#Ellmer
We are delighted to announce the release of ellmer, an R package for accessing the power of LLMs in R!

ellmer supports a variety of model providers. Chat, tool call, stream API calls, extract structured data, and more!

Learn about it here: posit.co/blog/announc...

#RStats #AI #LLM
February 26, 2025 at 3:01 PM
Slides from my #ShinyConf talk earlier today: "LLM-Powered Shiny apps with ellmer and chatlas"

docs.google.com/presentation...

#rstats #rshiny #python #ai
Shiny AI apps using ellmer & chatlas
LLM-Powered Shiny apps with ellmer and chatlas bit.ly/shiny-ellmer-chatlas Carson Sievert Senior Software Engineer Posit, PBC
docs.google.com
April 10, 2025 at 6:00 PM
ellmer 0.5.0 is now on CRAN! #rstats 🎉 New in this release: citations from web search, new ways to upload files, token counting before you send, streaming structured output, and AWS Bedrock Mantle support. Read all about it on the Posit Open Source blog: opensource.posit.co/blog/2026-09...
ellmer 0.5.0
ellmer 0.5.0 is now on CRAN, with new ways to send files to the model, citations from web search tools, and new ways to update model price data.
opensource.posit.co
September 21, 2026 at 5:37 PM
🐘 ellmer 🐘 makes it easy and fun to use LLMs from #rstats, and 0.3.0 is out now. Read about the new streamlined chat() function, improvements to tool specifications, and more at www.tidyverse.org/blog/2025/07....
ellmer 0.3.0
The newest version of ellmer introduces a simpler `chat()` interface that can works with any provider, a bunch of improvements to tool calling, and a handful of smaller quality of life improvements.
www.tidyverse.org
July 25, 2025 at 1:25 PM
Want to easily use LLMs from R? ellmer 0.2.0 provides:

• Batch & parallel processing
• A universal parameter interface
• Cost tracking
• Support for Mistral, Hugging Face, & Portkey

And much more! Read all about it at: www.tidyverse.org/blog/2025/05... #rstats
ellmer 0.2.0
ellmer 0.2.0 lands with a swag of upgrades: Garrick Aden‑Buie joins the team, we make a couple of breaking changes, and add serious scale with `parallel_chat()` and `batch_chat()`. A new `params()` ...
www.tidyverse.org
June 3, 2025 at 4:34 PM
ellmer 0.4.0 is out now! New features include Claude caching & file uploads, support for newer OpenAI responses API, web search tools, and better security. Read more at tidyverse.org/blog/2025/11... #rstats
ellmer 0.4.0
ellmer 0.4.0 includes important lifecycle updates, new Claude features (caching, file uploads, web tools), OpenAI improvements, and enhancements to error handling, pricing tracking, and security.
tidyverse.org
November 18, 2025 at 6:38 AM
ellmer (formerly known as elmer) is now on CRAN! ellmer makes it easy to chat with LLM models from a variety of providers and includes support for streaming responses, tool calling and structured data extraction: ellmer.tidyverse.org #rstats
Chat with Large Language Models
Chat with large language models from a range of providers including Claude <https://claude.ai>, OpenAI <https://chatgpt.com>, and more. Supports streaming, asynchronous calls, tool calling, and struct...
ellmer.tidyverse.org
January 9, 2025 at 6:13 PM
LLMs + #RStats are a powerful combo. I wrote a little post about using R to curate GitHub data and {ellmer} to program with LLMs to automate one of my least favorite tasks: remembering what I did this week.

www.garrickadenbuie.com/blog/llm-wor...
Remembering what I did this week with LLMs – Garrick Aden-Buie
Using the GitHub API and {ellmer} to remember what I did this week.
www.garrickadenbuie.com
January 25, 2025 at 12:27 AM
OpenTelemetry has come to R 🎉

Shiny, plumber2, mirai, httr2, ellmer, knitr, testthat, and DBI are now instrumented: production-grade traces from R with no code changes. Set a few env vars and telemetry flows to the backend of your choice.

Full write-up: opensource.posit.co/blog/2026-05...

#Rstats
Bringing OpenTelemetry to R in production
Posit has instrumented Shiny, plumber2, mirai, httr2, ellmer, knitr, testthat, and DBI with OpenTelemetry, and created tools for you to instrument your own packages, bringing production-grade observab...
opensource.posit.co
May 7, 2026 at 12:12 PM
vcr really is a game changer for testing HTTP APIs in #rstats. It’s made development of ellmer so much more enjoyable.
new vcr release v2! vcr helps record & replay HTTP interactions in #rstats tests. Major update w/ better defaults, enhanced security, new local scoping tools & improved debugging. Huge thanks to @hadley.nz for the majority of work on this release

📋 github.com/ropensci/vcr...
📚 docs.ropensci.org/vcr
July 29, 2025 at 2:35 AM
New #rstats blog post: Deep Dive into ellmer: Part 1.

I explore the source code behind ellmer's starter workflow - creating a new Chat object and calling the $chat() method.

www.howardbaik.com/posts/deep-d...

