Gemini 2.5: Updates to our household of pondering fashions

As we speak we’re excited to share updates throughout the board to our Gemini 2.5 mannequin household:

• Gemini 2.5 Professional is mostly out there and steady (no adjustments from the 06-05 preview)

• Gemini 2.5 Flash is mostly out there and steady (no adjustments from the 05-20 preview, see pricing updates beneath)

• Gemini 2.5 Flash-Lite is now out there in preview

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

Introducing Gemini 2.5 Flash-Lite

As we speak, 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 gives higher efficiency throughout most evals, and decrease time to first token whereas additionally reaching 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 value 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 steady model of Gemini 2.5 Flash rolling out (which is identical 05-20 mannequin preview we made out there at Google I/O), and the unbelievable 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 saved a single value tier no matter enter token measurement

Whereas we attempt to take care of constant pricing between preview and steady releases to reduce disruption, it is a particular adjustment reflecting Flash’s distinctive worth, nonetheless providing the perfect cost-per-intelligence out there.

And with Gemini 2.5 Flash-Lite, we now have an excellent decrease value possibility (with or with out pondering) for value and latency delicate use instances that require much less mannequin intelligence.

In case you are utilizing the Gemini 2.5 Flash Preview 04-17 , the prevailing preview pricing will stay in impact till its deliberate deprecation on July 15, 2025, at which level that mannequin endpoint will likely be turned off. You’ll be able to transition to the commonly out there mannequin “gemini-2.5-flash”, or change to 2.5 Flash-Lite Preview as a decrease value possibility.

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 now we have ever seen. To permit extra clients to construct on this mannequin in manufacturing, we’re making the 06-05 model of the mannequin steady, with the identical pareto frontier value level as earlier than.

We count on that instances the place you want the very best intelligence and most capabilities are the place you will notice Professional shine, like coding and agentic duties. Gemini 2.5 Professional is on the coronary heart of lots of the most beloved developer instruments.

In case you are utilizing 2.5 Professional Preview 05-06, the mannequin will stay out there till June 19, 2025 after which will likely be turned off. In case you are utilizing 2.5 Professional Preview 06-05, you’ll be able to 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.