In Genshin Impact, 5-star characters and weapons are considered rare and highly desirable. “50/50” is a term used by players to refer to the probability of obtaining a 5-star character or weapon from a specific banner or wish. Here’s how to understand and calculate your chances of getting a 5-star character or weapon in Genshin Impact:

Each time a player makes a wish in the game, they have a certain probability of obtaining a 5-star character or weapon. The default probability is 0.6% for a 5-star character, and 0.6% for a 5-star weapon. However, the probability can be increased if the player makes a certain number of wishes without obtaining a 5-star.
The probability of obtaining a 5-star character or weapon is calculated independently for each wish made by the player. This means that the probability does not increase the longer a player goes without obtaining a 5-star, but rather remains the same for each individual wish.
Now, let’s get to the “50/50” part. When a player makes a wish on a banner for a 5-star character or weapon, they have a 50% chance of obtaining the featured character or weapon, and a 50% chance of obtaining a different 5-star character or weapon. This means that the probability of obtaining the featured character or weapon is the same as the probability of obtaining any other 5-star character or weapon in the banner, which is 0.6%.
To understand how the “50/50” works, we can use an example. Let’s say a player makes 90 wishes on a banner that features a 5-star character they want. They have not obtained a 5-star character in any of their previous wishes. At this point, the probability of obtaining a 5-star character in their next wish is increased to 100%, since the pity system guarantees a 5-star after 90 wishes. However, the player still has a 50/50 chance of obtaining the featured character or weapon.
If the player gets lucky and obtains the featured character or weapon on their 91st wish, then they have a 100% chance of obtaining the featured character or weapon on their 180th wish. However, if they obtain a different 5-star character or weapon on their 91st wish, then their probability of obtaining the featured character or weapon remains at 0.6% for each subsequent wish until they obtain a 5-star character or weapon.
In summary, the “50/50” refers to the probability of obtaining a featured 5-star character or weapon in Genshin Impact. When a player makes a wish on a banner, they have a 50% chance of obtaining the featured character or weapon, and a 50% chance of obtaining a different 5-star character or weapon. The probability of obtaining a 5-star character or weapon is calculated independently for each wish, and is not affected by the number of wishes made or the number of wishes that did not result in a 5-star.