All Articles
Measuring Before You Tune: Experimenting With Gemini API's temperature, top-p, and top-k
An experiment-driven look at how temperature, top-p, and top-k behave across four real tasks. Instead of the usual rules of thumb, this guide shares actual numbers so you can pick sampling values with evidence rather than gut feeling.
Gemini API Micro-SaaS Monetization — Pricing, Margins, Billing, and Retention
A practical, implementation-level map for turning a Gemini-API-powered micro-SaaS into a real, profitable business — pricing, unit economics, billing stack, and retention engineering.
Parallel Function Calling in Gemini API: Production Patterns, Pitfalls, and Monitoring
A production guide to Parallel Function Calling in the Gemini API: DAG tool design, partial failure handling, rate limits, and monitoring — with working code.
Hitting the Subrequest Limit When Running Gemini API on Cloudflare Workers? Here's What Actually Works
Your Gemini API code works locally but throws 'Too many subrequests' the moment it ships to Cloudflare Workers or Vercel Edge. Here are the diagnostic steps and fixes I actually use across the sites I run.
Stopping Gemini API Function Calling Loops: Why They Happen and How to Break Them
Your tool-calling agent keeps invoking the same function and never finishes. Here is how to diagnose the loop and bake stop conditions into your prompt, code, and tool responses.
Preventing Gemini API Cost Spikes in Solo Products — Guardrails That Save You from Month-End Shocks
Nearly every solo developer using the Gemini API eventually has the 'why is my bill 10x what I expected' month. Here are the production-grade guardrails I always install in my own wallpaper app and client projects to stop cost runaways before they start.
Resilient Gemini API Services in Production — Circuit Breakers, Bulkheads, and Fallback Models That Keep Your App Alive
A production-ready resilience playbook for Gemini API: circuit breakers, bulkheads, jittered retries, and model fallback chains — with working Python so your service stays up even when the upstream doesn't.
Diagnosing Gemini API INVALID_ARGUMENT Errors by Root Cause
The INVALID_ARGUMENT (HTTP 400) error from the Gemini API can come from a surprising number of places, and the message alone rarely tells you which one. This guide walks through seven common root causes with real responses and code fixes.
When Gemini Mixes Japanese Into English Output — A Practical Playbook for Language Control
Gemini API often leaks source-language characters into translated output. Here is the System Instructions, few-shot and response_schema combination I use to stop it in production.
Controlling Function Calls in Gemini API with tool_config — AUTO, ANY, and NONE in Practice
A practical guide to tool_config in Gemini API. Learn the difference between AUTO, ANY, and NONE, how to stop Gemini from calling functions when you don't want it to, and how to restrict the callable set with allowed_function_names.
Running Gemini API Keys Safely: A Practical Checklist for Indie Developers
API key leaks are a real-world threat for solo developers. This practical 5-point checklist covers the common mistakes — accidental Git commits, client-side exposure, missing spend caps — and how to close those gaps quickly.
Driving Down Gemini 2.0 Flash RAG Costs with a 3-Tier Cache Design
Flash is cheap, but a RAG app still grows linearly with traffic. This tiered caching design — response, retrieval, and embedding layers — routinely cuts our bill by half. Here is the implementation.