Explore AI

Tools

The sites and services worth knowing, grouped by what you are actually trying to do.

Comparing models

Blind side-by-side comparisons voted on by the public, which produces the most honest ranking available. You can also just use it to try models for free.

Deciding between two models without reading a single benchmark table.

Independent measurement of quality against speed and price, updated as models ship.

The one place that puts cost next to capability, which is the comparison that actually matters.
OpenRouterPay per token

One account and one API key reaching hundreds of models from many providers, with live pricing published openly.

Trying many models without signing up to many providers. Also the source of the pricing data in these appendices.

Finding models

Where open models actually live. Every model card carries its licence, and most have a browsable demo.

Downloading weights, and checking what a licence really permits before you build on it.

A Chinese model hub that often has releases before they appear elsewhere, and hosts mirrors when the main hub is slow.

Getting a model whose Western download is rate-limited or unavailable.

A curated list of models packaged for one-command installation, with sensible quantisation already chosen.

The fastest route from nothing to a running model. Start here rather than at the hub.

Trying models free

A generous free playground for Google's models, with an API key you can use in code.

Building something real without paying anything to begin with.
GroqFree tier

Serves open-weight models on specialised hardware at unusually high speed.

Finding out how much latency actually affects your experience. Speed changes how you use a model.
CerebrasFree tier

Another unusually fast inference service, with a usable free tier.

The same experiment as above, on different hardware.

Local interfaces

A self-hosted chat interface that connects to local models and hosted APIs, with documents and users.

Turning a local model into something a household or small team can actually use.
JanFree

A desktop chat app for local models, open source and offline by default.

Anyone who wants a private assistant with no terminal at all.

Images

Node-based interface for image and video generation. Steep, and nothing else comes close for control.

Serious image work, reproducible pipelines, and anything involving video.

The interface that made local image generation popular, with a large library of extensions.

Legacy workflows and old tutorials. New work is better served by ComfyUI.

Trying without installing

Thousands of hosted demos, one per model or tool, runnable in a browser.

Seeing whether a model is any good before downloading twelve gigabytes of it.

Renting compute

Google ColabFree tier, then paid

Notebooks with a GPU attached, free at a basic tier.

Running something once, without owning hardware or configuring a server.
KaggleFree tier

Notebooks with a weekly GPU allowance, and a large public dataset collection.

Free GPU hours, and data to experiment with.
RunPodPer hour

Rent a GPU by the hour, with templates for common inference setups.

Running a model too large for your machine, occasionally. Remember to stop the instance.

Building

LangChainFree library

The most widely used framework for connecting models to tools, data and each other.

Prototypes, and anything you might hand to someone else. Ubiquity is its main virtue.
LlamaIndexFree library

A framework focused specifically on retrieval over your own documents.

Private document search — the use case most people actually want from local AI.
Vercel AI SDKFree library

A TypeScript toolkit for streaming model output into a web application.

Putting a model behind a web interface without reinventing streaming.

Where to start, by what you are doing

  • Choosing a model → LMArena first, Artificial Analysis second. Both are independent of the labs.
  • Getting a model running → the Ollama library, then LM Studio if you would rather not use a terminal.
  • Without installing anything → Hugging Face Spaces has a hosted demo of almost everything.
  • Building something → an aggregator for the API key while you experiment, then direct provider keys once you have settled.
  • Images → ComfyUI. It is steep and it is the only serious option.
A warning about directories

Lists of AI tools are the fastest-rotting pages on the internet — including this one. Every link here was checked on the date shown at the top, and some will be dead before the next check. That is not a reason to skip the check; it is the reason to date it.