Gemini 3.6 Flash
According to Google, it has improved coding, multimodal tasks and knowledge work while using fewer tokens. As measured by Artificial Analysis, it consumed 17% fewer output tokens than 3.5 Flash. Its API costs $1.50 for input and $7.50 for output per million tokens.
Gemini 3.5 Flash‑Lite
It is designed for high-volume, fast tasks: document processing, search, and many small agent steps. Google says it can output 350 tokens per second and is priced at $0.30/$2.50 per million tokens.
Gemini 3.5 Flash Cyber
A model tuned to find, check and fix code bugs and security holes. As part of the CodeMender system, it comes in a limited program to government and trusted partners. In other words, this is not the function that we accidentally turn on in Gmail on a Friday night.
And Gemini 4?
There is no official Gemini 4 announcement or release date on July 29, 2026. The name can easily be confused with the already presented Gemma 4 model family; the difference in a separate fact-checking article we present it.
What does this mean for the average user?
Faster responses, cheaper applications and less unnecessary text can be expected. For the developers, this means a smaller bill, and for the users, hopefully, fewer paragraphs starting with "it's important to remember first".
Which one should you choose for what?
The most powerful model is not automatically the best for every task. For processing many short documents or for simple classification, the speed and price of Flash‑Lite may be more important. For more complex coding, image or multi-step work, the greater ability of 3.6 Flash can give better results. The Cyber version is designed for special, controlled security use, not for general chatting.
As a developer, you should run the same test task on several models. The manufacturer's benchmark helps guide you, but the true cost and quality is shown by how the model performs with your documents, language and workflow.
Is faster response always better?
Not necessarily. For a tag, short extract or simple search, yes. In the case of an important contract, security analysis or complex decision, verifiability is worth more than speed. The name "Flash" promises speed, not infallibility.
The Gemini Flash Family Cast
3.6 Flash is the relative who answers all your questions before you've finished. Flash‑Lite took your shopping home while you were still writing the list. And Flash Cyber stands silently by the door, checks the lock three times, and then tells you that the password for the refrigerator is too weak.
When asked where Gemini 4 is, everyone points to Gemma. Gemma protests, Gemini explains, Flash‑Lite has already moved on, and by then the internet has produced its fourth comparison chart.