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📖 The AI Tool Bible

All AI tools

919 tools

Writesonic preview image
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Writesonic

Writing · Multi-model (OpenAI / Anthropic via API)
7.4

All-in-one AI writer with SEO research, articles, and chat.

Freemium· Free trial; from $20/mo IndividualSEO articlescontent marketing
Agent Lightning preview image
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Agent Lightning

Agents · Multi-model
7.3

Microsoft's open-source trainer that fine-tunes AI agents with RL and prompt optimization, framework-agnostic.

Free· Free, MIT-licensed open sourceagent-trainingreinforcement-learning
AgentMemory preview image
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AgentMemory

Agents · Multi-model (Claude, Gemini, MiniMax, OpenRouter)
7.3

Open-source persistent memory runtime for AI coding agents, with hybrid retrieval and zero external dependencies.

Free· Free, open-source (Apache 2.0); bring your own LLM API keyagent-memorycoding-agents
Agentset preview image
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Agentset

RAG · Multi-model (Claude, OpenAI, Google, xAI, Cohere, Mistral, DeepSeek)
7.3

Production-ready RAG infrastructure with agentic search, citations, and model-agnostic plumbing.

Freemium· Free: $0 · Pro: $49 · Enterprise: Customdocument-qaagentic-search
AstrBot preview image
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AstrBot

Agents · Multi-model (OpenAI, Anthropic, Gemini, DeepSeek, Ollama, Dify, Coze)
7.3

Open-source agentic AI assistant that bridges chat platforms like Telegram, Discord, and QQ with any LLM and a 1000+ plugin ecosystem.

Free· Free, open-source (AGPL-3.0); self-hosted, you pay your own LLM API costs.chatbotgroup-chat-assistant
Azure AI Speech (Neural TTS) preview image
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Azure AI Speech (Neural TTS)

Audio · Azure Neural TTS (plus HD and Azure OpenAI voices)
7.3

Microsoft's enterprise-grade neural text-to-speech with 100+ languages, custom brand voices, and SSML control.

Freemium· Free (F0): Free · Pay as You Go: Voice Live Prices: $- · Commitment Tiers – Standard: $- for 2,000 hourstext-to-speechvoice-cloning
Bifrost preview image
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Bifrost

Agents · Multi-model (OpenAI, Anthropic, Bedrock, Vertex, 1000+ via providers)
7.3

Open-source AI gateway that unifies 1000+ models behind one OpenAI-compatible endpoint with failover, budgets, and MCP routing.

Freemium· Free Forever: Free · Enterprise: Contact salesllm-gatewaymulti-provider-routing
CAI preview image
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CAI

Agents · Multi-model (incl. alias1, GPT, Claude, DeepSeek)
7.3

Open-source agent framework for offensive security, bug bounty automation, and AI-driven penetration testing.

Freemium· Open source free; CAI PRO ~EUR 350/mopenetration-testingbug-bounty
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CogVideoX

Video · CogVideoX / CogVideoX1.5 (diffusion transformer)
7.3

Open-source text-to-video and image-to-video diffusion transformer from Zhipu AI, runnable on consumer GPUs.

Free· Open-source weights; commercial API via bigmodel.cntext-to-videoimage-to-video
DeepSeek preview image
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DeepSeek

Coding · DeepSeek R1, V3, V2, Coder V2, VL
7.3

Chinese AI lab shipping open-weight reasoning models that punch well above their API price.

Freemium· deepseek-v4-flash: 0.02元 (缓存命中) / 1元 (缓存未命中) / 2元 (输出) · deepseek-v4-pro: 0.025元 (缓存命中) / 3元 (缓存未命中) / 6元 (输出)reasoningcode-generation
Dia preview image
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Dia

Audio · Dia-1.6B
7.3

Open-weights 1.6B text-to-dialogue model that generates ultra-realistic multi-speaker conversations in one pass.

Free· Free, open weights (Apache 2.0); hosted larger version waitlisteddialogue-generationvoice-cloning
Epsilla preview image
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Epsilla

RAG · Multi-model
7.3

Agent-as-a-Service platform with managed RAG and a no-code builder for vertical enterprise AI.