Thanks to @hadley.nz , @grrrck.xyz, @atheriel.bsky.social, and others for 🐘 ellmer 🐘 !
August 4, 2025 at 1:26 PM
Meet gander, a chat interface for R data scientists🪿

gander automatically incorporates context from your #rstats environment and surrounding code and can be used with any model supported by ellmer in either RStudio or Positron.

Read more: simonpcouch.github.io/gander/
January 16, 2025 at 2:47 PM
New #rstats blog post: Deep Dive into ellmer: Part 2.

I explore the source code behind ellmer's tool calling functionality:

www.howardbaik.com/posts/deep-d...

Thanks to @hadley.nz, @grrrck.xyz, @atheriel.bsky.social, others for 🐘ellmer🐘!
September 16, 2025 at 3:22 PM
✨Use llms from #rstats with ellmer ✨Version 0.2.0 is on CRAN now. No blog post yet because I'm about to go on vacation, but in the meantime you can check out the release notes: github.com/tidyverse/el....
github.com
May 18, 2025 at 2:13 PM
New tutorial out! 🚀 Learn how to chat with ChatGPT, Claude, and Gemini inside R using the {ellmer} package.

Covers safe API setup, workflow integration, and structured outputs for text + images.

👉 alfredohs.com/posts/ellmer...

#RStats #LLMs #DataScience
The ELLMER Package
A tutorial for using the R Ellmer package for API access to LLMs
alfredohs.com
November 2, 2025 at 5:06 PM
Heute war mal wieder Zugfahr-Zeit

#Perryrhodan
August 6, 2026 at 10:01 PM
One of my favourite sessions at @shinyconf.bsky.social was @cpsievert.bsky.social’s talk: "Building LLM-Powered Shiny apps via {ellmer} and chatlas" 💬✨ It showed how one can integrate Large Language Models (LLMs) directly into your Shiny apps using {ellmer} 🤯
#ShinyConf2025 #RStats #ellmer
May 7, 2025 at 1:20 PM
I just ran a session today on Ellmer and using it to programatically burn tokens I mean do stuff
“- An AI consultant tells Axios one of their clients recently spent half a billion dollars in a single month after failing to put usage limits on Claude licenses for employees.”

Ahahhaahhahahahahahahhahahahahahahahahahahahahahahaahahahhahahahahahahaahahhahahaahhaahahahahhahahahahahahahahahahhahaaha
May 29, 2026 at 2:24 AM
Wir haben ein E-Book veröffentlicht, das zwei klassische Planetenromane von Arndt Ellmer enthält. Über diesen Science-Fiction-Doppelpack schrieb ich einen Text im Redaktionsblog – hiermit auch hier geteilt:

perry-rhodan.blogspot.com/2026/07/ein-...
#buchsky #sciencefiction #perryrhodan
July 28, 2026 at 8:56 AM
❗️Our next workshop will be on June 13th, 6 pm CEST, on Using LLMs with ellmer by @hadley.nz!
Register or sponsor a student by donating to support Ukraine!
Details: bit.ly/3wBeY4S
Please share!
#AcademicSky #EconSky #RStats
June 6, 2025 at 8:28 AM
We're excited for #ShinyConf2025!

Posit's Carson Sievert will talk about "Building LLM-Powered Shiny apps via ellmer and chatlas"

Learn more and see the full agenda at www.shinyconf.com/agenda.

#RShiny #ShinyForPython #rstats
March 24, 2025 at 12:26 AM
I love "structured output" as a way of extracting data from text as data frame. 🎯

Image shows using the {ellmer} package and how using type_array(type_object(...)) automatically returns a data frame in R 🔧

{ellmer} website: ellmer.tidyverse.org

#rstats #llms #ai #datascience
January 22, 2026 at 3:10 PM
Honored to have my code in here

top_k = "top_k"
December 3, 2025 at 5:52 PM
#レコード
#テクノ

Jam & Spoonは、ドイツのテクノ/トランスデュオであり、Rolf Ellmer(Jam)とMarkus Löffel(Spoon)によって結成

monumental-movement.jp/Jam&Spoon-Fe...
Jam&Spoon Feat. Plavka – Kaleidoscope Skies
Jam & Spoonは、ドイツのテクノ/トランスデュオであり、Rolf Ellmer(Jam)とMarkus Löffel(Spoon)によって結成されました。彼らは1990年代に多くの人気曲を生み出し、そのサウンドとプロダクションスキルで知られています。
monumental-movement.jp
August 15, 2025 at 3:10 AM
I took the contents of my workshop at RainbowR on the topic of LLMs in R & made it into a course! It's about {ellmer}, and I spent soo long agonising over how to sell it, I gave up & instead released it under a "Pay What You Want" model 😅😂 #rstats #llms #ai

www.aifordatapeople.com/courses/llms...
LLMs in R - Quick Wins
A fun, practical approach to learning how to work with LLMs in R. This is a course for anyone looking to get a quick overview of the most important aspects of working with the ellmer package.
www.aifordatapeople.com
March 25, 2026 at 4:59 PM