The twelfth season of the Argentine version of the television reality show Gran Hermano was announced on 3 July 2024 by Telefe, with Santiago del Moro continuing as the show's host.
The show follows a group of contestants (known as HouseGuests), who live in a house together while being constantly filmed and having no communication with the outside world as they compete to win a grand prize. Each week, the HouseGuests compete in a Head of Household (HoH) competition which gives them immunity from nominations and the power to save one of the nominees up for eviction. On eviction night, the audience votes to evict one of the nominees.
The season premiered on 2 December 2024, and concluded on 24 June 2025. It is the third continuous season to air on Telefe after making its return to the network in 2022. On 22 June 2025, Gran Hermano was renewed by Telefe for a thirteenth season.
Santiago Algorta was crowned the winner of the season, with Ulises Apóstolo finishing as runner-up and Luz Tito in third place.
Format The show follows a group of contestants, known as HouseGuests, who live inside a custom-built house outfitted with cameras and microphones recording their every move 24 hours a day. The HouseGuests are sequestered with no contact with the outside world. During their stay, the HouseGuests share their thoughts on their day-to-day lives inside the house in a private room known as the Diary Room. Each week, the HouseGuests compete in competitions to win power and safety inside the house. At the start of each week, the HouseGuests compete in a Head of Household (abbreviated as "HOH") competition. The winner of the HoH competition is immune from eviction and selects another HouseGuest to be saved for eviction. On eviction night, the audience vote to evict one of the nominees, and the nominee with the most votes is evicted from the house.
Format changes and additions
Head of Household Super Powers Beginning this season, the HouseGuest that wins the competition, gets series of Super Powers to use during the week. + Week Head(s) ofHousehold Power Chosen 1 You must ban four HouseGuests from nominating. Delfina,Jenifer,Petrona,Sandra 2 Sofía You must nominate two HouseGuests. Martina,Renato You must ban two HouseGuests from nominating. Giuliano,Ulises 3 Ulises Your votes will count as doubled. none You must give immunity to one HouseGuest. Brian You must nominate two HouseGuests. Andrea, 5 Giuliano You must nominate two HouseGuests. Lourdes,Sandra You must give immunity to one HouseGuest. Chiara You must evict one HouseGuest that is either nominated or not.(Note: The HouseGuest that is evicted must decide to either remain evicted or go into hiding and return to the house at the next eviction gala.) Brian 6 You must nominate two HouseGuests. Sandra,Brian Choose one HouseGuest to have their votes count as doubled. Chiara Choose one HouseGuest to have only one vote during nominations. Lourdes 7 Giuliano You must nominate two HouseGuests. ,Brian Choose three HouseGuests to have the power to nominate three HouseGuests for eviction. ,Sofía,Ulises 8 You must nominate two HouseGuests Giuliano, You must ban one HouseGuest to compete in next weeks Head of Household competition. 10 Claudio You must nominate one HouseGuest. Your vote will count as doubled. none 11 Lourdes You must nominate two HouseGuests. (Note: The HoH must choose one original HouseGuest & one new HouseGuest to nominate.) Luz,Selva 12 Sandra Out of the 10 HouseGuests who were not safe, you must choose three HouseGuests to compete in a trivia challenge for safety. Luciana,Katia, 13 Chiara You must nominate two HouseGuests. ,Katia Your vote will count as doubled. none 15 Claudio You must nominate two HouseGuests. Marcelo,Ulises 16 Juliana You must nominate one HouseGuest. Chiara 17 Ulises You must nominate one HouseGuest. Lourdes You must give a HouseGuest two extra points to use during Nominations. Chiara 19 You must nominate one HouseGuest. Ulises 20 GabrielaCatalina You must nominate one HouseGuest. LuzLuz 24 Santiago A. You must give a HouseGuest two extra points to use during Nominations. Luz 25 Ulises You must choose one HouseGuest to have dinner with you. (Note: The HoH and the individual who is chosen will watch all the nominations.) Eugenia 27 You must give a HouseGuest two extra points to use during Nominations. Eugenia
The voided votes From week 2 onwards, the last evicted HouseGuest has the power to void any of the remaining HouseGuests' votes before they nominate in the Nominations Gala.
