Machine Learning Advanced
Verifiers v1: Train Agents Past the Context Window
Ship a taskset, swap any harness, and turn compacted rollouts into real RL training samples.
13 min read·Kodetra Technologies
TodayGuides
AI Guides for Builders
How-to content for builders, indie hackers, and AI engineers. Less theory, more shipped code.
Machine Learning 
Tutorials Intermediate
Prompt Cache Retention: Cut OpenAI Bills Up to 90%
Structure prompts, set prompt_cache_retention, and read cached_tokens to slash GPT-5.6 input costs.
8 min read·Kodetra Technologies
3d ago
Machine Learning Intermediate
SWE-Together: Grade Coding Agents on Multi-Turn Sessions
Build a SWE-Together-style multi-turn coding-agent eval with an LLM user simulator in Python.
10 min read·Kodetra Technologies
6d ago
Machine Learning Advanced
Read an LLM's Mind: Probe Hidden Thoughts Like J-Space
Train a linear probe on hidden activations and steer output, the method behind Anthropic's J-Lens.
9 min read·Kodetra Technologies
7d ago
Tutorials Intermediate
Run LongCat-2.0 in Python: Meituan's Owl Alpha
Meituan's 1.6T open MoE topped OpenRouter as 'Owl Alpha.' Call it in Python with the OpenAI SDK.
8 min read·Kodetra Technologies
8d ago
Tutorials Intermediate
Hermes Agent: Teach a Local LLM to Write Its Own Skills
Install Nous Research's self-improving agent, run it on a local model, and build a reusable skill.
11 min read·Kodetra Technologies
12d ago
Tutorials Intermediate
Build a Prompt-Injection Eval for Claude Sonnet 5 Agents
Sonnet 5 claims better hijack resistance. Here's how to measure it yourself.
10 min read·Kodetra Technologies
12d ago
Tutorials Intermediate
Gemini 3.5 Pro: Feed a 2M-Token Codebase in One Call
Load a whole repo into Gemini 3.5 Pro's 2M context, query it without RAG, and cache to cut cost.
8 min read·Kodetra Technologies
13d ago
Tutorials Intermediate
Migrate to Claude Sonnet 5: Effort and the Tokenizer Trap
Hands-on Python guide to Sonnet 5's adaptive thinking, effort levels, and the 30% tokenizer trap.
10 min read·Kodetra Technologies
13d ago
Tutorials Intermediate
Semantic Caching for LLMs: Cut Your Token Bill in Python
Build a semantic cache that reuses answers for similar prompts and slashes LLM API costs.
10 min read·Kodetra Technologies
14d ago
Tutorials Intermediate
Build an LLM Spend Governor: Budget Caps in Python
A runnable Python governor that caps LLM spend per user and auto-downgrades models.
10 min read·Kodetra Technologies
15d ago
Tutorials Intermediate
Stream Gemini Thinking: Build a Show-Your-Work CLI
Stream Gemini's thought summaries live, control reasoning effort, and track thinking-token cost.
8 min read·Kodetra Technologies
17d agoPage 1 of 4