Post

New release of my llm-openai plugin supporting today's three new GPT-4.1 models from OpenAI: llm install -U llm-openai-plugin llm -m openai/gpt-4.1 "Generate an SVG of a pelican riding a bicycle" github.com/simonw/llm-o...

Simon Willison

@simonwillison.net

14 Apr 2025

My notes on the GPT-4.1 series so far - 1m tokens (across all three models) and GPT-4.1-nano being their cheapest model yet are particularly notable simonwillison.net/2025/Apr/14/...

simonwillison.netGPT-4.1: Three new million token input models from OpenAI, including their cheapest model yetOpenAI introduced three new models this morning: GPT-4.1, GPT-4.1 mini and GPT-4.1 nano. These are API-only models right now, not available through the ChatGPT interface (though you can try them …

Simon Willison

@simonwillison.net

14 Apr 2025

Added this note to my post to help illustrate how absurdly inexpensive these models have got now. I can use GPT-4.1 nano to generate descriptions of 4,000 images for less than a dollar!

Martín Gaitán

@tinnqn.bsky.social

15 Apr 2025

wouldn't be nice to integrate the calculator in the log --usage output? or maybe like --usage --estimate-cost ?

Simon Willison

@simonwillison.net

I've been nervous about doing that because I don't want to provide incorrect estimates if the model prices change, but maybe I'm overthinking it

15/4/25, 2:44 am0 reposts0 likes

Martín Gaitán

@tinnqn.bsky.social

15 Apr 2025

As on the web, a note saying "[*] prices may have changed" seems fair enough. In fact, it could fetch the price list dynamically from the web, so you could update it independently of LLM itself.