AI Radar

Gemini 2.0 Flash Thinking

Retired · Language, Reasoning

Gemini 2.0 Flash Thinking is an experimental reasoning model from Google, built on Gemini 2.0 Flash and offered in preview in the Gemini API and Google AI Studio from December 2024 and in the Gemini app from February 2025. Google describes it as a test-time compute model that shows its thought process while generating a response; it never left experimental status. [1]December 19, 2024 [2] Primary source

Timeline of Gemini 2.0 Flash Thinking →

Claims and evidence

  • Released Public preview (experimental) in the Gemini API and Google AI Studio, as Gemini 2.0 Flash Thinking Mode. Primary source[1]December 19, 2024
  • Deprecated Primary source[1]November 4, 2025
  • Retired Scheduled shutdown date as announced; the deprecations page says such dates are the earliest possible shutdown dates. Primary source[1]November 4, 2025
  • Updated preview version (gemini-2.0-flash-thinking-exp-01-21) Primary source[1]January 21, 2025
  • Available in the Gemini app Primary source[2] [3]2025.02.05
  • Upgraded version in the Gemini app, also powering Deep Research Primary source[4] [3]2025.03.13
  • Status RetiredNever released as a stable model. The release notes announced the shutdown of all its API ids for 2025-12-02; no later entry confirms the shutdown, and the deprecations page no longer lists these ids. Primary source[1]November 4, 2025
  • Derived from (other) Gemini 2.0 FlashGoogle says the model is built on 2.0 Flash and trained to break prompts into a series of steps; no training method is named. Primary source[2] [3]2025.02.05
  • Change · Reasoning Adds a thinking process: Google says the model is trained to break prompts into a series of steps, and it shows its reasoning before answering.Compared with Gemini 2.0 Flash Primary source[2] [1]December 19, 2024
  • Feature Reasoning modeShows its thought process while generating a response. Primary source[1]December 19, 2024 [2]
  • Parameters Not disclosedNot disclosed by Google. No claim madeNo source
  • Access API, consumer appExperimental model in the Gemini API and Google AI Studio; Gemini app from 2025-02-05. Primary source[1]December 19, 2024 [2]

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