HolyGrAIL

All tasks / Tools

LLM (CLI)

Open-source command-line tool and Python library for prompting cloud and local models through plugins, logging to SQLite.

  • Simon Willison
  • Local or cloud
  • Free, open source

Official site · Source code

Where it ranks

  • A
    Chat & assistants
    Runtimes & gateways · Local · via GLM-5.3-Flash
    With cloud models: tier S (via Claude Opus 5.5)
  • C
    Coding
    Runtimes & gateways · Local · via GLM-5.3-Flash
    With cloud models: tier S (via Claude Opus 5.5)

Tools without a benchmark of their own inherit the tier of the best model they offer.

Facts

Vendor
Simon Willison
Approach
Runtimes & gateways
Where it runs
Runs fully on your hardware with local models; cloud models optional
Interface
Command line
Skill level
Advanced: command line, node graphs or self-hosting
Price
Free, open source
Pricing notes
Free and open source.
Source code
Open source (Apache-2.0)
GitHub stars
12.6k (19 Oct 2026)
Last verified
19 Oct 2026

Price from github.com, 19 Oct 2026.

Models it gives you

Sources