Gemini 2.5: Updates to our household of considering fashions

At this time we’re excited to share updates throughout the board to our Gemini 2.5 mannequin household:

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

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

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

Gemini 2.5 fashions are considering fashions, able to reasoning by their ideas earlier than responding, leading to enhanced efficiency and improved accuracy. Every mannequin has management over the considering funds, 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

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

Gemini 2.5 Flash-Lite is a reasoning mannequin, which permits for dynamic management of the considering funds with an API parameter. As a result of Flash-Lite is optimized for price and pace, “considering” 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 “considering” and “non-thinking value”, which led to developer confusion.

With the secure 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 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 considering vs. non-thinking value distinction

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

Whereas we try to take care of constant pricing between preview and secure releases to attenuate disruption, this can be a particular adjustment reflecting Flash’s distinctive worth, nonetheless providing one of the best cost-per-intelligence out there.

And with Gemini 2.5 Flash-Lite, we now have an excellent decrease price possibility (with or with out considering) 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 prevailing preview pricing will stay in impact till its deliberate deprecation on July 15, 2025, at which level that mannequin endpoint might be turned off. You possibly can transition to the commonly out there mannequin “gemini-2.5-flash”, or change to 2.5 Flash-Lite Preview as a decrease price 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 we have now 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 count on that circumstances 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.

If you’re utilizing 2.5 Professional Preview 05-06, the mannequin will stay out there till June 19, 2025 after which might be turned off. If you’re 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 stay up for sharing extra about scaling past Professional within the close to future.