Posit
@posit.co
We make free, open-source software for data scientists like the RStudio IDE.
We're formerly known as RStudio. You can always download our open-source IDE here. https://posit.co/download/rstudio-desktop/
We're formerly known as RStudio. You can always download our open-source IDE here. https://posit.co/download/rstudio-desktop/
We loved connecting over coffee with everyone at Phuse EU in Hamburg 🇩🇪 last week!
Learn more about integrating generative AI into your R and Python workflows with our Free GenAI Workshop. Reserve your spot here: calendly.com/rstudio-phil...
Learn more about integrating generative AI into your R and Python workflows with our Free GenAI Workshop. Reserve your spot here: calendly.com/rstudio-phil...
November 25, 2025 at 1:57 PM
We loved connecting over coffee with everyone at Phuse EU in Hamburg 🇩🇪 last week!
Learn more about integrating generative AI into your R and Python workflows with our Free GenAI Workshop. Reserve your spot here: calendly.com/rstudio-phil...
Learn more about integrating generative AI into your R and Python workflows with our Free GenAI Workshop. Reserve your spot here: calendly.com/rstudio-phil...
Positron is more than your average, basic editor.
Learn how Positron unites the interactive power of RStudio with the modern efficiency of VS Code, creating a single, free, polyglot environment for R and Python.
Read the white paper: posit.co/whitepaper/a...
Learn how Positron unites the interactive power of RStudio with the modern efficiency of VS Code, creating a single, free, polyglot environment for R and Python.
Read the white paper: posit.co/whitepaper/a...
November 24, 2025 at 7:53 PM
Positron is more than your average, basic editor.
Learn how Positron unites the interactive power of RStudio with the modern efficiency of VS Code, creating a single, free, polyglot environment for R and Python.
Read the white paper: posit.co/whitepaper/a...
Learn how Positron unites the interactive power of RStudio with the modern efficiency of VS Code, creating a single, free, polyglot environment for R and Python.
Read the white paper: posit.co/whitepaper/a...
Reposted by Posit
We’ve released two new tidymodels #rstats packages for feature selection: filter and important.
tidyverse.org/blog/2025/11...
tidyverse.org/blog/2025/11...
Two New tidymodels Packages
Two new tidymodels packages focus on supervised feature selection.
tidyverse.org
November 24, 2025 at 7:12 PM
We’ve released two new tidymodels #rstats packages for feature selection: filter and important.
tidyverse.org/blog/2025/11...
tidyverse.org/blog/2025/11...
testthat 3.3.0 is here! Major updates for #RStats testing include failure messages for easier debugging, 6 new specific expectations, and the SlowReporter to find your bottlenecks.
Heads Up: R 4.1+ is now required, and old mocking functions are removed.
Read the post: tidyverse.org/blog/2025/11...
Heads Up: R 4.1+ is now required, and old mocking functions are removed.
Read the post: tidyverse.org/blog/2025/11...
November 24, 2025 at 3:34 PM
testthat 3.3.0 is here! Major updates for #RStats testing include failure messages for easier debugging, 6 new specific expectations, and the SlowReporter to find your bottlenecks.
Heads Up: R 4.1+ is now required, and old mocking functions are removed.
Read the post: tidyverse.org/blog/2025/11...
Heads Up: R 4.1+ is now required, and old mocking functions are removed.
Read the post: tidyverse.org/blog/2025/11...
Reposted by Posit
The newest edition of the @posit.co AI Newsletter is out! Some notes on TOON, several open source updates, and a callout to two recent blog posts from @sara-altman.bsky.social and I.
posit.co/blog/2025-11...
posit.co/blog/2025-11...
2025-11-21 AI Newsletter - Posit
Several notable model releases from OpenAI, Gemini, and Moonshot, a new release of ellmer, and an LLM benchmark on plot interpretation.
posit.co
November 21, 2025 at 6:03 PM
The newest edition of the @posit.co AI Newsletter is out! Some notes on TOON, several open source updates, and a callout to two recent blog posts from @sara-altman.bsky.social and I.
posit.co/blog/2025-11...
posit.co/blog/2025-11...