The Kiosk This season, Gran Hermano installed a kiosk where HouseGuests use for special prizes every week.
Red Phone Starting in Week 6, Gran Hermano enabled the red phone. Whoever answered the phone would receive positive or negative information. The HouseGuests must answer the phone without being able to repeat it during the day and if the phone is not answered before five rings the whole house would be punished. + Week Call Message Answered by Chosen 6 1 You can have a banquet with eight of your fellow HouseGuests or nominate two HouseGuests. (Note: Santiago A. chose to nominate two HouseGuests.) Sofía,Chiara 7 2 You must pick seven HouseGuests. (Note: The seven HouseGuests along with the person who answered the red phone will nominate face to face.) Chiara Sandra,Luz,Petrona,Claudio,,Carlos,Luciana 13 3 You must take three keys from the car challenge from four HouseGuests and give them to four other HouseGuests. Takes from: Chiara,,Katia,UlisesGives to: Luciana,Luz,Martina,Sandra 14 4 You must nominate two HouseGuests for eviction and give another HouseGuest the same power. (Note: The HouseGuests that are nominated are eligible to be saved by the Head of Household.) Nominates: ,LucianaNominator: LourdesNominates: ,Lorenzo 16 5 You must nominate one HouseGuest. (Note: Both the nominator and nominee will both have dinner alone.) Luciana Eugenia 18 6 You are the Head of Household. Gabriela none 21 7 You must choose two people (HouseGuest or visitor) to spend a night alone. Gabriella,Guillermo
Repechage
In Week 6, after Andrea walked from the game for health reasons, it was announced that a repechage would take place among the first seven evictees during Week 7. As Keila was ejected from the game, she was ineligible to take part in the repechage. In Week 9, it was announced that the second repechage would take place during Week 10. The second repechage had two stages with the three HouseGuests with the most votes from the public were eligible for re-entry. The HouseGuest with the most votes automatically returned to the house, while the HouseGuests who finished second and third faced a house vote for a final spot. As Keila was ejected and Andrea left for health reasons, they were both ineligible to take part in the second repechage, and Petrona (who was evicted in Week 9) declined to take part in the second repechage.
The Golden Ticket As a result of Luca's ejection on Day 85, it was announced on that same day that the Golden Ticket returned. It would give one person (from the previously evicted HouseGuests or contestants from previous seasons) a chance enter the house to replace Luca. On Day 87, it was announced that a second Golden Ticket would be given to another former HouseGuest out of the 32 former HouseGuests that chose to participate.
On Day 115, Juliana walked from the game and therefore another Golden Ticket was given to a former HouseGuest chosen by Gran Hermano. One day later, it was announced that Catalina Gorostidi (former season 11 HouseGuest) would return to the house.
HouseGuests A total of 24 HouseGuests moved into the house on Day 1 (2 December 2024), making it the season with the highest number of newcomers that join the house in the first episode. Former evicted HouseGuest Brian Alberto returned to the house on Day 35 (5 January 2025), and on Day 36 (6 January 2025) it was announced that new HouseGuest Katia Fenocchio would enter the house as a replacement. Other evicted HouseGuests Jenifer Lauría and Luca Figurelli returned to the house on Day 43 (13 January 2025) and Day 64 (3 February 2025), respectively.
Due to a repechage during Week 10, Renato Rossini, Giuliano Vaschetto and Delfina De Lellis re-entered the house on Days 65 (4 February), 67 (6 February) and 71 (10 February 2025), respectively, while another eight new HouseGuests (Eugenia Ruiz, Gabriela Gianatassio, Lorenzo De Zuani, Lucía Patrone, Marcelo Carro, Saif Al Sayedd, Santiago Larrivey and Selva Pérez) entered the house on Day 71 (10 February 2025). On Day 99 (10 March 2025), Claudio Di Lorenzo (previously walked from the house due to medical reasons) and Juliana Scaglione (former season 11 contestant) received the most votes and re-entered the house via Golden Ticket.
