📖 The AI Tool Bible

The comprehensive directory of AI tools

1,003 AI tools listed across 10 categories — a profile shows a "Source-checked" date only once its text has been checked against the vendor's own pages; the rest are machine-drafted and labelled. Covering writing, coding, image, video, audio, agents, RAG, fine-tuning, eval, and MCP servers. Filter, compare, and pick what actually works.

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AI assistants for drafting, editing, and long-form content.

Pair programmers, autocompletes, and agentic code editors.

Image Generation

Text-to-image models, editors, and creative pipelines.

Text-to-video, avatars, and AI video editors.

Voice cloning, music generation, speech-to-text.

Autonomous and orchestrated multi-step AI workers.

Retrieval-augmented generation, vector stores, indexers.

Train and host custom models on your own data.

Observability, prompt testing, and quality scoring.

Model Context Protocol servers exposing tools, resources, and prompts to AI agents.

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Open-source AI tools (326)Self-hosted AI tools (235)AI for engineers (166)AI custom chatbot builder (112)AI for content creators (103)AI personal assistant (93)AI knowledge base search (82)AI research assistant (82)

Featured comparisons

All comparisons →

Claude vs Cursor

Side-by-side comparison of two tools that list each other as alternatives.

Flux vs Midjourney

Side-by-side comparison of two tools that list each other as alternatives.

Codeium vs GitHub Copilot

Side-by-side comparison of two tools that list each other as alternatives.

ElevenLabs vs Resemble.ai

Side-by-side comparison of two tools that list each other as alternatives.

MongoDB Atlas Vector Search vs Pinecone

Side-by-side comparison of two tools that list each other as alternatives.

Chorus by ZoomInfo vs Gong

Side-by-side comparison of two tools that list each other as alternatives.

Free and open-source

Free AI tools (346)

Tools with a free plan or free tier in our pricing data, grouped by category.

Open-source AI tools (422)

Tools with a public repository, with the license, stars, and last push we recorded.

Recently link-checked

OpenAI Swarm

Agents · OpenAI models (designed for, but extensible)

Lightweight multi-agent orchestration in Python.

Free· Free / open-sourceeducationprototyping

checked Nov 15, 2026

Manus

Agents · Multi-model

Generalist agent for research, code, and web tasks.

Paid· Credit-based; tiers from $19/moresearchweb tasks

checked Nov 15, 2026

Devin

Agents · Multi-model (Claude / GPT configurable)

Devin is an autonomous software engineer.

Freemium· Free plan at $0; Pro plan at $20 per month; Max plan at $200 per month

checked Nov 15, 2026

Claude Agent SDK

Agents · Claude Opus / Sonnet

Anthropic's official SDK for building autonomous Claude agents.

Free· Free SDK; API usage billed at Claude ratesClaude agentstool use

checked Nov 15, 2026

TuneAI

RAG · YandexGPT (feedback), Yandex SpeechKit (speech-to-text)

Voice-based oral exam practice with rubric-grounded AI feedback

Freemium· Public pricing not disclosed on the site; account registration and login are available, suggesting a free tier or trial with paid options gated behind sign-up.University oral exam practiceViva voce rehearsal

checked Nov 15, 2026

Nyamuru Manga Name Studio

Writing · Model-agnostic (BYO LLM — prompts designed for ChatGPT, Claude, Gemini, or local models)

Open-source PWA for drafting manga storyboards (ネーム) with LLM-ready prompts and a structured OMNY data format.

Free· Free and open source (MIT License). No paid tiers; users bring their own LLM if they want to use the included AI prompts.Drafting manga storyboards (ネーム) from a prose scriptConverting light-novel scenes into structured panel layouts via an LLM

checked Nov 15, 2026

Editor's picks

All featured →

Claude

Writing · Claude Opus / Sonnet

Anthropic's flagship assistant for long-form writing, analysis, and coding.

Freemiumlong-form writingsummarization

Cursor

Coding · Claude / GPT (configurable)

Cursor is a coding agent for building ambitious software.

Freemium· Free plan at $0 per month; Plus plan at $8 per month; Premium plan at $30 per month; Super plan at $100 per month; Ultra plan at $200 per month; Teams plan at $30 or more per user per monthPlanning and building featuresReviewing changes

Midjourney

Image Generation · Midjourney v7

The gold standard for aesthetic AI image generation.

Paid· Basic: $10 · Standard: $30 · Pro: $60 · Mega: $120 (per month; 20% discount for annual billing, per Midjourney's plan comparison page)illustrationconcept art

GPT-4o

Writing · GPT-4o

OpenAI's multimodal flagship behind ChatGPT.

Freemium· Free tiergeneral writingsummarization

ElevenLabs

Audio · ElevenLabs Multilingual v2

AI voice generator and voice agents platform.

Freemium· Free plan: $0 per month; Starter plan: $1 for the first month, then $6 per month; Creator plan: $11 for the first month, then $22 per month; Scale plan: $299 per month; Business plan: $990 per monthText to SpeechVoice Cloning

Suno

Audio · Suno v4

Suno creates complete original songs with vocals, lyrics, and production from a text prompt.

Freemium· Free plan at $0/month; Pro plan at $8/month; Premier plan at $24/monthbeat makingbackground music

GitHub Copilot

Coding · GPT / Claude / OpenAI o-series (configurable)

GitHub Copilot is an AI coding agent that helps users write, understand, and ship software.

Freemium· Free plan at $0 USD; Pro plan at $10 USD per user per month; Pro+ plan at $39 USD per user per month; Max plan at $100 USD per user per monthexploring codebaseplanning projects

Runway

Intelligent tools for scaling content and teams.

Freemium· Free plan: $0/month; Standard plan: $12/month (billed annually) or $15/month; Pro plan: $28/month (billed annually) or $35/month; Max plan: $76/month (billed annually) or $95/monthVideo, image, and audio generation and editingAdvertising, VFX, and Gaming

How we work: scores come from an AI-assisted editorial rubric, not user ratings. Read our methodology and editorial policy.