llm

Developer Tools

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Heat Score

7-Day Change

+14

A.R.C. Grade

—

Pricing

free

llm is a free CLI tool and Python library that lets you run prompts and chat with language models directly from the terminal.

CLI tool and Python library by Simon Willison for running prompts and chatting with language models from the terminal.

What the signals say about llm

llm holds a HookFlow heat score of 78/100 in Developer Tools, computed from live Reddit, GitHub, Product Hunt and search signals. Over the last 7 days its score moved +14 points (up), +20 over 30 days. On the Lock-In Index it scores 33/100 (moderate lock-in, with some migration friction).

Heat Score

0–100 viral momentum index combining social buzz, search trends & growth velocity

14-day trend

24h

+14

+20

30d

Computed from 12 live sources in the latest pipeline run — more sources, higher confidence.

Heat Score Breakdown

Creator Buzz (30%)67

Search Interest (25%)66

Community Discussion (20%)42

Growth Momentum (25%)90

What is llm used for?

llm is a command-line interface and Python library designed to run prompts against language models and conduct interactive chats with AI models from your terminal.

Can you use llm as a Python library?

Yes, llm is available both as a CLI tool and as a Python library, allowing you to integrate language model interactions into Python scripts and applications.

Who created llm?

llm was created by Simon Willison.

Does llm cost money?

No, llm is free to use.

Forecast

Decelerating

low confidence

Now

→

+7 days

→

+14 days

A.R.C. Score

A.R.C. ratings are calculated for developer infrastructure and API-first tools. This tool hasn't been evaluated yet or falls outside the A.R.C. scope.

🔓Data Lock-In Index

33/ 100

Lower = more portable. 0 = fully open, 100 = maximum lock-in.

✗ Webhooks Out✓ Bulk Export✓ Open Formats

Pricing

free

Best For

Teams & Solo