Reposted by Posit
Often, the first question I get when sharing about Posit's LLM tools is "Will this expose my data?" @sara-altman.bsky.social and I wrote about the trust relationships involved when using our AI tools on the @posit.co blog.
posit.co/blog/trust-l...
posit.co/blog/trust-l...
Privacy and AI Assistants - Posit
Many of our LLM tools can execute code and access your files. What does this mean for privacy?
posit.co
November 20, 2025 at 6:49 PM
Often, the first question I get when sharing about Posit's LLM tools is "Will this expose my data?" @sara-altman.bsky.social and I wrote about the trust relationships involved when using our AI tools on the @posit.co blog.
posit.co/blog/trust-l...
posit.co/blog/trust-l...
Reposted by Posit
New in Posit Connect Cloud 🚀
Gain more control over your R & Python deployments — deploy from RStudio, set compute and runtime limits, and schedule auto republishing to keep dashboards up to date.
Learn more: posit.co/blog/more-co...
#RStats #Python #DataScience
Gain more control over your R & Python deployments — deploy from RStudio, set compute and runtime limits, and schedule auto republishing to keep dashboards up to date.
Learn more: posit.co/blog/more-co...
#RStats #Python #DataScience
November 20, 2025 at 4:43 PM
New in Posit Connect Cloud 🚀
Gain more control over your R & Python deployments — deploy from RStudio, set compute and runtime limits, and schedule auto republishing to keep dashboards up to date.
Learn more: posit.co/blog/more-co...
#RStats #Python #DataScience
Gain more control over your R & Python deployments — deploy from RStudio, set compute and runtime limits, and schedule auto republishing to keep dashboards up to date.
Learn more: posit.co/blog/more-co...
#RStats #Python #DataScience
Reposted by Posit
I am looking forward to PyData Boston in a few weeks. If anyone is going and wants to meet up please let me know. I will be sitting at the Posit table quite a bit of the time. I went to the last few PyData NYCs so it will be interesting to see how it differs. pydata.org/boston2025
PyData Boston 2025
pydata.org
November 20, 2025 at 2:12 PM
I am looking forward to PyData Boston in a few weeks. If anyone is going and wants to meet up please let me know. I will be sitting at the Posit table quite a bit of the time. I went to the last few PyData NYCs so it will be interesting to see how it differs. pydata.org/boston2025
Reposted by Posit
I'm honoured and delighted to be delivering the keynote for Japan.R 2025 in Tokyo on Dec 6.
New ideas on creativity and community in open source software. Live demonstrations of ggbot2, OpenTelemetry and mirai (Posit ecosystem-wide initiatives).
#Rstats #Tidyverse
japanr.connpass.com/event/374714/
New ideas on creativity and community in open source software. Live demonstrations of ggbot2, OpenTelemetry and mirai (Posit ecosystem-wide initiatives).
#Rstats #Tidyverse
japanr.connpass.com/event/374714/
japanr.connpass.com
November 20, 2025 at 12:20 PM
I'm honoured and delighted to be delivering the keynote for Japan.R 2025 in Tokyo on Dec 6.
New ideas on creativity and community in open source software. Live demonstrations of ggbot2, OpenTelemetry and mirai (Posit ecosystem-wide initiatives).
#Rstats #Tidyverse
japanr.connpass.com/event/374714/
New ideas on creativity and community in open source software. Live demonstrations of ggbot2, OpenTelemetry and mirai (Posit ecosystem-wide initiatives).
#Rstats #Tidyverse
japanr.connpass.com/event/374714/
Next Positron demo is Nov 26!
See built-in data exploration, plot history, app previews, AI that understands your R/Python session, and quick deployment to Posit Connect—all in one IDE.
Register → events.zoom.us/ev/Ajss5j9Ve...
