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8 api tool AI tools with real overviews, features, and pros/cons.

Vercel AI SDK

Free · ★ 4.0
The Vercel AI SDK is a free open-source library that provides the tools needed to build AI-powered products. It offers a unified provider...

Groq

Freemium · ★ 4.0
Groq delivers fast, low-cost inference that doesn’t flake when things get real, and is used by over 3 million developers and teams. The c...

LiteRT

Free
LiteRT (formerly TensorFlow Lite) is Google's AI Edge runtime for running models on-device across Android, iOS, and embedded targets. Lit...

TurboVec

Free
TurboVec is a Rust vector index with Python bindings that compresses embedding vectors with Google Research's TurboQuant algorithm for fa...

Agnes AI

Free
AI gateway platform offering a free AI API and a suite of AI-powered applications in one place.

LiteLLM

Free
Unified OpenAI-shaped API over 100+ LLM providers. SDK or proxy mode, with cost tracking, fallback, and virtual keys.

MarkItDown

Free
MarkItDown is a lightweight Microsoft Python utility that converts PDFs, Office files, images, audio, HTML, text formats, ZIPs, YouTube U...

RAGFlow

Free
Enterprise-grade RAG engine with deep document understanding. Handles messy PDFs, tables, and scans better than most DIY stacks.

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