Sui — Object-Centric Move L1 with Sub-Second Finality
Sui is a high-throughput Layer 1 launched on 2023-05-03 by Mysten Labs alumni from Meta's Diem project. It pairs the object-centric Sui Move VM with Mysticeti, a DAG-based BFT consensus activated on mainnet on 2024-07-25 that pushed end-to-end finality to 0.64 seconds. With $434.58M in TVL and a Lending-heavy stack (NAVI, Suilend, AlphaFi together holding ~$285M), Sui is one of two live general-purpose Move-language L1s, sharing the language with Aptos and competing for Solana's high-speed L1 mindshare.
Sui targets developers who want parallel execution without rewriting application logic around global state contention. Every asset on Sui — coins, NFTs, liquidity positions — is a first-class Move object with an explicit owner and version. Transactions touching only owned objects skip the consensus path entirely and reach finality through a fastpath, which is why Sui sustains 1,500 TPS in production while reserving up to ~297,000 TPS in theoretical headroom from the Mysticeti DAG. For traders and protocols, the practical impact is a 0.64-second finality window — roughly 20x faster than Solana's 12.8s economic finality and on par with Aptos at 0.65s — which collapses bridge confirmation waits and lets order-book DEXs like DeepBook V3 quote like centralized venues. AllSwap routes non-custodial cross-chain swap flows into and out of Sui by treating SUI and its Move-object stablecoins as native settlement legs, so users tapping NAVI Lending, Suilend, or SpringSui liquid staking can rebalance from Ethereum, BSC, or Solana without leaving the intent-based router. The chain serves three audiences: Move developers building parallel-execution dApps, DeFi users hunting Move-native lending yield, and infrastructure teams who need sub-second confirmation primitives for game, RWA, or perp settlement.
About Sui
Sui was built by Mysten Labs, a team of engineers who previously led the Novi and Diem (formerly Libra) projects inside Meta before exiting in 2022. Mainnet launched on 2023-05-03, roughly seven months after Aptos — its sister Move chain — went live, which set up an immediate head-to-head between two opinionated takes on the same Move language inherited from Diem. Where Aptos kept Move closer to its account-based Diem roots, Sui rewrote the object model: every value on chain is a typed Move object with a unique ID, an owner, and a monotonically increasing version. That single design choice is the genesis story of every performance and developer-experience claim Sui makes today.
Consensus on Sui has evolved twice in two years. The 2023 launch shipped with Narwhal + Bullshark — a separation-of-concerns design where Narwhal handles data availability through a DAG mempool and Bullshark orders transactions on top. On 2024-07-25 Sui activated Mysticeti, a streamlined DAG-based BFT protocol that collapses block proposal, certification, and ordering into a single uncertified DAG, cutting the consensus round-trips Bullshark needed. The measurable result is the 0.64-second finality the chain advertises today, down from roughly 2-3 seconds under the Narwhal+Bullshark stack. Mysticeti is a research-backed protocol authored by Mysten engineers including Alberto Sonnino and George Danezis, and it has since influenced consensus proposals across the high-speed L1 category.
Sui's economic design pivots on the SUI token serving three roles: gas, staking collateral for validators, and a storage-fund deposit that subsidizes long-lived on-chain state. Storage fees are not burned — they accrue into a rebate pool, so deleting unused objects refunds part of the original storage cost. Validator set churn and stake delegation follow standard delegated PoS mechanics, but the protocol enforces a hard rule that owned-object transactions never block on global consensus, only shared-object transactions do. That economic separation between fastpath and consensus path is what lets the chain quote 1,500 typical TPS while keeping decentralization through the full Mysticeti validator set.
The current ecosystem composition reflects how capital actually behaves on Sui. Of $434.58M in TVL, the top three protocols by TVL are all lending markets — NAVI Lending ($122.99M), Suilend ($105.99M), and AlphaFi Lending ($56.77M) — together holding ~66% of all on-chain value. Liquid staking is the second pillar, anchored by SpringSui ($43.78M) and Haedal Protocol ($28.45M). Spot DEX TVL is comparatively thin — Bluefin Spot at $16.27M and DeepBook V3 at $15.60M — which signals Sui has grown into a yield-and-leverage chain first, with order-book trading following. The pattern differs sharply from Solana, where DEX TVL dominates lending.
