en.wikipedia.org/wiki/Gemini_(language_model)

Google’s May 14, 2024 announcements describe Gemini 1.5 Flash as a new model: “we’re introducing Gemini 1.5 Flash,” and also note that Gemini 1.0 had already launched in three sizes: Ultra, Pro and Nano. That means Flash was added to the family; it was not a renaming of Nano.

A second official developer post from the same day says Google was “introducing 1.5 Flash” and describes it as “this smaller Gemini model,” again treating it as a separate launch. The article’s statement that 1.5 Flash “got renamed from ‘Nano’ to ‘Flash’” conflicts with Google’s own release history.

Google’s official Gemini 3 launch post from November 18, 2025 says the company was “releasing Gemini 3” by “releasing Gemini 3 Pro in preview” and explicitly says Deep Think would be available later, after more safety work. The post states: “For Gemini 3 Deep Think mode, we’re taking extra time for safety evaluations ... before making it available ... in the coming weeks.”

Google then published a separate official post on February 12, 2026 titled “Gemini 3 Deep Think: Advancing science, research and engineering,” which says “Today, we’re releasing a major upgrade to Gemini 3 Deep Think” and that it was “starting today” in the Gemini app for Google AI Ultra subscribers.

So the article is wrong to say Google announced the release of both 3 Pro and 3 Deep Think on November 18, 2025. On that date, Google released 3 Pro and said 3 Deep Think was still pending.

The article says no whitepapers were published for Gemini 2.0, 2.5, and 3. But Google has published official post-1.0 documentation for those generations.

Most directly, Google published a Gemini 2.5 technical report. An official Google-hosted PDF is titled “Gemini 2.5: Pushing the Frontier with Advanced Reasoning, Multimodality, Long Context, and Next Generation Agentic Capabilities.” That alone contradicts the blanket statement that no whitepapers were published for Gemini 2.0, 2.5, and 3.

Separately, Google DeepMind’s official model cards page lists published/updated model cards for Gemini 2.0 Flash, Gemini 2.5 Pro / Flash / Flash-Lite / Deep Think, and Gemini 3 Pro / Flash / 3.1 Pro / 3.1 Flash-Lite / 3.1 Flash Image. So it is not true that Google published nothing for these generations after Gemini 1.0.

Google’s official Gemini API deprecations table gives release dates for stable Gemini models. In that table, gemini-2.0-flash-lite is listed with a release date of February 25, 2025. The Wikipedia article’s model-version table instead says “1 February 2025”, which does not match Google’s official release record.