#Positron #DataScience
See built-in data exploration, plot history, app previews, AI that understands your R/Python session, and quick deployment to Posit Connect—all in one IDE.
Register → events.zoom.us/ev/Ajss5j9Ve...
#Positron #DataScience
November 19, 2025 at 9:41 PM
Next Positron demo is Nov 26!
See built-in data exploration, plot history, app previews, AI that understands your R/Python session, and quick deployment to Posit Connect—all in one IDE.
Register → events.zoom.us/ev/Ajss5j9Ve...
#Positron #DataScience
See built-in data exploration, plot history, app previews, AI that understands your R/Python session, and quick deployment to Posit Connect—all in one IDE.
Register → events.zoom.us/ev/Ajss5j9Ve...
#Positron #DataScience
Introducing bluffbench, a new tool to evaluate how well LLMs actually see data plots.
When we trick LLMs with secret #RStats transformations, they can miss the visual contradiction.
bluffbench helps us measure this "blind spot" in AI coding agents. Learn more: posit.co/blog/introdu...
When we trick LLMs with secret #RStats transformations, they can miss the visual contradiction.
bluffbench helps us measure this "blind spot" in AI coding agents. Learn more: posit.co/blog/introdu...
When plotting, LLMs see what they expect to see - Posit
Data science agents need to accurately read plots even when the content contradicts their expectations. Our testing shows today's LLMs still struggle here.
posit.co
November 19, 2025 at 4:55 PM
Introducing bluffbench, a new tool to evaluate how well LLMs actually see data plots.
When we trick LLMs with secret #RStats transformations, they can miss the visual contradiction.
bluffbench helps us measure this "blind spot" in AI coding agents. Learn more: posit.co/blog/introdu...
When we trick LLMs with secret #RStats transformations, they can miss the visual contradiction.
bluffbench helps us measure this "blind spot" in AI coding agents. Learn more: posit.co/blog/introdu...
That's a wrap! Databricks Data + AI World Tour: Amsterdam and NYC.
Special thanks to our customer, Blake Abbenante of Suffolk Construction, for his Amsterdam presentation, “From Platform to Product: Databricks + Posit in Practice.”
Check out our Databricks eBook: posit.co/ebook/maximi...
Special thanks to our customer, Blake Abbenante of Suffolk Construction, for his Amsterdam presentation, “From Platform to Product: Databricks + Posit in Practice.”
Check out our Databricks eBook: posit.co/ebook/maximi...
November 18, 2025 at 5:50 PM
That's a wrap! Databricks Data + AI World Tour: Amsterdam and NYC.
Special thanks to our customer, Blake Abbenante of Suffolk Construction, for his Amsterdam presentation, “From Platform to Product: Databricks + Posit in Practice.”
Check out our Databricks eBook: posit.co/ebook/maximi...
Special thanks to our customer, Blake Abbenante of Suffolk Construction, for his Amsterdam presentation, “From Platform to Product: Databricks + Posit in Practice.”
Check out our Databricks eBook: posit.co/ebook/maximi...
Reposted by Posit
Seeing this years @posit.co table contest winners was inspiring: posit.co/blog/2025-ta.... It's amazing to see the functionality others came up with.
My favorite? Leo Ohyama's: github.com/leoohyama/po... .
The ticker at the top was a really neat idea.
#RStats #dataBS
My favorite? Leo Ohyama's: github.com/leoohyama/po... .
The ticker at the top was a really neat idea.
#RStats #dataBS
Winners of the 2025 Table Contest - Posit
We had many submissions to the Posit 2025 Table Contest and this post will show you the winners, the special prize recipients, and the runners up!
posit.co
November 18, 2025 at 4:18 PM
Seeing this years @posit.co table contest winners was inspiring: posit.co/blog/2025-ta.... It's amazing to see the functionality others came up with.
My favorite? Leo Ohyama's: github.com/leoohyama/po... .
The ticker at the top was a really neat idea.
