Tutorials Intermediate
Grok 4.7 Stateless Agents: Replay Encrypted Reasoning
Build a store=false Grok 4.7 tool agent that keeps its reasoning, hits cache, and escalates effort.
13 min read·Kodetra Technologies
11d agoGuides
AI Guides for Builders
How-to content for builders, indie hackers, and AI engineers. Less theory, more shipped code.
Tutorials 
Tutorials Intermediate
GPT-6 Luna First, Sol on Demand: A Python Cascade
Send GPT-6 requests to Luna, validate the JSON, and pay Sol prices only when the checks fail.
13 min read·Kodetra Technologies
12d ago
Tutorials Intermediate
GPT-6 Astra: Change Reasoning Effort Without Losing Cache
Use configuration_update to raise or lower Astra's reasoning effort mid-chat and keep cache hits.
11 min read·Kodetra Technologies
28d ago
Tutorials Intermediate
Grok 4.6 Agents: Dodge the 200K Price Cliff
Keep long-running Grok 4.6 agents cheap: cache keys, token budgets, and the 200K cliff.
10 min read·Kodetra Technologies
Aug 14
Tutorials Intermediate
DeepSeek V4-Flash KV Cache: Cut Input Costs 50x
Structure prompts so DeepSeek's disk cache hits, and pay ~50x less on repeated input tokens.
9 min read·Kodetra Technologies
Aug 5
Tutorials Advanced
Swap Tools Mid-Chat on Claude Opus 5, Keep the Cache
Add or drop Claude Opus 5 tools between turns without invalidating your prompt cache.
12 min read·Kodetra Technologies
Jul 28
Tutorials Intermediate
Kimi K3: Query a Million-Token Repo for Pennies
Point the OpenAI SDK at Moonshot's 2.8T K3, load a whole repo, and cut cost with caching.
8 min read·Kodetra Technologies
Jul 17
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
Jul 11
Tutorials Intermediate
Grok 4.5 Tool Loops: Tune Effort and Cache to Cut Cost
Build an agentic Grok 4.5 tool loop in Python: route reasoning_effort and cache to slash cost.
7 min read·Kodetra Technologies
Jul 10
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
Jul 1
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
Jun 30
Tutorials Intermediate
Fable 5 Prompt Caching: Slash 1M-Token Codebase Costs
Reuse a huge codebase prefix across every Fable 5 call and pay ~90% less.
8 min read·Kodetra Technologies
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