6, 2026.
- Leonardo.Ai — AI images and game art, with style controls. Free plan; checked October 6, 2026.
- Lovable — Builds a working web app from a description, then lets you edit it. Free plan; checked October 6, 2026.
- Meshy — Turns text or an image into a 3D model. Free plan; checked October 6, 2026.
- Midjourney — Makes striking images from a text prompt. From $10/mo; checked October 6, 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 6, 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 7, 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; checked October 6, 2026.
- OpusClip — Cuts long videos into short clips for social. Free plan; checked October 6, 2026.
- Pencil — Generates ad copy, images and video ads, then launches and tracks them. From $14/mo; checked October 7, 2026.
- Predis.ai — Makes ad creatives, video ads and social posts from a prompt, and schedules them. From $32/mo; checked October 7, 2026.
- Rank Math Content AI — Keyword research, SEO writing and on-page fixes inside the WordPress editor. Free plan; checked October 7, 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.
- Rodin — Makes textured 3D models from a text prompt or one or more images. From $30/mo; 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 6, 2026.
- Semrush Content Toolkit — Topic ideas from Semrush data, SEO briefs and AI articles. From $60/mo; checked October 7, 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.
- Speechify Studio — An online studio that makes voiceovers and dubbing from text with synthetic voices. Free plan; checked October 6, 2026.
- Surfer — AI-assisted writing that targets a search keyword. From $59/mo; checked October 6, 2026.
- Tripo — Generates 3D models from text or images. Free plan; checked October 6, 2026.
- v0 — Vercel's AI builder for web interfaces and apps. 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 6, 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 6, 2026.
- Writesonic — AI articles and tracking of how AI search mentions you. From $99/mo; checked October 6, 2026.