What is Sui (SUI) crypto?
Sui (SUI) fact sheet with live price · reviewed November 4, 2026
Sui is a fast proof-of-stake blockchain for smart contracts that launched in May 2023. It was built by Mysten Labs, a company founded by former Meta engineers who worked on the Diem payments project. Its coin, SUI, pays fees and is staked to secure the network, and its total supply is capped at 10 billion.
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Key facts
| Launched | May 3, 2023 |
|---|---|
| Created by | Mysten Labs (Evan Cheng, Adeniyi Abiodun, Sam Blackshear, George Danezis, Kostas Chalkias) |
| How it's secured | Delegated proof of stake |
| Maximum supply | 10 billion SUI; a large share is still being released on a schedule |
| Programming language | Move |
| Finality | Usually under a second |
Who runs it
About 100–150 validators run the network, with stake delegated by SUI holders. Mysten Labs develops the core software and the Sui Foundation funds the ecosystem; both, along with early investors, hold large amounts of SUI.
What it's used for
Trading and lending apps, games, stablecoin payments and other apps that need many fast, cheap transactions.
How it works
Sui treats everything as "objects" owned by addresses. Simple transfers of objects owned by one person can be confirmed without global ordering, which makes them fast; transactions touching shared objects go through Sui's consensus protocol, Mysticeti. Apps are written in Move, a language designed to make certain asset bugs harder.
Where things stand (November 2026)
Sui has had several outages: about two hours in November 2024, nearly six hours in January 2026 and further stalls in May 2026, all without loss of funds. In May 2025 the Cetus exchange on Sui was exploited for about $223 million; validators froze about $162 million of it and a community vote returned those funds to users. That helped victims but showed that validators can coordinate to block transactions.
Risks to know
- Repeated outages show the network is still young.
- Validators coordinated to freeze stolen funds in 2025, which shows a degree of centralization some users don't expect.
- Scheduled token unlocks add new SUI to the market.
- Apps on Sui can be exploited even when the network works.
- Price is volatile.
Buying and storing it
If you decide to buy, use a regulated exchange you reach directly, check fees with the true cost calculator, and store long-term holdings in a wallet you control, with the seed phrase written down offline. Read how to buy crypto safely. This page isn't a recommendation to buy.
Questions
Who created Sui?
Mysten Labs, founded by former Meta engineers from the Diem and Novi projects.
Is Sui the same as Aptos?
No. Both use the Move language and came out of Meta's Diem work, but they're separate networks, companies and coins.
Can I stake SUI?
Yes, by delegating to a validator in a Sui wallet.
Where to next
Sources
- Sui documentation
- Sui network goes down for hours, months after last downtime (Decrypt)
- Sui community passes vote to recover Cetus funds frozen by validators (The Block, May 2025)
- Sui validators freeze majority of stolen funds in Cetus hack (Cointelegraph)
Facts checked against the sources listed, as of November 4, 2026. Live price data by CoinGecko. Educational only; not financial advice. How we write and check pages.