Tools & Data

Free AI Tools & Live Data

Live benchmarks, model and API prices, GPU rental costs, and agent framework rankings. The data we track for delivering high quality AI systems.

Browse the Tools

Hardware Models & Benchmarks AI Agents

Hardware

Pick the right GPU, edge device, or workstation for your AI workload.

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AI chipset visualization representing hardware compute.

AI Hardware Directory

Compare GPUs, edge devices, TPUs, and more. Real specs, real benchmarks, and a built-in calculator to match hardware to your AI workloads.

Browse Hardware

Hardware Calculator

Enter your hardware specs and discover which AI models run best on your setup. Match GPUs, edge devices, and accelerators to compatible models based on real performance data.

Open Calculator

ROI calculator comparing local AI hardware costs to cloud API pricing.

AI Hardware ROI Calculator

Compare the total cost of running AI locally versus paying for cloud APIs. Find your break-even point and see long-term savings with an interactive amortization chart.

Calculate ROI

GPU Rental Price Index

Live cloud GPU rental prices across multiple marketplaces. Find the cheapest H100, A100, or RTX 4090 right now and see which models fit each card.

Compare Prices

Open AI roles and advertised salaries across three markets.

AI Hiring Index

How many AI engineer, ML engineer and MLOps roles are open right now in the US, UK and Germany, and what they pay. A read on where hiring budget is actually going.

See the Hiring Data

Quarterly capital spending at the largest AI infrastructure builders.

AI CapEx Tracker

Quarterly capital spending at Microsoft, Alphabet, Amazon, Meta, Nvidia and Oracle, pulled straight from their SEC filings. See who is building fastest and what share of revenue it takes.

See the Spending

Three-way comparison of self-hosting, renting, and using APIs for AI workloads.

Self-Host vs Rent vs API

Decision tool that compares buying a GPU, renting one in the cloud, and paying per token across the leading APIs. Powered by live OpenRouter and GPU rental prices.

Run the Comparison

Mini PC, dock, storage, and a reference book for running AI models locally.

Products for AI Builders

Mini PCs, docks, storage, scanners, and books we recommend. PCs for running models locally.

Open the Store

Models & Benchmarks

Rank, compare, and track open and closed AI models across benchmarks.

AI Model Rankings

Open-source AI models ranked by benchmarks, popularity, and hardware efficiency. Compare models, check VRAM requirements, and find the best model for your GPU.

Explore Rankings

Live API price tracker showing per-token costs across hosted AI models.

Live AI API Price Tracker

Live per-token pricing for 200+ hosted AI models across OpenAI, Anthropic, Google, and more. Sort by input, output, or blended cost. Refreshed hourly from multiple providers.

See API Prices

AI Model Treemap

A live treemap of the most downloaded open source models on Hugging Face this month. Tile size shows downloads, color shows the trend. Embed it on your site with one click.

Open the Treemap

Bar chart comparing open and closed source AI model benchmark scores.

Open vs Closed AI Gap Tracker

See the score gap between open-source and closed-source AI models across every text benchmark. Sorted lowest to highest, color-coded so the gap is obvious at a glance.

Open Gap Tracker

Library of AI benchmarks with score distributions and rankings.

AI Benchmarks Library

Plain-language deep dives for each of the 11 datasets we score AI models on. Top scorers, score distributions, lab averages, and benchmark-to-benchmark correlations.

Browse Benchmarks

Aggregated status dashboard for the major AI vendors and Cursor IDE.

AI Stack Status Tracker

Live status and recent incidents for OpenAI, Anthropic, Google AI Studio, xAI, and Cursor in one place. Refreshed every 5 minutes, with an aggregated RSS feed and a banner when more than one vendor is hit at once.

Open Status Tracker

AI Agents

Every notable agent framework, leaderboard, inference engine and desktop app side by side.

Directory of agent frameworks with rankings and capability flags.

Agent Frameworks Directory

Every notable agent framework, ranked by GitHub stars, downloads, contributors, and capabilities. Filter by language, license, and feature flags.

Browse Frameworks

Side-by-side comparison view of agent frameworks.

Compare Agent Frameworks

Pick two or three frameworks and see stars, downloads, capabilities, and trade-offs side by side. Share the link to revisit the comparison anytime.

Open the Comparator

Agent Cost Calculator

Estimate per-task and monthly cost of running an AI agent on your workflow. Workflow-aware math with framework overhead for LangGraph, CrewAI, Mastra, and the OpenAI Agents SDK.

Calculate Cost

Agent Benchmark Leaderboard

Live rankings of AI agent systems across GAIA, SWE-bench Verified, Tau-Bench, SciCode, USACO, and more. Filter by model, framework, and agent type, and embed the top three anywhere.

View the Leaderboard

Directory of LLM inference engines with rankings and capability flags.

Inference Engines Directory

Every notable engine for running LLMs locally and in production, ranked by GitHub stars, downloads, and capabilities. Compare vLLM, Ollama, SGLang, llama.cpp, and more by hardware and license.

Browse Engines

Side-by-side comparison view of LLM inference engines.

Compare Inference Engines

Pick two or three engines and see stars, downloads, capabilities, and trade-offs side by side. Share the link to revisit the comparison anytime.

Open the Comparator

Directory of AI agents compared side by side.

AI Agents Directory

Self-hosted agents like OpenClaw and its rewrites next to Claude Cowork, ChatGPT Agent and Microsoft Copilot. Live GitHub momentum, vendor status and model prices.

Browse Agents

Directory of desktop AI apps with rankings and capability flags.

Desktop AI Apps Directory

Every notable desktop app for chatting, coding, running agents, and fine-tuning on your own machine. Live GitHub stars, release downloads, platform support, and the engines and models each one runs.

Browse Apps

Side-by-side comparison view of desktop AI apps.

Compare Desktop AI Apps

Pick two or three desktop apps and see stars, release downloads, platforms, capabilities, and trade-offs side by side. Share the link to revisit the comparison anytime.

Open Comparator

Monthly Report

The AI Build ReportSeptember 2026

Which models lead, where API prices moved, and what it costs to run them. Measured from live data.

Cover of The AI Build Report, the free monthly snapshot of AI models, prices and hardware