#RStats #dataBS
My favorite? Leo Ohyama's: github.com/leoohyama/po... .
The ticker at the top was a really neat idea.
#RStats #dataBS
Reposted by Posit
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 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
Reposted by Posit
My lightning talk on {geotargets} from posit::conf(2025) is up on YouTube!
https://youtu.be/RmTtugX1CoE?si=3rER0gwnDueIsL4f
#positconf2025 #rstats #rspatial
https://youtu.be/RmTtugX1CoE?si=3rER0gwnDueIsL4f
#positconf2025 #rstats #rspatial
November 16, 2025 at 7:40 PM
My lightning talk on {geotargets} from posit::conf(2025) is up on YouTube!
https://youtu.be/RmTtugX1CoE?si=3rER0gwnDueIsL4f
#positconf2025 #rstats #rspatial
https://youtu.be/RmTtugX1CoE?si=3rER0gwnDueIsL4f
#positconf2025 #rstats #rspatial
Reposted by Posit
Everyone can now view my posit::conf 2025 talk "purrrfectly parallel, purrrfectly distributed"!
{purrr} now lets you access the magic of {mirai} directly, as the modern way to make things faster through parallel computation in #rstats.
youtu.be/j1yHjMvbnQM?...
{purrr} now lets you access the magic of {mirai} directly, as the modern way to make things faster through parallel computation in #rstats.
youtu.be/j1yHjMvbnQM?...
Purrrfectly parallel, purrrfectly distributed (Charlie Gao, Posit) | posit::conf(2025)
YouTube video by Posit PBC
youtu.be
November 17, 2025 at 11:30 AM
Everyone can now view my posit::conf 2025 talk "purrrfectly parallel, purrrfectly distributed"!
{purrr} now lets you access the magic of {mirai} directly, as the modern way to make things faster through parallel computation in #rstats.
youtu.be/j1yHjMvbnQM?...
{purrr} now lets you access the magic of {mirai} directly, as the modern way to make things faster through parallel computation in #rstats.
youtu.be/j1yHjMvbnQM?...
Have some free time this weekend? How about 2,500 hours?
The recordings from posit::conf(2025) are now online!
Learn about the innovations and insights from conf. We celebrated #RStats and #Python, with a focus on next-gen tools & #AI integration.
See the info here: posit.co/blog/talks-a...
The recordings from posit::conf(2025) are now online!
Learn about the innovations and insights from conf. We celebrated #RStats and #Python, with a focus on next-gen tools & #AI integration.
See the info here: posit.co/blog/talks-a...
Talk recordings and workshop materials from posit::conf(2025) - Posit
2500+ hours of posit::conf content just landed on YouTube.
posit.co
November 14, 2025 at 6:02 PM
Have some free time this weekend? How about 2,500 hours?
The recordings from posit::conf(2025) are now online!
Learn about the innovations and insights from conf. We celebrated #RStats and #Python, with a focus on next-gen tools & #AI integration.
See the info here: posit.co/blog/talks-a...
The recordings from posit::conf(2025) are now online!
Learn about the innovations and insights from conf. We celebrated #RStats and #Python, with a focus on next-gen tools & #AI integration.
See the info here: posit.co/blog/talks-a...
Reposted by Posit
Once you've built something with ellmer, how can you tell whether it's any good? My posit::conf(2025) talk on LLM evaluation with #rstats is now live. :)
www.youtube.com/watch?v=HciR...
www.youtube.com/watch?v=HciR...
Is that LLM feature any good? (Simon P. Couch, Posit) | posit::conf(2025)
YouTube video by Posit PBC
www.youtube.com
November 14, 2025 at 3:27 PM
Once you've built something with ellmer, how can you tell whether it's any good? My posit::conf(2025) talk on LLM evaluation with #rstats is now live. :)
www.youtube.com/watch?v=HciR...
www.youtube.com/watch?v=HciR...
