ellmer
ellmer stopped being a chat wrapper and started shipping the parts production LLM code needs
Comparison · ai-assistants
btw vs Gemini
A side-by-side editorial comparison of btw and Gemini — release velocity, themes, recent moves, and the top alternatives to consider.
btw vs Gemini: at a glance
What is btw?
btw is turning into an agentic R harness that no longer needs you to be in R
btw assembles context about an R session — packages, documentation, files, data frames — and hands it to an LLM through ellmer, with btw_app() as a chat interface. Over the last year it has grown well past context assembly: LLMs can document, check, test and measure coverage of a package, read CLAUDE.md and AGENTS.md as project context, fetch skills from packages or GitHub, and inspect the source of any installed namespace. Much of this is now reachable from a terminal CLI rather than only from an R prompt.
What is Gemini?
A new Flash model aimed at coding and agents lands in a feed otherwise full of lifestyle posts.
Gemini 3.7 Flash arrives positioned as the most intelligent workhorse model yet for coding and agents — the second Flash generation in roughly three weeks, after 3.6 Flash shipped alongside 3.5 Flash-Lite and Flash Cyber. Around it the feed is mostly promotion: expert interviews about Omni, builder showcases, a state-fair tips post, and a milestone announcement that the Gemini app passed one billion monthly users. The one other substantive entry extends app and service connections inside the assistant.
btw vs Gemini: editorial side-by-side
btw
2.5AI-ASSISTANTS
btw is turning into an agentic R harness that no longer needs you to be in R
◆ Current state
btw assembles context about an R session — packages, documentation, files, data frames — and hands it to an LLM through ellmer, with btw_app() as a chat interface. Over the last year it has grown well past context assembly: LLMs can document, check, test and measure coverage of a package, read CLAUDE.md and AGENTS.md as project context, fetch skills from packages or GitHub, and inspect the source of any installed namespace. Much of this is now reachable from a terminal CLI rather than only from an R prompt.
◆ Where it's heading
The direction is from describing a session to operating on it, and from inside R to outside it. Each release adds either a tool group that lets a model do something (document, check, test, cover; read namespace source; fetch skill resources) or a CLI command that removes the need to start R first. The 1.2.0 tool renaming — session becoming sessioninfo, search becoming cran, files_read_text_file becoming files_read — reads as the naming cleanup you do when you expect a lot more tools to follow.
◆ Prediction
The CLI has been absorbing one tool family per release (skills, then pkg desc and pkg src) while the R-side tool groups stay ahead of it, so the next releases likely continue exposing existing tool groups as terminal commands rather than adding new capabilities.
Gemini
10.0AI-ASSISTANTS
A new Flash model aimed at coding and agents lands in a feed otherwise full of lifestyle posts.
◆ Current state
Gemini 3.7 Flash arrives positioned as the most intelligent workhorse model yet for coding and agents — the second Flash generation in roughly three weeks, after 3.6 Flash shipped alongside 3.5 Flash-Lite and Flash Cyber. Around it the feed is mostly promotion: expert interviews about Omni, builder showcases, a state-fair tips post, and a milestone announcement that the Gemini app passed one billion monthly users. The one other substantive entry extends app and service connections inside the assistant.
◆ Where it's heading
Two things are running in parallel. The model line is iterating fast and segmenting by job — Flash is being tuned specifically toward coding and agentic work rather than general speed — while the consumer app grows by reaching into more third-party services. The publishing cadence favors consumer marketing, so model launches surface as single-sentence posts among lifestyle content and are easy to miss.
◆ Prediction
Expect the Flash line to keep iterating on a short cycle with coding and agent benchmarks as the framing, and for the connector surface in the app to keep widening toward more third-party services.
Alternatives to btw and Gemini
Other ai-assistants products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either btw or Gemini.
tfevents
tfevents logs TensorBoard events from R, and this release only changes who maintains it.
safetensors
safetensors for R changes hands with no code change to show for it.
torchdatasets
torchdatasets ships custodial work as mlverse gathers its torch satellites under one maintainer.
mlr3tuningspaces
A curated catalogue of published hyperparameter search spaces, now reaching deep neural networks
mlr3hyperband
Hyperband tuning for mlr3, now built on an asynchronous backend it treats as mandatory
Recent activity from btw and Gemini
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agoGeminiIntroducing Gemini 3.7 Flash ⚡
- 2d agoGeminiOmni experts share what excites them most about the model.
- 3d agoGeminiNow you can connect even more of your favorite apps and services to Gemini.
- 3d agoGeminiMore than 1 billion people are using the Gemini app every month.
- 4d agoGeminiHave more fun at the state fair with these Google tools
- 8d agoGeminiSee what 5 builders are making with Gemini Omni
- 10d agobtwbtw 1.4.0 adds CLI commands for reading R package source
- 1mo agobtwbtw 1.3.0 makes skills fetchable from the terminal ⚡
- 4mo agobtwbtw 1.2.1
- 5mo agobtwbtw 1.2.0 renames its tool groups ahead of expansion
- 7mo agobtwbtw 1.1.0 lets an LLM document, check and test an R package ⚡
Frequently asked questions
What is the difference between btw and Gemini?
They serve adjacent needs but don't currently overlap on shipped themes. Gemini is currently shipping more aggressively (velocity 10.0 vs 2.5), with 1 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is btw better than Gemini?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Gemini is currently shipping more aggressively (velocity 10.0 vs 2.5), with 1 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other ai-assistants products to evaluate alongside.
What are the best alternatives to btw?
Top btw alternatives in ai-assistants are ranked by recent ship velocity. Browse the "btw alternatives" section above for the current picks, or visit /alternatives/btw-r for the full list with editorial commentary on each.
What are the best alternatives to Gemini?
Top Gemini alternatives in ai-assistants are ranked by recent ship velocity. Browse the "Gemini alternatives" section above for the current picks, or visit /alternatives/gemini for the full list with editorial commentary on each.