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📖 The AI Tool Bible

AI for engineers

Editorial picks for "ai for engineers".

48 tools

CU

Cursor

Featured
Coding · Claude / GPT (configurable)
9.5

AI-first VS Code fork — chat, edit, and agentic coding in one IDE.

Freemium· Hobby: Free · Individual: $20 / mo. · Teams: $40 / user / mo. · Enterprise: Customcodingrefactors
GC

GitHub Copilot

Featured
Coding · GPT / Claude / OpenAI o-series (configurable)
9.1

The original AI pair programmer, now with chat and agents.

Paid· Free: $0 · Pro: $10 · Pro+: $39 · Max: $100autocompletechat
PI

Pinecone

Featured
RAG · Hosted vector DB (not an LLM)
8.8

Managed vector database for production-scale similarity search.

Freemium· Starter: Free · Builder: $20/month flat · Standard: $50/month min. usage · Enterprise: $500/month min. usagemanaged vector DBproduction RAG
RA

Replit Agent

Featured
Coding · Multi-model (Claude / GPT configurable)
8.7

Build & deploy a full app from a single prompt.

Freemium· Basic: $20 · Pro: $50 · Enterprise: Contact salesprototypesinternal tools
TA

Together AI

Featured
Fine-tuning · Llama / Mistral / Qwen / DeepSeek and others
8.6

Fine-tune & serve open-weight models (Llama, Mistral, DeepSeek).

Paid· Pay-per-token; fine-tuning per-tokenopen modelsfine-tuning
WA

Warp

Coding · Multi-model: OpenAI, Anthropic Claude, Amazon Bedrock, plus BYO via OpenRouter and LiteLLM
8.8

The agentic development environment, from the terminal up

Freemium· Free: $0/month · Build: $20/month · Max: $200/month · Business: $50/user /month · Enterprise: CustomAgentic debugging of failing builds and testsNatural-language shell command generation
MO

Modal

Fine-tuning · Infrastructure (any model you can host)
8.7

Serverless GPUs and infra for training & serving ML.

Freemium· $30/mo free credits; pay-as-you-go GPU ratesserverless GPUfine-tuning
AB

AWS Bedrock

Agents · Multi-model: Anthropic Claude, Meta Llama, Mistral, Cohere, AI21, Amazon Nova/Titan, DeepSeek, Stability, OpenAI GPT
8.6

Build and scale generative AI applications with foundation models

Paid· Standard: Contact sales · Flex: Contact sales · Priority: Contact sales · Reserved: Contact salesEnterprise RAG chatbot over private documentsMulti-step tool-using agents via AgentCore
GV

Google Vertex AI

Agents · Gemini 2.5 (Pro/Flash/Nano), Imagen, Veo, Chirp, plus Model Garden (Llama, Mistral, Claude via partner)
8.6

Google Cloud's unified platform for building, deploying, and scaling enterprise AI agents and models.

Paid· Image Data - Training (Classification): $3.465 / 1 hour · Image Data - Training (Object Detection): $3.465 / 1 hour · Image Data - Deployment and Online Prediction: $1.375 / 1 hour · Image Data - Batch Prediction: $2.222 / 1 hour · Tabular Data - Training (Classification/Regression): $21.252 / 1 hourEnterprise RAG chatbotMulti-agent customer service
RE

Replicate

Fine-tuning · Thousands of community + first-party models
8.5

One-API platform for running and fine-tuning open-source models.

Paid· Pay-per-second of GPU timemodel hostingfine-tuning
AI

Aider

Coding · BYO (Claude / GPT-4 / Gemini / DeepSeek)
8.4

Terminal-based AI pair programmer that writes commits.

Free· Free / open-source; you pay the underlying LLM API costsCLIgit workflow
OF

OpenAI Fine-tuning

Fine-tuning · GPT-4o-mini / GPT-3.5
8.4

Fine-tune GPT-4o-mini and friends on your own data.

Paid· Basic: $10 · Pro: $25 · Enterprise: Contact salesstyleformat
PY

PyCaret

Coding · Multi-model (scikit-learn, XGBoost, LightGBM, CatBoost)
8.4

Low-code Python AutoML library that wraps scikit-learn, XGBoost, LightGBM and friends behind a few-line API.

Free· Free and open-source (MIT license)automlclassification
SK

Semantic Kernel

Agents · Multi-model
8.4

Microsoft's open-source SDK for wiring LLMs, plugins, and agents into enterprise .NET, Python, and Java apps.