Reposted by Posit
testthat 3.3.0 out now! This is a massive release with tons of improvements including better failure messages, new expectations, improved snapshotting, new vignettes, and much much more: tidyverse.org/blog/2025/11... Post includes some thoughts on developing an #rstats package with Claude Code.
testthat 3.3.0
testthat 3.3.0 brings improved expectations with better error messages, new expectations for common testing patterns, and lifecycle changes including the removal of `local_mock()` and `with_mock()`. I...
tidyverse.org
November 13, 2025 at 5:24 PM
testthat 3.3.0 out now! This is a massive release with tons of improvements including better failure messages, new expectations, improved snapshotting, new vignettes, and much much more: tidyverse.org/blog/2025/11... Post includes some thoughts on developing an #rstats package with Claude Code.
Check out our new tutorial from @chendaniely.bsky.social showing you how to use Shiny Express (the easiest way to build #Python web apps) and deploy them at zero cost on Posit Connect Cloud. We built the whole thing in Positron IDE! 🚀
Watch it here: www.youtube.com/watch?v=pNJr...
Watch it here: www.youtube.com/watch?v=pNJr...
November 13, 2025 at 4:48 PM
Check out our new tutorial from @chendaniely.bsky.social showing you how to use Shiny Express (the easiest way to build #Python web apps) and deploy them at zero cost on Posit Connect Cloud. We built the whole thing in Positron IDE! 🚀
Watch it here: www.youtube.com/watch?v=pNJr...
Watch it here: www.youtube.com/watch?v=pNJr...
Reposted by Posit
To be effective, data science agents need to be able to read plots reliably. @sara-altman.bsky.social and I wrote about some concerning findings on LLMs' ability to interpret plots when the content contradicts their expectations on the @posit.co blog.
posit.co/blog/introdu...
posit.co/blog/introdu...
When plotting, LLMs see what they expect to see - Posit
Data science agents need to accurately read plots even when the content contradicts their expectations. Our testing shows today's LLMs still struggle here.
posit.co
November 13, 2025 at 3:07 PM
To be effective, data science agents need to be able to read plots reliably. @sara-altman.bsky.social and I wrote about some concerning findings on LLMs' ability to interpret plots when the content contradicts their expectations on the @posit.co blog.
posit.co/blog/introdu...
posit.co/blog/introdu...
See how Positron scales at work.
Join our November 26 demo to explore Positron Pro, the enterprise-ready IDE inside Posit Workbench.
Register here → events.zoom.us/ev/Ajss5j9Ve...
#DataScience #Positron #Python #RStats
Join our November 26 demo to explore Positron Pro, the enterprise-ready IDE inside Posit Workbench.
Register here → events.zoom.us/ev/Ajss5j9Ve...
#DataScience #Positron #Python #RStats
November 12, 2025 at 11:34 PM
See how Positron scales at work.
Join our November 26 demo to explore Positron Pro, the enterprise-ready IDE inside Posit Workbench.
Register here → events.zoom.us/ev/Ajss5j9Ve...
#DataScience #Positron #Python #RStats
Join our November 26 demo to explore Positron Pro, the enterprise-ready IDE inside Posit Workbench.
Register here → events.zoom.us/ev/Ajss5j9Ve...
#DataScience #Positron #Python #RStats
Reposted by Posit
November 12, 2025 at 3:52 PM
Reposted by Posit
We're hiring an open-source #python developer focused on modeling APIs!
tidyverse.org/blog/2025/11...
#numpy #scipy #scikitlearn
tidyverse.org/blog/2025/11...
#numpy #scipy #scikitlearn
Python Open-Source Developer
Posit is hiring a Python open-source developer to create more data analysis tools.
tidyverse.org
November 12, 2025 at 5:46 PM
We're hiring an open-source #python developer focused on modeling APIs!
tidyverse.org/blog/2025/11...
#numpy #scipy #scikitlearn
tidyverse.org/blog/2025/11...
#numpy #scipy #scikitlearn