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Jito Bundles is integrated into Jito’s validator client and block engine, which processes bundles directly and gives them priority based on user‑supplied tips — small SOL payments included to incentivize validators to include the bundle in a block ahead of regular transactions. Higher tips can increase inclusion likelihood, which is especially valuable when network demand is high.

Bundles solve several real‑world Solana limitations. Individual transactions are atomic only at a single‑transaction level, and complex multi‑step operations often risk partial execution or failure due to compute unit limits or congestion. Jito Bundles let users coordinate multi‑transaction flows — such as arbitrage, liquidations, or batched DeFi actions — ensuring they all occur in one block in the intended order.

The system has become a foundational tool for MEV searchers, trading bots, and developers looking to mitigate front‑running and execution risk by bypassing the public mempool and guaranteeing ordered execution directly through Jito’s clients. Because the feature depends on leaders running Jito‑enabled validators, bundle inclusion is tied to when those validators are producing blocks, but Jito holds a large portion of stake weight on Solana, making the feature broadly available.