Sui technical parameters
Sui's technical stack is built around one bet: most real-world transactions touch objects that have a single owner, so the consensus round-trip you pay on Ethereum or even Solana is overhead you can skip. Mysticeti consensus, the Sui Move VM, and the object-centric token standard are three layers of that same bet, and the 0.64-second finality number is the result of all three lining up. Block time runs at 0.4 seconds, with end-to-end finality at 0.64 seconds in production.
| Consensus | Mysticeti (DAG-based BFT, PoS) — replaced Narwhal+Bullshark in 2024 |
|---|---|
| VM | Sui Move VM |
| Block time | 400 ms |
| Finality | 640 ms |
| TPS | 1.5k typical / 297k max |
| Gas token | SUI |
| Launched | 2023-05-03 |
| Token standard | Sui Move Objects (Coin / NFT) |
| Address | hex (32-byte, 0x-prefixed) |
Consensus mechanism
Mysticeti is a DAG-based Byzantine Fault Tolerant protocol that replaced the Narwhal + Bullshark pipeline in July 2024. The plain-language version is this: validators don't propose blocks one at a time and vote round-by-round the way classical BFT (or even Tower BFT on Solana) does. Instead, every validator continuously appends blocks to a directed acyclic graph, and each new block implicitly references everything previously seen. Finality emerges from quorum coverage across the DAG rather than from a leader-driven voting round, which removes the leader-bottleneck latency that classical BFT pays. In practice this means the 0.64-second finality is not a probabilistic 'most likely confirmed' window like Bitcoin's six confirmations — it is deterministic economic finality, the point at which the transaction cannot be reverted without slashing two-thirds of stake. For applications, that maps to two useful properties: fastpath owned-object transactions (sending SUI, minting an NFT to yourself, signing a swap order) bypass consensus entirely and confirm in sub-second time, while shared-object transactions (DEX swaps touching a pool, lending position updates) go through Mysticeti and land in the full 0.64s envelope.
Performance context
The 1,500 typical TPS figure deserves context. It is not the maximum the chain can hit — Mysticeti's published headroom is around 297,000 TPS in theoretical benchmarks — but it is what the live mainnet actually sustains under real load, which is a more honest number than peak marketing TPS. For comparison, Solana sustains around 3,000 TPS in real production despite the famous 65,000 max-theoretical figure, Aptos sits at 800 typical, and Ethereum is stuck at 15 TPS. On finality, Sui's 0.64s effectively ties Aptos (0.65s) and beats Solana's 12.8s economic finality by roughly 20x. The practical takeaway: Sui is not chasing the same TPS theatre as Solana — it is optimizing for finality determinism, which matters more for bridge confirmations, perp settlement, and any cross-chain swap flow that needs to know a leg has cleared before sending the next.
Sui ecosystem map
Sui's $434.58M TVL skews heavily toward credit and staking rather than spot trading — a pattern that distinguishes it from Solana (DEX-heavy) and aligns it loosely with the early Aptos stack. Six of the top eight protocols by TVL are Lending or Liquid Staking primitives; only two are DEXs. This composition shapes which integrations matter and where AllSwap routes liquidity.
Lending
NAVI Lending leads the chain at $122.99M TVL, making it the single largest protocol on Sui and the de facto money market for SUI, USDC, and Sui-native liquid staking tokens. Its dominance reflects how leverage demand has consolidated rather than fragmented across Sui's lending market.
Lending
Suilend ($105.99M) is the second-largest lending venue, modeled loosely after Solend on Solana but rebuilt around Sui Move's object model. The combined NAVI + Suilend footprint of ~$229M means roughly 53% of all Sui TVL sits in two lending markets — a concentration risk users should price in.
Lending
AlphaFi Lending ($56.77M) rounds out the top-three lending stack and adds a third independent venue, which matters for liquidation routing and rate dispersion. Together the three lending protocols hold ~$285M, or roughly 66% of Sui's entire on-chain economy.
Infrastructure
SpringSui ($43.78M) is the dominant liquid staking token (LST) provider, issuing sSUI as a yield-bearing wrapper around staked SUI. LSTs are the collateral feedstock for the lending markets above, so SpringSui sits upstream of NAVI and Suilend in the dependency graph.
DEX
Bluefin Spot ($16.27M) and DeepBook V3 ($15.60M) anchor on-chain trading. DeepBook is notable because it is a true central-limit-order-book (CLOB) DEX — feasible on Sui specifically because 0.64s finality lets makers refresh quotes at near-CEX cadence, something Ethereum L1 cannot support without L2 batching.
