Samsung's putting a lot more eggs in its AI basket this year. The Korean electronics giant is offering minimal hardware updates to its flagship mobile phones in favor of embedding the capabilities more deeply into its Samsung One UI 7 software (in beta since early December) and Android 15. The new Galaxy S25, S25 Plus and S25 Ultra are mostly vehicles for it, with a new processor to boost performance and bigger batteries to compensate. Plus an upgraded ultrawide camera on the Ultra.For more from the event as it happened, see our archived live blog. This story is part of Samsung Event, CNET's collection of news, tips and advice around Samsung's most popular products. AI Select analyzes what's on your phone's screen and provides recommendations. Lisa Eadicicco/CNET Galaxy AI Samsung differentiates its AI from being an agent -- reactive -- to being more of a proactive "companion."Some of the new tools which become available with the S25 line include: AI Select, which monitors your screen to make helpful suggestions.Cross-app actions, where holding down the power button while in voice search lets you expand a query to add subsequent actions to perform, even using multiple apps.Complex natural-language search comes to its photo gallery (to classify and serve up images) and help (to find the settings you need based on specific problems).Now Brief on your lock screen summarizes overnight and upcoming information pertinent to your day based on your habits.Now Bar is a persistent widget on the lock screen with real-time information that doesn't require unlocking the phone.Improvements include: Combining and analyzing every piece of data on your phone to proactively make suggestions across Health, Wallet, SmartThings and more.Circle to Search adds sound recognition to its screen-based queries.Generative Edit should be faster and more accurate at moving, resizing and removing unwanted objects, plus it can recognize shadows.Portrait Studio improves its stylized portrait rendering.Samsung says the new features will come to older models subsequent to the S25 line, which includes them at launch along with Android 15. Read more:Samsung Galaxy S25 Series: The Biggest New AI FeaturesSamsung says the battery life has extended quite a bit across all the phones, which is what most people care about, anyway. The S25 Edge, as teased during the event. Samsung/Screenshot by CNETWe also were treated to a throwaway brief teaser for the S25 Edge, an ultraslim model ostensibly priced below the Ultra... possibly a counter to the rumors of the ultraslim iPhone? AT&T tells CNET's Eli Blumenthal that it will carry the new phone, but gives no further details. So it is coming the US. Lisa Eadicicco/CNET Galaxy S25 Ultra Once you filter out AI, there aren't that many differences between the S25 Ultra and the last-generation model. Samsung's updated it to look a little more like its smaller siblings, features a slightly bigger 6.9-inch screen -- the bezels are just smaller, so the phone itself isn't larger -- and upgrades the processor to its custom version of the 3nmQualcomm Snapdragon 8 Eliteand accompanying chipset.The chip runs at a higher frequency than the standard version -- and therefore hotter -- so the phone incorporates expanded cooling. Additionally, Samsung has upgraded the sensor in its ultrawide camera to 50 megapixels.The S25 models are also the first phones with Google's Project Astra tech -- screen-sharing and live video with Gemini so that you can show Gemini what you want to ask about.It starts at $1,300 and you can preorder it now and it ships Feb. 7.Read more:Samsung Galaxy S25 Ultra Gets a Bigger Screen and More AI $1,300 at Samsung Watch this: Samsung Galaxy S25 Ultra Hands-On: A Bigger Screen and More AI 07:31 Celso Bulgatti/CNET Galaxy S25 and S25 Plus Like the S25 Ultra, Samsung's betting on AI to put a shine on the new Galaxy S25 and S25 Plus -- that and some new colors, including navy, icy blue, mint and silver shadow, as well as online exclusives blue black, coral red and pink gold. Like the Ultra they get upgrades to the Snapdragon 8 Elite to feed the AI beast, but the Ultra's runs at a higher frequency.The cameras remain the same, with Samsung hoping to give them a bigger boost via updates to its AI processing for better noise analysis in videos and enhanced ability to differentiate between motion and still elements to boost its automatic adjustments.The S25 Plus incorporates a 6.7-inch QHD+ Dynamic AMOLED display and 4,900 mAh battery, in contrast to the S25's 6.2-inch FHD+ Dynamic AMOLED display and 4,000 mAh pack. Those seem to be the only differences between the two. The Galaxy S25 starts at $800, while the S25 Plus starts at $1,000 and preorders are open now. They also ship Feb. 7.Read more: Hands On: Galaxy S25 and S25 Plus Are More of the Same, With AI Hogging the Spotlight $800 at Samsung Watch this: Samsung Galaxy S25 First Look: AI Everywhere 04:43