Gemini 2.5: Updates to our household of pondering fashions

In the present day we’re excited to share updates throughout the board to our Gemini 2.5 mannequin household:

• Gemini 2.5 Professional is usually obtainable and secure (no adjustments from the 06-05 preview)

• Gemini 2.5 Flash is usually obtainable and secure (no adjustments from the 05-20 preview, see pricing updates under)

• Gemini 2.5 Flash-Lite is now obtainable in preview

Gemini 2.5 fashions are pondering fashions, able to reasoning via their ideas earlier than responding, leading to enhanced efficiency and improved accuracy. Every mannequin has management over the pondering finances, giving builders the flexibility to decide on when and the way a lot the mannequin “thinks” earlier than producing a response.

Introducing Gemini 2.5 Flash-Lite

In the present day, we’re introducing 2.5 Flash-Lite in preview with the bottom latency and value within the 2.5 mannequin household. It’s designed as a cheap improve from our earlier 1.5 and a couple of.0 Flash fashions. It additionally presents higher efficiency throughout most evals, and decrease time to first token whereas additionally attaining larger tokens per second decode. This mannequin is nice for top throughput duties like classification or summarization at scale.

Gemini 2.5 Flash-Lite is a reasoning mannequin, which permits for dynamic management of the pondering finances with an API parameter. As a result of Flash-Lite is optimized for price and pace, “pondering” is off by default, in contrast to our different fashions. 2.5 Flash-Lite additionally helps all of our native instruments like Grounding with Google Search, Code Execution, and URL Context along with operate calling.

Updates to Gemini 2.5 Flash and pricing

Over the past yr, our analysis groups have continued to push the pareto frontier with our Flash mannequin collection. When 2.5 Flash was initially introduced, we had not but finalized the capabilities for two.5 Flash-Lite. We additionally launched with a “pondering” and “non-thinking value”, which led to developer confusion.

With the secure model of Gemini 2.5 Flash rolling out (which is similar 05-20 mannequin preview we made obtainable at Google I/O), and the unimaginable efficiency of two.5 Flash, we’re updating the pricing for two.5 Flash:

• $0.30 / 1M enter tokens (*up from $0.15 enter)

• $2.50 / 1M output tokens (*down from $3.50 output)

• We eliminated the pondering vs. non-thinking value distinction

• We stored a single value tier no matter enter token measurement

Whereas we attempt to keep up constant pricing between preview and secure releases to attenuate disruption, it is a particular adjustment reflecting Flash’s distinctive worth, nonetheless providing the most effective cost-per-intelligence obtainable.

And with Gemini 2.5 Flash-Lite, we now have a good decrease price choice (with or with out pondering) for price and latency delicate use circumstances that require much less mannequin intelligence.

If you’re utilizing the Gemini 2.5 Flash Preview 04-17 , the present preview pricing will stay in impact till its deliberate deprecation on July 15, 2025, at which level that mannequin endpoint can be turned off. You’ll be able to transition to the commonly obtainable mannequin “gemini-2.5-flash”, or change to 2.5 Flash-Lite Preview as a decrease price choice.

Continued development of Gemini 2.5 Professional

The expansion and demand for Gemini 2.5 Professional continues to be the steepest of any of our fashions we now have ever seen. To permit extra clients to construct on this mannequin in manufacturing, we’re making the 06-05 model of the mannequin secure, with the identical pareto frontier value level as earlier than.

We anticipate that circumstances the place you want the very best intelligence and most capabilities are the place you will note Professional shine, like coding and agentic duties. Gemini 2.5 Professional is on the coronary heart of most of the most cherished developer instruments.

If you’re utilizing 2.5 Professional Preview 05-06, the mannequin will stay obtainable till June 19, 2025 after which can be turned off. If you’re utilizing 2.5 Professional Preview 06-05, you possibly can merely replace your mannequin string to “gemini-2.5-pro”.

We are able to’t wait to see much more domains profit from the intelligence of two.5 Professional and look ahead to sharing extra about scaling past Professional within the close to future.