Freemium· Free Tier: $0/month · Starter Tier: $29/month · Professional Tier: $249/month · AI Concierge: $2,499/month · Enterprise Tier: Custom/monthenterprise-ragai-agents
FedML preview image
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FedML

Fine-tuning · Bring-your-own (PyTorch, Hugging Face)
7.3

Distributed training, fine-tuning, and serving platform with federated learning roots.

Freemium· Open-source library free; managed GPU usage pay-as-you-gofine-tuningdistributed-training
Gemini preview image
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Gemini

Writing · Gemini 2.x (Flash / Pro / Ultra)
7.3

Google's flagship multimodal AI assistant with deep integration into Workspace and Android.

Freemium· Free tier; Google One AI Premium $19.99/mo includes Gemini Advancedchat-assistantresearch
Gorilla preview image
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Gorilla

Agents · gorilla-openfunctions-v2 (6.91B)
7.3

Open-source LLM purpose-built for function calling and API invocation across thousands of tools.

Free· Free and Apache 2.0; self-hostedfunction-callingtool-use
Guizang PPT Skill preview image
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Guizang PPT Skill

Agents · Multi-model (Claude, Codex, GPT-Image)
7.3

Claude Code / Codex agent skill that generates single-file HTML slide decks in editorial-magazine or Swiss-design styles.

Free· Free, AGPL-3.0; requires a host AI agent (Claude Code, Codex, etc.)html-slide-deckspresentation-design
Kong AI Gateway preview image
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Kong AI Gateway

Agents · Multi-model
7.3

Enterprise API gateway extended to route, govern, and observe LLM and agent traffic across providers.

Freemium· Free trial: $0 · Plus: Charged per Gateway per month · Enterprise: Custom pricing · Essentials: $0 · Pro: $12llm-gatewaymulti-llm-routing
Kubeflow preview image
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Kubeflow

Agents · Multi-framework (PyTorch, JAX, XGBoost, TensorFlow)
7.3

Open-source toolkit for running the full ML lifecycle on Kubernetes.

Free· Free and open source; commercial distributions and managed offerings priced separately by vendorsml-pipelinesdistributed-training
Langfuse preview image
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Langfuse

Evaluation · Model-agnostic
7.3

Open-source LLM observability, prompt management, and evaluation in one platform.

Freemium· Free self-host & Hobby tier; Core $29/mo, Pro $199/mo, Enterprise $2,499/mollm-observabilityprompt-management
MathEval preview image
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MathEval

Evaluation · GPT-4 grader / DeepSeek-LLM-7B verifier
7.3

Holistic benchmark suite for evaluating mathematical reasoning in large language models.

Free· Free; open-source benchmark with leaderboard submissions via matheval.aillm-math-benchmarkingmodel-leaderboards
MMagic preview image
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MMagic

Image Generation · Multi-model (Stable Diffusion, ControlNet, StyleGAN, GANs, diffusion)
7.3

OpenMMLab's research-grade toolbox for image and video generation, restoration, and editing.

Free· Free and open source (Apache 2.0)text-to-imagesuper-resolution
omp (Oh My Pi) preview image
omp (Oh My Pi) logo

omp (Oh My Pi)

Coding · Multi-model (Claude, OpenAI, others)
7.3

Open-source terminal coding agent with LSP, DAP, subagents, and a native Rust execution engine.

Free· MIT open source; bring your own LLM API keyterminal-coding-agentrefactoring
OpenBB preview image
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OpenBB

Agents · Multi-model (Agent Rita is model-agnostic)
7.3

Open-source financial workspace where analysts and AI agents share the same governed data.

Freemium· Community: Free · Lite: $100 · Pro: Custom pricing · Snowflake: $41.67financial-researchinvestment-workflows
OpenRouter preview image
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OpenRouter

Coding · Multi-model
7.3

Unified API gateway to 400+ LLMs from 70+ providers, with one OpenAI-compatible endpoint and automatic failover.

Freemium· Pay-as-you-go credits; sample packs $10 and $99; some free-tier models availablellm-routingmulti-model-access