September 4, 2026
Hi, it’s Vipul. Let’s explore this week’s changes in the Rails codebase. Agents on Rails: Claude Fable 5.1 and GLM 5.3 Flash Claude Fable 5.1 matched Opus 5 at the...
September 2, 2026
Claude Fable 5.1 dropped yesterday. See how it handles real Rails tasks, and where it landed on the leaderboard today. We also finally have a name for the stealth model...
September 1, 2026
Eddie Galindo is an engineering lead at Ascend and Kagen Hearn is a senior software engineer there, working on a Rails app that helps insurance agencies move and reconcile money....
August 28, 2026
Hi, it’s Greg. Let’s explore this week’s changes in the Rails codebase. Agents on Rails: lemans goes open source Another week, another update from Agents on Rails. This one is...
August 24, 2026
Another week, another step for Agents on Rails. This one is a big one: lemans, the harness behind every number we’ve published, is now open source. We also ran four...
August 21, 2026
Hi, it’s Claudio Baccigalupo. Let’s explore this week’s changes in the Rails codebase. Add –no-banner to bin/rails console I love seeing the Rails logo when I run the console. If...
August 18, 2026
Joanna Wang is a senior software engineer at Sixfold, where the team builds AI underwriting tools that help insurance companies gather data and assess risk. She came to Ruby on...
August 17, 2026
Last week we launched Agents on Rails and published the first benchmark report. The response was immediate: suggestions, questions, model requests, and more than a few “but have you tried…”...
August 14, 2026
Hi, Wojtek here. Let’s explore this week’s news in the Rails. Agents on Rails Read the announcement and the first benchmark report. Add support for the HTTP QUERY method QUERY...
August 13, 2026
TL;DR We ran 8 models against 21 atomic Rails tasks, 3 runs each. Every task runs against Writebook: a bug report, a security finding, a feature request, each written the...