How I Decide Between 3.8 Flash and 3.7 Flash — A Fixed Set of 20 Questions
After swapping a model ID to a newer generation, the same input can start producing answers that feel split. Here is the 20-question evaluation set I keep, how I run both generations on equal footing, and the two numbers I use to decide.
Routing Between Gemini 3.7 Flash and 3.1 Pro by Rework Cost, Not Speed
A single question replaced my model-selection ritual: can a machine catch this output when it is wrong? Here is how that splits work between 3.7 Flash and 3.1 Pro, plus the pricing math across the December 31 cutover.
The Strongest Gemini Is in Preview and the Cheap One Is GA. That Ordering Should Drive Your Model Choice
Sort the Gemini lineup by release stage instead of capability and the order inverts: the strongest reasoning model sits in preview while the fast, inexpensive Flash models are GA. Here is how a solo developer handles that, plus a 30-line script that counts how many preview models your code already depends on.
Moving to the Batch Tier Cancels Out the Gemini 3.7 Flash Price Increase Exactly
Introductory pricing for Gemini 3.7 Flash ends on December 31, 2026, and the rate doubles the next day. Here is which models are affected, which are not, and how to project your January bill from the usage you already have.
Three Weeks of Running Gemini 3 Pro and 2.5 Pro Side by Side on Wallpaper Category Classification — An Implementation Memo
Notes from running Gemini 3 Pro and 2.5 Pro in parallel for three weeks on the image classification pipeline of my iOS and Android wallpaper apps — cost, accuracy, and latency observations from an indie developer.
Routing Gemini by Pipeline Stage: Draft on Flash, Finish on the Top Tier
A record of reworking which Gemini model handles which stage of an automation pipeline, prompted by the general availability of Gemini 3.5 Flash and the rollout of 3.1 Flash-Lite. Includes a small router that splits work into draft, classify, and finalize stages, how the cost picture changes, and the guardrails I settled on.
gemini-2.5-pro-latest— Model Aliases, Parameters, and Production Patterns
A deep practical guide to calling the Gemini API with the `gemini-2.5-pro-latest` alias. Covers model pinning, parameter tuning, timeouts, streaming, structured output, and a production-grade checklist.
Choosing a Gemini Model Without Second-Guessing — A Cost, Speed, and Quality Framework
How to pick between Gemini 2.5 Pro / Flash / Flash Lite / Gemini 3 Pro / Flash across cost, speed, and quality. Includes correct google-genai SDK code and the decision rules I use when running automation in production.