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Should You Let Them Build It in Rails?
You cannot judge a framework you cannot read, and comparing frameworks across ecosystems mostly produces noise. Here is what a non-technical founder can actually check when someone proposes Ruby on Rails.
· Paul Keen
What RubyLLM Retries, and For How Long
RubyLLM retries POSTs that Faraday would not, and honors Retry-After with no upper bound. A 429 can park a Rails request for as long as the provider says.
· JetThoughts Team
RubyLLM vs Langchainrb for Rails
RubyLLM is a model client with Rails generators. Langchainrb is retrieval plumbing. Pick by whether you query your own documents, not by provider count.
· JetThoughts Team
RubyLLM in Rails: Chat, Tools, Streaming
Add LLM chat to Rails with RubyLLM: one API for OpenAI, Claude, and Ollama, acts_as_chat persistence, tool calling, streaming into Turbo, and real trade-offs.
· JetThoughts Team
Ruby Fibers for LLM Streaming in Rails
LLM responses stream for 30 seconds while a Rails thread waits. The arithmetic of Puma threads vs open SSE streams, and when Falcon's fibers earn the switch.
Ruby 4.0 YJIT vs ZJIT: Performance Guide
Ruby 4.0 ships two JIT compilers. What YJIT delivers on Rails apps in 2026, the two flags worth tuning, and when the experimental ZJIT is worth a try.
Multi-Agent LLM Pipelines in Rails
Our production multi-agent LLM pipeline in Rails: eight RubyLLM agents on a 21-line base class, a 16-line loop, and the deploy that starved the database pool.
· JetThoughts Team
Evaluating LLM Agents in Rails
How a Rails team knows whether its LLM agents still work: bounded schemas at the boundary, and a per-iteration audit trail you can read a month later.
· JetThoughts Team
Debugging RubyLLM Agents in Rails
What a green Rails suite actually asserts when the thing under test is a hosted model: VCR matches on method and URI only, and the model can be retired.
· JetThoughts Team
Rails CVE-2026-66066: Patch Isn't Enough
CVE-2026-66066 lets an unauthenticated upload read server files via Active Storage. Patching Rails is not enough - libvips must go to 8.13 and secrets rotate.
· JetThoughtsTell us what you need built