Wallet
Wallet coverage spans the native Sui Wallet, Suiet, Ethos, Martian (also serving Aptos), Phantom (multi-chain since 2024), and Ledger hardware support. Phantom's inclusion is significant — it gives Sui the same wallet onboarding surface as Solana for cross-chain swap users moving between SVM and Move ecosystems.
| # | Protocol | Category | TVL |
|---|---|---|---|
| 1 | NAVI Lending | Lending | $123.00M |
| 2 | Suilend | Lending | $105.99M |
| 3 | AlphaFi Lending | Lending | $56.77M |
| 4 | SpringSui | Liquid Staking | $43.78M |
| 5 | Bucket Farm | Farm | $37.98M |
| 6 | Haedal Protocol | Liquid Staking | $28.45M |
| 7 | Bluefin Spot | Dexs | $16.27M |
| 8 | DeepBook V3 | Dexs | $15.60M |
Sui vs peers
Sui competes inside the '高速 L1' category against Solana, Aptos, Monad, Berachain, Hyperliquid L1, TON, and Near. Among this peer set, two comparisons matter most: Sui vs Solana (the incumbent high-speed L1) and Sui vs Aptos (the sister Move chain). The data below uses live TVL and on-chain performance numbers from the comparison dataset.
| Chain | Block | Finality | TPS | TVL |
|---|---|---|---|---|
| Solana | 400 ms | 12.8 s | 3k | $4.71B |
| Aptos | 150 ms | 650 ms | 800 | $191.04M |
| Suicurrent | 400 ms | 640 ms | 1.5k | $434.58M |
| Monad | 400 ms | 1 s | — | $348.38M |
| Berachain | 2 s | 2 s | — | $55.48M |
| Hyperliquid L1 | 70 ms | 70 ms | — | $1.51B |
| TON | 400 ms | 1 s | 17 | $67.06M |
| Near | 600 ms | 1.2 s | 60 | $141.47M |
Comparison insights
- Sui vs Solana on finality: Sui's 0.64s economic finality is roughly 20x faster than Solana's 12.8s, despite both chains hitting the same 0.4s block time. The gap comes from consensus design — Mysticeti's DAG produces deterministic finality per block, while Solana's Tower BFT requires roughly 32 slot confirmations for economic finality. For cross-chain swap routing, this means a Sui leg can be safely chained into the next hop in under a second, while a Solana leg still needs a multi-second waiting window.
- Sui vs Aptos on the Move bet: both chains use Move and both run BFT consensus, but the engineering choices diverge sharply. Aptos preserved Move's account-based model (similar to EVM accounts), runs at 0.15s block time / 0.65s finality, and sustains 800 typical TPS. Sui rewrote Move to be object-centric, runs at 0.4s blocks / 0.64s finality, and sustains 1,500 typical TPS. TVL crowns Sui as the leader of the Move pair at $434.58M vs Aptos's $191.04M — roughly 2.3x ahead.
- Sui vs the high-throughput cohort on TVL: at $434.58M, Sui ranks third in the high-speed L1 category behind Hyperliquid L1 ($1.51B) and Solana ($4.71B), but ahead of Monad ($348.38M), Aptos ($191.04M), Near ($141.47M), TON ($67.06M), and Berachain ($55.48M). Sui's TVL is roughly 10.8x smaller than Solana's, which sets the realistic ceiling for how much liquidity a single Sui-based protocol can attract today.
- Sui vs Monad on roadmap timing: Monad launched mainnet on 2025-11-24 — about 2.5 years after Sui — with bytecode-compatible EVM and a 1-second finality target. Monad's bet is that EVM compatibility will pull liquidity faster than Move's technical superiority can build it. Sui's response is the maturity advantage: a working 0.64s finality, three active lending markets, and two LST providers that Monad does not yet have at comparable depth.
- Sui vs Hyperliquid L1 on use-case framing: Hyperliquid's $1.51B TVL is overwhelmingly perp-DEX deposits routed through a specialized HyperCore VM, while Sui's $434.58M is general-purpose DeFi (lending + LST + spot DEX). The two chains are not interchangeable competitors — Hyperliquid wins for perps, Sui wins for the broader Move-developer surface and general-purpose smart contracts.
