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📖 The AI Tool Bible

AI tools tagged Oss License Apache

24 tools matching this tag.tech

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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
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
BE

BentoML

Agents · Multi-model
8.2

Open-source framework and managed platform for serving and scaling AI models in production.

Freemium· OSS free (Apache 2.0); managed Bento cloud has free tier + usage-based pricingmodel-servingllm-inference
FE

Feast

RAG
8.2

Open-source feature store that serves consistent features to ML training and online inference, with RAG vector search built in.

Free· Free, open source (Apache 2.0); self-hostedfeature-storerag-retrieval
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
UN

Unsloth

Fine-tuning · Llama, Mistral, Gemma, Qwen, GLM (multi-model)
8.2

Open-source LLM fine-tuning toolkit with custom kernels that train 2-30x faster and use up to 90% less VRAM.

Freemium· Free open-source; Pro and Enterprise contact saleslora-finetuningqlora
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
ML

MLflow

Evaluation · Multi-model
8.1

Open-source platform for tracking, evaluating, and deploying ML models and LLM applications.

Free· Free and open source (Apache 2.0); managed offering via Databricksllm-evaluationexperiment-tracking
RT

Ray Tune

Fine-tuning
8.1

Open-source Python library for distributed hyperparameter tuning at any scale.

Free· Open-source (Apache 2.0); managed via Anyscale offers a $100 starting credithyperparameter-tuningdistributed-training
CA

CAMEL-AI

Agents · Multi-model
8.0

Open-source Python framework for building multi-agent systems and synthetic data pipelines.

Free· Free, open-source; pay for the underlying LLM API callsmulti-agent-systemssynthetic-data-generation
GE

Genmo

Video · Mochi 1
8.0

Open-source text-to-video model (Mochi 1) with a hosted playground for turning prompts into short clips.

Freemium· Free: $0/month · Lite: Loading... · Standard: Loading...text-to-videogenerative-video
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
KU

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
AS

AI SDK

Coding · Multi-model
7.2

Vercel's open-source TypeScript framework for building AI apps across 16+ providers with unified streaming, tools, and UI hooks.

Free· Open source (Apache 2.0); pay only for the underlying model APIschat-uiagent-building
CH

Chainlit

Agents · Multi-model
7.2

Open-source Python framework for building production-grade conversational AI interfaces in minutes.

Free· Open-source (Apache 2.0); optional paid Literal AI observability tierchatbot-uiagent-frontend
LF

LLaMA Factory

Fine-tuning · Multi-model (LLaMA, Mistral, Qwen, Gemma, Phi, LLaVA, ChatGLM, Yi)
7.2

Open-source, no-code WebUI for fine-tuning 100+ open LLMs with LoRA, QLoRA, DPO, and PPO.

Free· Free, open-source (Apache-2.0); self-hostedlora-fine-tuningqlora
AM

Apache Mahout

Coding
7.1

Open-source ML framework pivoting toward scalable quantum computing primitives.

Free· Free, Apache-2.0 licensedquantum-circuitshybrid-ml
PR

PrivateGPT

RAG · Multi-model (BYO local LLM)
7.0

Production-ready, air-gapped RAG framework for querying your documents with local LLMs.

Freemium· OSS free; Zylon enterprise contract (contact sales)private-ragchat-with-documents
AS

Apache SINGA

Fine-tuning
6.9

Apache-licensed distributed deep learning library focused on scalable training across GPUs and nodes.

Free· Free, Apache 2.0 licenseddistributed trainingdeep learning research
HA

Haystack

RAG · Multi-model
6.9

Open-source Python framework from deepset for building production RAG pipelines and LLM agents.

Freemium· Open-source free; deepset Enterprise Support and AI Platform via salesragagents
CB

Chatbot by Vercel

Coding · Provider-agnostic via the Vercel AI SDK (OpenAI, Anthropic, Google, xAI, Groq, Mistral, and others configurable)

Open-source Next.js chatbot template built on the Vercel AI SDK

Free· Free and open-source (MIT-style). Users cover their own hosting costs (e.g. Vercel plan) and AI provider API usage.Internal engineering copilotCustomer-facing support chatbot
CL

ClickHouse

RAG

The open-source columnar database powering real-time analytics — and, increasingly, LLM observability and RAG backends.

Freemium· Open-source self-managed: free. ClickHouse Cloud: from $50/month (usage-based on compute + storage, AWS/GCP/Azure). Enterprise tier available with dedicated support and BYOC options.LLM trace and cost analyticsRAG retrieval with hybrid vector + metadata filters
PM

Playwright MCP

MCP Servers

Microsoft's official Model Context Protocol server for browser automation via Playwright.

Free· Free and open source (Apache-2.0). No paid tiers — you cover browser/compute costs where you run it.Autonomous web browsing agentsEnd-to-end test authoring by demonstration