Free· Free, MIT-licensed SDK; you pay for the underlying model APIsagent-orchestrationllm-plugins
WE

Weaviate

RAG · Hosted vector DB (not an LLM)
8.4

Open-source vector DB with hybrid search and modules.

Freemium· Free: $0 · Flex: $45 · Premium: $400self-hosted RAGhybrid search
Y0

Yi (01.AI)

Agents · Yi-Lightning (MoE), Yi-Large, Yi-1.5 (6B/9B/34B), Yi-VL, Yi-Coder — in-house 01.AI foundation models
8.4

Foundation models from 01.AI — open-weight Yi family plus frontier Yi-Lightning and Yi-Large

Freemium· Open-source Yi models free under permissive license; hosted API via platform.lingyiwanwu.com with pay-per-token pricing (Yi-Lightning positioned as a low-cost frontier tier; Yi-Large priced higher; exact per-token rates on the platform dashboard). Enterprise custom-training and consulting on quote.Self-hosted coding assistantBilingual English-Chinese chatbot
CO

Codeium

Coding · Proprietary + frontier models in Windsurf
8.3

Free, fast AI autocomplete + chat across 70+ editors.

Freemium· Free; Pro $15/mo; Teams $35/moautocompletechat
FL

Flyte

Agents · Multi-model
8.3

Open-source Python-native orchestration platform for AI, ML, and data workflows at production scale.

Freemium· OSS free; Union.ai commercial tier for enterpriseml-pipelinesagent-orchestration
L3

Llama 3

Writing · Llama 3 / 3.1 (8B, 70B, 405B)
8.3

Meta's open-weights LLM family that put serious frontier-adjacent models in everyone's hands.

Free· Weights free under Meta Llama Community License; inference cost via self-hosting or 3rd-party providerschatlong-context reasoning
LS

LM Studio

Agents · Multi-model (gpt-oss, Qwen3, Gemma, DeepSeek-R1, Llama, others)
8.3

Desktop app for discovering, downloading, and running open-weight LLMs locally with an OpenAI-compatible server.

Freemium· Free: $0local-llm-inferenceprivate-chat
AG

AgentOps

Agents · Multi-model
8.2

Observability and debugging platform purpose-built for AI agents, with time-travel replay and cost tracking across 400+ LLMs.

Freemium· Free up to 5,000 events; Pro from $40/mo; Enterprise customagent-observabilityllm-tracing
CO

CoreWeave

Fine-tuning · DeepSeek
8.2

AI-native GPU cloud built for large-scale training, fine-tuning, and inference on NVIDIA hardware.

Enterprise· NVIDIA GB300 NVL72: Contact sales · NVIDIA GB200 NVL72: $42.00 · NVIDIA HGX B300: Contact sales · NVIDIA HGX B200: $68.80 · NVIDIA RTX PRO 6000 Blackwell Server Edition: $20.00model-trainingfine-tuning
GA

Google AI Studio

Coding · Gemini 2.5 Pro / Flash, Imagen, Veo
8.2

Browser-based playground and API console for prototyping with Google's Gemini models.

Freemium· Free tier with rate limits; paid via Gemini API usage-based pricingprompt-prototypinggemini-api-keys
LA

LanceDB

RAG
8.2

Open-source multimodal lakehouse and vector database built for AI training and retrieval at petabyte scale.

Freemium· Open-source free; LanceDB Cloud and Enterprise via contact salesvector-searchrag
OP

OpenAI Playground

Writing · Multi-model (GPT-4o, GPT-4.1, o-series, DALL-E, Whisper, TTS)
8.2

OpenAI's official browser sandbox for prompting, tuning, and testing every model on the platform before you ship API code.

Paid· Basic: $10 · Pro: $20 · Enterprise: Contact salesprompt-engineeringmodel-comparison
VE

Vespa

RAG · Hosted search engine (not an LLM)
8.2

Yahoo's open-source search engine with vector + sparse retrieval.

Freemium· Free open-source; Vespa Cloud paidlarge-scale searchranking
CH

Chroma

RAG · Hosted vector DB (not an LLM)
8.1

Embedded, developer-friendly vector store for Python.

Freemium· Starter: $0 · Team: $250 · Enterprise: Customprototypingembedded RAG
LA

Langflow

Agents · Multi-model
8.1

Open-source visual builder for LangChain-style AI agents and RAG pipelines.

