Tutorials Intermediate
Clef Decision Models: Route Support Tickets in Python
Cloudflare's open Clef models return typed probabilities, not text. Build a cheap cascade router.
12 min read·Kodetra Technologies
TodayGuides
AI Guides for Builders
How-to content for builders, indie hackers, and AI engineers. Less theory, more shipped code.
Tutorials 
Tutorials Intermediate
OpenAI Ultrafast: Pay 6x Only When Latency Matters
A Python router that buys Ultrafast speed only where users wait, with fallback and cost tracking.
9 min read·Kodetra Technologies
5d ago
Tutorials Intermediate
Sonnet 5.5 Drops tool_choice: Build a Strict Tool Router
Forced tool use now 400s on Claude Sonnet 5.5. Replace it with strict tools and a retry guard.
9 min read·Kodetra Technologies
7d ago
Tutorials Intermediate
Opus 5 Effort Router: Auto-Pick Cost vs Capability
Route each task to the right Claude Opus 5 effort level and cut your token bill.
7 min read·Kodetra Technologies
Jul 27
Tutorials Intermediate
Build an Apple-Style Multi-Model AI Router in Python
WWDC let iPhone users pick ChatGPT, Gemini, or Claude. Build the same model router in Python.
9 min read·Kodetra Technologies
Jun 9
Tutorials Intermediate
CrewAI Flows: Event-Driven Multi-Agent Pipelines
Build event-driven multi-agent pipelines in CrewAI Flows: @start, @listen, @router, state.
4 min read·Kodetra Technologies
May 7
Mobile Intermediate
Expo Router Universal Links: Deep Link Setup in 2026
Open your app from any https URL with Expo Router. iOS + Android setup that actually works.
8 min read·Kodetra Technologies
May 5