Ultra Swap V3

Ultra V3 represents the culmination of months of infrastructure work, algorithm optimization, and real-world testing under production load. This release fundamentally changes how we approach swap execution, with measurable improvements across every aspect that matters:

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Sub-Second Transaction Landing

IronJup is Jupiter’s proprietary transaction landing infrastructure, designed for measurable improvements in both speed and reliability.

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Transaction Landing Latency

Transaction landing latency has improved by 50–66% compared with our previous approach that relied on multiple providers.

Method	Blocks	Latency
IronJup	0-1 block	~ 50ms - 400ms
Traditional methods	1-3 blocks	~ 400ms - 1.2s

Every block your transaction waits is an exposure to poorer execution quality, such as market movement against your position, increased effective slippage, and a higher risk of MEV extraction opportunities. With IronJup we now leverage our own validator stake and dedicated R&D efforts, IronJup consistently processes transactions within 50–400 ms and by operating entirely on our own infrastructure instead of relying on external providers, we eliminate the risk of artificial delays and front-running, ensuring faster and more secure execution for our users.

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MEV Protection

IronJup routes transactions through our own infrastructure, providing:

• Complete transaction privacy until on-chain execution.
• Reduce frontrunning exposure - transactions are invisible to public mempool scanners.
• Reduce risk of sandwich attack vectors - see sandwiched.me for MEV analytics.

Sandwiched.me Chart: Swap Volume versus Value Extracted

Jupiter Ultra’s swap volume to value extracted ratio is significantly lower than others despite higher volume, demonstrating the effectiveness of our efforts to bring the best execution quality to our users.This redundancy ensures optimal performance even when individual methods experience degraded service, contributing to our 96% success rate.

Source: Sandwiched.meOct 15, 2025

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Just-In-Time Quote Simulation

A problem that is often overlooked is the lack of comparison between Quoted Price versus Executed Price. When a quote is provided, it does not necessarily represent the actual executable price and quality.

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Executed Price versus Quoted Price

In today’s Solana DeFi landscape dominated by proprietary AMMs, these two numbers are increasingly divergent. Consider this scenario:

Route	Quoted Amount	Executed Amount	Slippage (Amount)	Slippage (%)
Route A (Traditional AMM)	100 tokens	80 tokens	20 tokens	20%
Route B (Prop AMM)	150 tokens	50 tokens	100 tokens	66%

Route B shows a 50% better quote, but Route A delivers 60% more tokens to your wallet. This is why quote comparison between platforms is fundamentally misleading - but we have made significant improvements to our routing engine to ensure that the provided quotes have verifiable executable prices.

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Verifiable Executable Price

Ultra V3 introduces Just-In-Time Simulation for every quote returned by every router we aggregate. How it works:

1. Aggregated routers return their best quotes.
2. Ultra performs on-chain simulation of each route before returning quotes to users.
3. Simulations verify actual executable price vs quoted price.
4. Routes are ranked by simulated outcome, not just quoted price.

Impact: Users receive quotes that reflect actual on-chain execution, not theoretical best-case scenarios. This shift from quote-optimized to execution-optimized routing is responsible for our swap success rate improvement from 85% to ~96%.

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Just-In-Time Market Revival

Ultra V3 solves a long-standing technical limitation which is to provide routes for tokens that have “fallen out of favor” - When markets are have low liquidity or yet to graduate for a long time, we downgrade these markets to optimize resource allocation. This makes them unroutable, preventing users to enter or exit their positions. To address this, we have implemented a Just-In-Time market Revival Mechanism that dynamically re-indexes token markets on-demand.

• Routes virtually any token on Solana, including extremely long-tail assets.
• Supports old, inactive tokens that historically failed to route.
• Essentially, no minimum liquidity threshold for token eligibility.

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Pre-Graduation Routing Latency Reduction

To further enhance the trading experience for trenchers, we have optimized the routing logic for all pre-graduated bonding curve markets by skipping multi-route aggregation to reduce the quote latency by 90%+:

	Average Quote Latency	Routing Method
Before	200ms	Checking multiple potential routes
After	10-15ms	Direct routing to pre-graduated markets

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Slippage Optimization

Since the inception of RTSE (Real-Time Slippage Estimator), we have made strides to improve the slippage protection for our users. With Ultra V3, we have implemented the following improvements:

• Reduced RTSE slippage set while maintaining high success rates.
• Automatic prioritization of slippage-protected routes over purely price-optimized routes.
• Increased volatility sensitivity for tokens with high historical volatility patterns.

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Gasless Support Coverage

With Ultra V3, we have expanded gasless support coverage to Token2022 tokens, memecoin-to-memecoin swaps (when liquidity permits), and reduced minimum trade size to ~$10 USD. We will continue to improve this over time.

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Jupiter Ultra Fee Structure

We have the best quoting, routing, and execution infrastructure, yet Jupiter Ultra fee remains competitive and transparent.

Provider	Fee (bps)	Example Fee on $10,000 Trade	Notes
Jupiter Ultra	0 - 10	$0 – $10	10x cheaper
Competitors	At least 85 - 100 (≥ 1%)	$85 – $100	Typically at least 1%; costs compound over time

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Summary

Ultra is more than just a swap - it’s an abstraction layer over the challenges of execution and blockchain complexity: For end users: No need to understand slippage settings, gas fees, RPC selection, or MEV protection. Ultra handles everything. For developers: The exact same Ultra infrastructure that powers jup.ag’s UI is also available to developers via API. No need to build, host, or maintain your own RPC, transaction landing infrastructure and manage other trading optimizations. For more information, please refer to the Ultra Swap Docs. Ultra V3 demonstrates that the best execution isn’t about finding the best quote - it’s about delivering the best outcome. Through rigorous measurement, continuous optimization, and proprietary infrastructure, we’ve built a system that consistently outperforms on the metrics that actually matter - the data speaks for itself.