Freemium· Open-source free; hosted free tier + paid enterprise via DataStaxagent-prototypingrag-pipelines
MA

Mastra

Agents · Multi-model (90+ providers)
8.1

Open-source TypeScript framework for building, deploying, and observing AI agents and workflows.

Freemium· Starter: $0 · Teams: $250 · Enterprise: Custom pricingai-agentsworkflow-orchestration
WI

Windsurf

Coding · SWE-1.6 Fast (plus Claude Agent, OpenCode via ACP)
8.1

AI-native IDE turned agent command center, now folded into Cognition's Devin lineup.

Freemium· Free; Pro $20/mo; Max $200/mo; Teams $80/mo + $40/seat; Enterprise customai-idecoding-agents
1P

16x Prompt

Coding · Multi-model (BYO key)
8.0

Desktop prompt-composer for AI coding that bundles repo context, diffs, and multi-model comparison.

Freemium· Free: 10 prompts/day; paid individual and team licensesprompt-engineeringai-pair-programming
CO

Cody

Coding · Claude / GPT / Mixtral (configurable)
8.0

Sourcegraph's AI coding assistant — codebase-aware via their search index.

Freemium· Free; Pro $9/mo; Enterprise customenterprisemonorepos
EI

Edge Impulse

Fine-tuning · Multi-model (TF Lite Micro, custom DSP blocks)
8.0

End-to-end platform for training and deploying ML models on microcontrollers, sensors, and other edge hardware.

Freemium· Developer: $0edge-aitinyml
FA

Fal.ai

Image Generation · Multi-model (Flux, Stable Diffusion, video/audio models)
8.0

Serverless GPU inference platform optimized for fast diffusion and generative media APIs.

Paid· Usage-based; serverless from ~$1.89/GPU-hour, per-output pricing on model APIstext-to-imagetext-to-video
OP

OpenHands

Agents · Multi-model (Claude, Gemini, GPT/Codex)
8.0

Open-source autonomous coding agent that plans, edits, and ships changes across real codebases.

Freemium· Open Source: Free · Individual: Free · Enterprise: Custom pricingautonomous-codingpr-review
PG

pgMagic

Coding · OpenAI (user-supplied API key)
8.0

Mac desktop client that lets you chat with your Postgres database in natural language using your own OpenAI key.

Paid· AU$22 one-time license; bring your own OpenAI API keynatural-language-to-sqlpostgres-client
AQ

Amazon Q

Coding · Multi-model (Amazon Bedrock)
7.9

AWS's enterprise AI assistant for developers, analysts, and knowledge workers, wired into your company data.

Freemium· Amazon Q Business Lite: $3 · Amazon Q Business Pro: $20 · Amazon Q Developer Free Tier: Free · Amazon Q Developer Pro Tier: ? · Amazon Q in QuickSight Author: $24code-generationenterprise-search
AN

Anyscale

Fine-tuning · Infrastructure (any model)
7.9

Ray-powered platform for training, serving, and scaling LLMs.

Paid· Enterprise / contact salesdistributed trainingRay
CO

Continue

Coding · BYO (any OpenAI-compatible API + Ollama for local)
7.9

Open-source, self-hostable VS Code/JetBrains AI assistant.

Free· Free / open-source; you pay model costsself-hostedopen source
DV

DVC

Coding
7.9

Git-style version control for datasets, ML models, and experiment pipelines.

Free· Free and open source; lakeFS Enterprise available for large-scale deploymentsdata-versioningml-experiment-tracking
DE

Devin

Agents · Multi-model (Claude / GPT configurable)
7.8

Cognition Labs' "autonomous software engineer" agent.

Paid· From $500/mo Coreautonomous codingticket resolution
LA

Lamini

Fine-tuning · Lamini (built on open base models)
7.7

Memory-tuning platform for grounding LLMs in your facts.

Paid· Enterprise / contact salesenterprise FTfactual recall
RA

RAPIDS

Coding
7.7

NVIDIA's open-source suite of GPU-accelerated drop-in replacements for pandas, scikit-learn, and NetworkX.

Free· Free and open sourcegpu-dataframesml-training
TA

Tabnine

Coding · Proprietary (Tabnine-trained, on-prem capable)
7.6

Privacy-focused AI autocomplete with on-prem options.

Paid· Tabnine Code Assistant: $39 · Tabnine Agentic Platform: $59enterpriseprivacy
BI

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
CA

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
GO

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
OO

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