Sui timeline
Sui's history is short but eventful. Mysten Labs spun out of Meta in 2021 after the Diem stablecoin project was wound down, and the team — led by former Novi engineers Evan Cheng, Sam Blackshear, Adeniyi Abiodun, and George Danezis — raised an early $36M Series A in December 2021 followed by a $300M Series B in September 2022 at a reported $2B valuation. Mainnet launched on 2023-05-03 with Narwhal + Bullshark consensus, an object-centric Move VM, and an aggressive performance target. The launch was relatively smooth on the technical side but controversial on the tokenomics side: a CoinList community sale for SUI tokens drew regulatory complaints in some jurisdictions and exposed lockup details that disappointed early retail buyers. Over the following twelve months Sui shipped incremental upgrades to the consensus layer, the Move VM, and the wallet stack, while the developer community ported common DeFi primitives — first DEXs, then lending, then liquid staking. The single largest technical event in Sui's history landed on 2024-07-25, when Mysticeti consensus activated on mainnet, replacing the Narwhal + Bullshark pipeline and cutting finality from roughly 2-3 seconds down to the current 0.64 seconds. Mysticeti is research-backed (the paper authored by Mysten engineers including Alberto Sonnino and George Danezis) and the upgrade was executed without a chain halt — a non-trivial engineering accomplishment given Solana's well-documented outage history over the same period. Sui has not, to date, suffered a publicly reported consensus halt or a large-scale validator-level exploit, though individual protocol exploits (smaller lending protocols, NFT contracts) have occurred at the application layer as in every active DeFi ecosystem. The honest assessment: Sui has accumulated less than three years of mainnet uptime, so its operational track record is shorter than Solana, Ethereum, or BSC, and longer-tail tail risks have not yet been stress-tested through a full market cycle.
- 2023-05-03launchMainnet launch
- 2024-07-25upgradeMysticeti consensus activated on mainnet
Developer reference
For developers integrating Sui: the official RPC endpoint is https://fullnode.mainnet.sui.io:443 (HTTPS JSON-RPC), the canonical block explorer is suiscan.xyz (with SuiVision as a popular alternative), and the address format is a 32-byte hex string with a 0x prefix — same length as Ethereum but derived from Sui's Move-based key scheme, not ECDSA secp256k1 directly. The language stack is Sui Move, a fork of Diem Move with object-centric extensions; it is not source-compatible with Aptos Move despite shared heritage. Key SDKs are the official @mysten/sui TypeScript SDK, the Rust sui-sdk, and Python via pysui (community). The token standard is Sui Move Objects — Coin<T> for fungible tokens, structured Move objects for NFTs — which means standard ERC-20 / SPL token assumptions do not transfer; tokens are typed objects with owners, not balances in a global ledger. Wallets supported include Sui Wallet, Suiet, Ethos, Martian, Phantom, and Ledger. Full developer documentation lives at docs.sui.io.
Assets swappable on Sui
Grouped by category. Click any asset to open its swap page for a live quote.
Stablecoins
1 assets
Majors
1 assets
Sui settle-time comparison
Shorter bars mean faster confirmations. Real settle time also depends on network congestion — figures are indicative.
Sui asset coverage comparison
Longer bars mean more assets are swappable on that chain.
Popular swap routes involving Sui
Routes below reflect actual user preference. Click to jump straight to the swap page.
Sui FAQ
01What consensus mechanism does Sui use?
Sui uses Mysticeti, a DAG-based Byzantine Fault Tolerant Proof-of-Stake protocol activated on mainnet on 2024-07-25, replacing the original Narwhal + Bullshark stack. Mysticeti collapses block proposal, certification, and ordering into a single uncertified DAG, producing deterministic economic finality in 0.64 seconds rather than the multi-second windows older BFT designs need.
02How fast is Sui's finality and TPS in practice?
Sui's block time is 0.4 seconds and end-to-end finality is 0.64 seconds. Production sustained throughput is 1,500 transactions per second, with theoretical headroom up to ~297,000 TPS published in Mysticeti benchmarks. By comparison, Solana sustains ~3,000 TPS at 12.8s finality and Aptos sustains 800 TPS at 0.65s finality.
03Is Sui decentralized?
Sui runs delegated Proof-of-Stake with an open validator set, and SUI holders can stake to any validator. The Mysticeti consensus reaches finality with two-thirds honest stake, so safety holds as long as less than one-third of staked SUI is malicious. That said, Sui has fewer than three years of mainnet uptime and the validator set is smaller than Ethereum's, so the decentralization picture is still maturing relative to older chains.
04What is the largest protocol on Sui and how concentrated is the TVL?
NAVI Lending is the largest at $122.99M TVL, followed by Suilend at $105.99M and AlphaFi Lending at $56.77M. Together the top three lending protocols hold roughly $285M, or about 66% of Sui's total $434.58M TVL. The chain is heavily weighted toward lending and liquid staking rather than spot DEX activity, which is a meaningful concentration to factor in when assessing systemic risk.
05How does Sui differ from Aptos given they both use Move?
Both chains use Move and both run BFT Proof-of-Stake consensus, but the implementation choices diverge. Sui rewrote Move to be object-centric — every asset is a typed Move object with an owner and version — while Aptos kept Move closer to its account-based Diem roots. Sui sustains 1,500 TPS at 0.64s finality with $434.58M TVL; Aptos sustains 800 TPS at 0.65s finality with $191.04M TVL. Sui currently leads on both throughput and ecosystem depth among Move chains.