Name Age Occupation Residence Dayentered Dayexited Status 28 Influencer Montevideo, Uruguay 1 205 26 Political sciences licentiate Córdoba, Córdoba 1 205 22 Booking office employee San Salvador de Jujuy, Jujuy 1 205 44 Doctor Santiago del Estero, Santiago del Estero 71 204 51 Housewife Montevideo, Uruguay 71 199 38 Architect Corrientes, Corrientes 1 197 32 Delivery worker La Matanza, Buenos Aires 36 190 50 Fisherwoman La Plata, Buenos Aires 1 183 22 Model Mar del Plata, Buenos Aires 1 176 18 Model Villa Devoto, Buenos Aires 71 169 28 Medical student Torres, Brazil 71 161 30 Model Canning, Buenos Aires 1 155 32 Pediatrician Santa Fe, Santa Fe 116 140 24 Accountant La Plata, Buenos Aires 1 133 41 Reiki practitioner Flores, Buenos Aires 1 70 99 126 33 Accountant La Plata, Buenos Aires 71 120 34 Sportswoman Belgrano, Buenos Aires 99 115 32 Dance teacher Pico Truncado, Santa Cruz 1 113 23 Industrial design student Salta, Salta 71 105 34 Logistics manager Lanús, Buenos Aires 71 105 27Marketing studentLima, Perú 1 14 65 92 18Football playerBerazategui, Buenos Aires 1 35 64 85 18ModelSáenz Peña, Buenos Aires 1 8 71 84 20 Dentistry student Cairo, Egypt 71 84 28HawkerSan Miguel, Buenos Aires 1 32 35 77 33SalesmanVenado Tuerto, Santa Fe 1 56 67 70 32Trade union employeeCanning, Buenos Aires 1 21 43 67 32 Ridehailing service driver Villa Urquiza, Buenos Aires 1 63 53 Nurse San Miguel de Tucumán, Tucumán 1 59 63 Football coach Ituzaingó, Buenos Aires 1 49 23 Engineering student San Rafael, Mendoza 1 42 42 Gymnastics teacher San Cristóbal, Buenos Aires 1 38 28 Unemployed Tigre, Buenos Aires 1 32 24 Tennis instructor Ramos Mejía, Buenos Aires 1 28 24 Teacher Villa Luzuriaga, Buenos Aires 1 28
Relatives On Day 141 (22 April 2025), relatives from each one of the twelve remaining HouseGuests that were in competition at the time entered the house.
Name Age Occupation Relationship Dayentered Dayexited Status 37 Actor Selva's friend 141 154 40 Plastic surgeon Eugenia's sister 141 151 25 Digital marketing Luz's boyfriend 141 150 30 Online community manager friend 141 149 18 Football player Chiara's brother 141 148 27 Unemployed Ulises's friend 141 147 41 Entrepreneur sister 141 147 48 Fisherman Sandra's husband 141 147 40 Unemployed Katia's cousin 141 146 33 Unemployed Gabriela's brother 141 144 54 Housewife Lourdes's mother 141 143 47 Housewife Lucía's mother 141 143
Episodes
Voting history
HouseGuests nominate for two and one points, shown in descending order in the nomination box. The four or more HouseGuests with the most nomination points face the public vote.
HouseGuests can also use the Diary Room's Special Nomination, which gives three and two points instead.
From week 2 onwards, the last evicted HouseGuest has the power to void any one's nominations before they nominate in the Nominations Gala.
Starting in Week 23, the Power Nomination (fulminante in Spanish) was enabled by Gran Hermano, which consists of the automatic nomination of a HouseGuest, without the ability to be saved by the Head of Household. It could only be used once by each HouseGuest throughout those weeks. HouseGuests that use the Power Nomination are marked in bold.
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