User Reports High Speed and Low Cost Using Gemini 3.6 Flash on Codex
A user shared their experience using Google's Gemini 3.6 Flash model within the Codex workspace, highlighting its ability to complete research and generate a promotional webpage in just one to two seconds. This highlights the growing efficiency of lightweight "Flash" models, which can deliver near-frontier performance at a fraction of the cost and time, accelerating rapid prototyping and web development workflows. The user compared the model's capability to a hypothetical "Opus 5" level, emphasizing its cost-effectiveness and speed. Google's Gemini 3.6 Flash has been noted in evaluations for its strong performance in citation-heavy research and data extraction.
## BACKGROUND
Google's Gemini Flash series represents lightweight, high-speed, and cost-effective large language models designed for high-throughput tasks. Codex is an AI-assisted workspace and coding agent environment that allows developers to build applications and run code using various AI models.