If you have been following the news then you understand how fast AI evolution is taking place and every major company out there is bringing out their own iteration of AI.
Among all these models and assistants, we are definitely going to see Google coming out with new versions of its own AI model by the name of Gemini.
And we just witnessed the latest version of Gemini in the form of Gemini 2.5 getting released to the public.
Along with that release comes a whole new set of features which makes this AI model one of the most powerful multimodal large models out there capable of complicated reasoning and it is also being called by Google as the thinking model.
Why is Google calling this a “thinking model” and what are all the latest and greatest features of Gemini 2.5?
Well, we are about to find that out in this blog so stay tuned and it will be an amazing journey of uncovering one of the most powerful innovations in AI in the world.
Let us start this by understanding the model and understanding what this is all about.
What exactly is Gemini 2.5?
Gemini 2.5 is the latest version or third generation of Google’s multimodal large-model family and has been created with performance and reasoning in mind in the hopes of producing results with far better factual accuracy and long-form coherence as well as court quality.
In fact, when the first public release was launched in the form of Gemini 2.5 Pro Preview in March 2025 it already ranked #1 in the LM-Arena’s human-preference leaderboard.
Fun fact, it still is number 1 in multiple parameters.
Gemini 2.5 is the most intelligent AI model according to Google and as of now the first 2.5 release is an experimental version of 2.5 Pro.
The entire concept of Gemini 2.5 is that it is a thinking model capable of reasoning much better than the other older versions and is responding with much-improved accuracy and performance.
In order to prove the effectiveness of this model Google has also promoted how good it is when it comes to various tasks such as reasoning as well as science and mathematics.
Meet the 2.5 lineup: Pro and Flash
2.5 Pro
2.5 Pro is the most powerful version of Gemini and its strength basically is in the areas of deep reasoning as well as complex code and research tasks. If you want you can use this for your day-to-day activities but it will take too much time to generate the results and you do not really need this level of reasoning for that.
Gemini 2.5 Pro is typically used in coding as well as data analysis and even RAG pipelines and anything complicated where reasoning is involved.
2.5 Flash
If you are looking for something lightweight that is able to generate results and provide you fast responses at a lower cost then Gemini 2.5 Flash should be your best option.
It is primarily used for its conversation user experience and agentic voice bots and even for real-time apps. However, you should not utilise this for complicated tasks.
So, What’s New with Gemini 2.5?
Built-in “Thinking”
One of the reasons why 2.5 is a big deal is because of its thinking capabilities where the model can present you with answers that are much more accurate and it has been created in a way to prevent hallucinations as much as possible. This is excellent for coding purposes.
Deep Think (preview)
Gemini 2.5 is excellent with reasoning and has a reasoning mode that helps you spawn multiple solution branches for things like math and logic as well as competitive coding problems. While it is still in preview, we can expect a lot of potential from this.
1 M-Token Context Window (2 M coming)
Context window is everything for AI models and this is the first large-scale model that comes with a 1 million token context window and also has a 2 million context window in the works that will come soon. This means the AI will be able to remember stuff a lot longer and you can feed it information right from huge sections of novels to entire transcripts from meetings and expect it to remember every detail and help you with it.
Native Audio I/O (30+ voices, 24 languages)
With Gemini 2.5 you can expect excellent audio capabilities and it opens up new options for voice bots as well as accessibility options and language practice. You can think of all the possibilities with this.
Flash Variant
While Gemini 2.5 is primarily being praised for its Pro version, the Flash version of 2.5 deserves much more attention because it has been created with speed in mind and it is perfect for being a real-time agent. Let’s face it, almost 90% of Gemini users are going to be happy with Flash for everyday tasks.
Project Mariner & Agent Mode
These are browser-automation agents that can juggle up to ten tasks. This is coming to the Gemini app and API.
Hardened Security
Gemini 2.5 comes with new filtering and sandbox tricks that can lift the block rate on indirect prompt injections. This simply means that this is the safest version in Google’s model family yet.
Benchmark Bragging Rights
While we understand that benchmarks are not everything but we should also give Google credit where it’s due because it’s a fact that this is currently the number one on LMArena and WebDev Arena.
Should You Try the New Gemini Out?
- You absolutely should try it out because this new thinking model architecture simply means Gemini 2.5 will now be able to explain to you how it got to an answer and it can also keep track of long conversations which is very good for research and learning as well as debugging.
- Apart from that you can feed it everything from lengthy transcripts to PDFs and also mix text and images and get creative as much as you can.
- The best thing about this release is that it is for everyone as you might not need the Pro version of it and so you might just opt for Flash and you do not have to pay Pro prices.
- Then there is Project Mariner + Agent Mode which will be able to turn Gemini from chat-bot into do-bot, automating multi-step web tasks.
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