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📖 The AI Tool Bible

AI tools tagged For Developers

48 tools matching this tag.audience

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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
EL

ElevenLabs

Featured
Audio · ElevenLabs Multilingual v2
9.4

The gold standard for AI voice cloning and TTS.

Freemium· Free: $0 · Starter: $6 · Creator: $11 · Pro: $99 · Scale: $299TTSvoice cloning
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
BR

Braintrust

Featured
Evaluation · Platform (any LLM)
8.9

Eval, monitor, and improve AI products end-to-end.

Freemium· Starter: $0 · Pro: $249 · Enterprise: Custom pricingevalsmonitoring
LA

LangGraph

Featured
Agents · BYO (Claude / GPT / open)
8.8

Stateful, graph-based agent orchestration from LangChain.

Freemium· Developer: $0 / seat · Plus: $39 / seat · Enterprise: Custom pricingstateful agentshuman-in-loop
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
LL

LlamaIndex

Featured
RAG · BYO (Claude / GPT / open)
8.7

Data framework for connecting LLMs to your data.

Freemium· Free open-source; LlamaCloud paidRAGdata ingestion
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
CR

CrewAI

Featured
Agents · BYO (Claude / GPT / open)
8.4

Python framework for multi-agent orchestration.

Freemium· Basic: Free · Enterprise: Custommulti-agentorchestration
SD

Stable Diffusion

Image Generation · SD 3.5 / SDXL
8.8

Open-source image generation — run anywhere, fine-tune anything.

Free· Free open weights; optional Stability APIlocalfine-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
AS

AssemblyAI

Audio · Universal / Slam-1
8.7

Speech-to-text API with diarisation, summarisation, and topic detection.

Freemium· Pre-recorded Speech-to-Text API: $0.21 /hr · Universal-2: $0.15 /hr · Realtime Speech-to-Text API: $0.45 /hr · Universal-Streaming: $0.15 /hr · Universal-Streaming Multilingual: $0.15 /hrtranscriptiondiarisation
CL

Cline

Coding · Model-agnostic: Claude (Anthropic), GPT (OpenAI), Gemini (Google), DeepSeek, Grok, Mistral, Cerebras, plus local Ollama/LM Studio
8.7

Open-source agentic coding assistant that plans, edits, and runs code inside your IDE

Freemium· ClinePass: $9.99/monthMulti-file feature scaffoldingLarge-scale refactors
EV

Elasticsearch Vector Search

RAG · BYO embeddings (OpenAI, Cohere, Hugging Face, Mistral, Bedrock, Vertex, Azure) plus Elastic's built-in ELSER sparse model and E5 dense model
8.7

Hybrid vector + keyword search in the enterprise-grade Elasticsearch engine

Freemium· Resource based pricing: Pay as you go (monthly) or prepaid · Usage based pricing: Pay as you go (monthly) or prepaid · License based pricing: ?RAG chatbot over enterprise docsHybrid semantic + keyword product search
LA

LangSmith

Evaluation · Platform (any LLM)
8.7

LangChain's eval + observability platform.

Freemium· Developer: $0 · Plus: $39 · Enterprise: Custom pricingLLM tracingevals
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
CA

Claude Agent SDK

Agents · Claude Opus / Sonnet
8.6

Anthropic's official SDK for building autonomous Claude agents.

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

DataStax Astra DB

RAG · Bring-your-own embeddings; integrates with OpenAI, Cohere, Hugging Face, Mistral, NVIDIA NIM, and Vertex AI via server-side vectorize
8.6

Serverless vector and document database for production RAG and AI agents

Freemium· Small On-Demand: Contact sales · Medium (Balanced): Contact sales · Medium (Storage Optimized): Contact sales · Large (Balanced): Contact sales · Large (Storage Optimized): Contact salesRAG chatbot over enterprise documentsAgent long-term memory store
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
MA

MongoDB Atlas Vector Search

RAG · Bring-your-own embeddings (OpenAI, Cohere, open models); native Voyage AI embeddings and rerankers
8.6

Vector search built into the operational database you're already using.

Freemium· Free: $0 · Flex: Up to $30 · Dedicated: Starts at $56.94RAG over enterprise documentsProduct and content recommendation engines
WH

Whisper

Audio · Whisper large-v3
8.6

OpenAI's open-source speech-to-text — the de-facto baseline.

Free· Free open weights; $0.006/min via OpenAI APItranscriptionself-hosted
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
AS

Amp (Sourcegraph)

Coding · GPT-5.5, Claude Opus 4.8, GPT Image 2 (frontier multi-model)
8.4

Frontier coding agent from Sourcegraph with pass-through model pricing

Freemium· Basic: $10 · Pro: $20 · Enterprise: Contact salesMulti-file refactors across large repositoriesAgentic code generation with subagent parallelism
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
QU

Quivr

RAG · Multi-model (OpenAI, Anthropic, Mistral, Gemma)
8.4

Open-source RAG framework for building custom AI assistants over your own documents in a few lines of Python.

Free· Open source (pip install quivr-core); pay only for LLM/vector-store usagedocument-qacustom-knowledge-base
SC

ScrapeGraphAI

Agents · Multi-model (LLM, unspecified)
8.4

LLM-driven web scraping API that turns natural-language prompts into structured JSON.

Freemium· Free 500 credits; Starter $20/mo, Growth $100/mo, Pro $500/mo, Enterprise customweb-scrapingdata-extraction
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
WB

Weights & Biases

Evaluation · Platform (any LLM)
8.4

The ML experiment tracker, now with LLM eval features.

Freemium· Free: $0/mo · Pro: Starts at $60/month · Enterprise: Custom plans · Personal: $0/mo · Advanced Enterprise: Custom planML experimentsLLM eval
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
ZE

Zed

Coding · Claude (Sonnet/Opus), GPT-4o/5, Gemini, Ollama-hosted local models, and Zed's own Zeta2 open-weight edit-prediction model
8.4

A high-performance, multiplayer code editor built in Rust with native AI agent workflows.

Freemium· Personal: $0 · Pro: $10 · Business: $30AI pair-programming with Claude or GPT agentsInline code refactoring via natural-language prompts
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
HE

Helicone

Evaluation · Platform (any LLM)
8.3

Open-source LLM observability — one-line proxy install.

Freemium· Free 100k req/mo; Pro from $25/moobservabilitycost tracking
LA

LangChain

RAG · BYO (any major LLM)
8.3

The broad LLM application framework — chains, agents, retrievers.

Freemium· Free open-source; LangSmith paidgeneral LLM appsRAG
LL

Llama

Fine-tuning · Llama 4 (Maverick, Scout), Llama 3.3/3.2/3.1
8.3

Meta's open-weight LLM family covering 1B mobile models up to 405B frontier and natively multimodal 10M-context Llama 4 variants.

Freemium· Basic: $15 · Pro: $30 · Enterprise: $100self-hosted-llmfine-tuning
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
N8

n8n

Agents · Multi-model
8.3

Source-available workflow automation with first-class AI-agent and RAG building blocks.

Freemium· Starter: 20€ · Pro: 50€ · Business: 667€ · Enterprise: Contact Salesai-agentsworkflow-automation
QW

Qwen

Writing · Qwen3 / Qwen-Image / Qwen-MT / Qwen3Guard
8.3

Alibaba's open-weight foundation model family covering chat, vision, image generation, translation, and safety classification.

Freemium· Open weights free; hosted API priced per-token via Alibaba Cloud DashScopechatreasoning
RU

RunPod

Fine-tuning · Bring-your-own (any open-weight or custom model)
8.3

On-demand GPU cloud and serverless inference platform built specifically for AI workloads.

Paid· Pod: $7.39/hr · Pod: $4.39/hr · Pod: $5.89/hr · Pod: $1.99/hr · Pod: $3.19/hrllm-fine-tuninggpu-rental
SK

Skyvern

Agents · Multi-model (OpenAI, Anthropic, Gemini, Ollama)
8.3

AI browser agent that automates web workflows from natural-language instructions, with CAPTCHA and 2FA handling built in.

Freemium· Free: $0/month · Hobby: $29/month · Pro: $149/month · Enterprise: Custom/monthbrowser-automationdata-extraction
VA

Vanna.ai

RAG · Multi-model (Anthropic, OpenAI, Gemini, Ollama)
8.3

Open-source text-to-SQL agent that learns your schema and writes queries against your real warehouse.

Freemium· Explorer: $50 · Team: $500 · Enterprise: Contact salestext-to-sqlnatural-language-bi
VL

vLLM

Fine-tuning · Multi-model (open-weight LLMs: Llama, Qwen, DeepSeek, Mistral, Gemma, Phi, etc.)
8.3

Open-source high-throughput inference engine for serving LLMs with PagedAttention and continuous batching.

Free· Free and open-source (Apache 2.0); self-hosted infrastructure costs applyllm-servingself-hosted-inference
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
AA

Arize AI

Evaluation · Multi-model
8.2

Enterprise observability and evaluation platform for LLM agents and generative AI applications.

Freemium· AX Free: Free · AX Pro: $50 · AX Enterprise: Customllm-observabilityagent-evaluation