Uniswap v4 vs Curve: Which AMM Wins on Fees & Slippage?
Uniswap v4 vs Curve Finance compared for AMM fees and slippage in 2026 — StableSwap vs CLMM, liquidity depth, hook architecture, stablecoin swaps, impermanent loss, and which DEX to use.
Quick Answer
Curve wins for stablecoin and like-asset swaps (USDC/USDT, stETH/ETH) — its StableSwap invariant delivers 10–100x less slippage than Uniswap v3/v4 for near-peg assets. Uniswap v4 wins for general token swaps, long-tail assets, and developer flexibility via custom hooks. Choose by asset type: Curve for pegged pairs, Uniswap v4 for everything else.
Uniswap v4 vs Curve Finance: Overview
General ERC-20 swaps, long-tail tokens, programmable liquidity with custom hooks
No subscription (protocol fees apply per swap)
Pool fee tiers: 0.01%, 0.05%, 0.3%, 1% (+ hook fees if applicable)
Stablecoin swaps, LST pairs (stETH/ETH), cross-chain stablecoin routing
No subscription (0.04% base swap fee on most pools)
Base fee: 0.04% (stable pools), up to 0.1% (crypto pools); admin fee portion to CRV stakers
Uniswap v4 vs Curve Finance: Feature Comparison
| Feature | Uniswap v4 | Curve Finance |
|---|---|---|
| USDC→USDT Slippage ($1M) | ~0.3–0.5% | <0.01% |
| Long-tail Token Support | Excellent | Poor (stable pairs only) |
| Base Swap Fee | 0.01%–1% (tier-based) | 0.04% (stable pools) |
| Custom Pool Logic | Yes (hooks architecture) | Limited (factory pools) |
| LP Impermanent Loss (stable pairs) | High (CLMM) | Very low (StableSwap) |
| DEX Aggregator Routing | Always included (highest liquidity) | Included for stable routes |
Pros & Cons
Uniswap v4
Pros
- Hooks architecture: custom smart contract hooks on beforeSwap, afterSwap, beforeAddLiquidity — enables limit orders, TWAMM, dynamic fees
- Singleton contract: all pools in one contract — lower gas for multi-hop swaps
- Flash accounting: ERC-6909 transient storage — gas-efficient multi-call batching
- Universal Router: single transaction for complex swap paths across v2, v3, v4 pools
- Largest liquidity: highest TVL of any DEX for long-tail ERC-20 pairs
Cons
- Stablecoin slippage: x*y=k invariant has high slippage near peg — 10x worse than Curve for USDC/USDT at large volumes
- LP impermanent loss: CLMM LPs face high IL in trending markets — requires active rebalancing
- Hook complexity: building custom hooks requires Solidity expertise and rigorous security auditing
- Gas costs: v4 hooks add gas overhead for complex pool configurations
Curve Finance
Pros
- StableSwap invariant: purpose-built for near-peg assets — 10–100x less slippage than Uniswap for stablecoins
- Lowest fees for stablecoins: 0.04% base fee vs Uniswap's 0.05% minimum — matters for high-volume swaps
- Multi-pool routing: 3pool (USDC/USDT/DAI), tricrypto, tricryptoUSD — deep aggregated liquidity
- veTokenomics: vote-escrowed CRV for gauge weight control — lucrative LP incentive system for large liquidity providers
- crvUSD: Curve's native stablecoin (LLAMMA mechanism) adds DEX + lending integration
Cons
- Limited to pegged/correlated pairs: poorly suited for general token swaps — thin liquidity for non-stable pairs
- Complex UI: pool selection and gauge voting are intimidating for casual users
- Smart contract complexity: Curve's AMM math is significantly more complex than Uniswap — higher audit surface area
- Governance capture risk: large CRV holders influence gauge weights, potentially directing liquidity rewards sub-optimally
Our Verdict: Uniswap v4 vs Curve Finance
The DEX you use should match your asset type, not brand loyalty. For stablecoin-to-stablecoin and LST-to-base-asset swaps above $10,000, always check Curve first — the slippage difference is significant at scale. For general-purpose ERC-20 swaps, Uniswap v4 has deeper liquidity and better routing. In practice, DEX aggregators (1inch, Paraswap, CoW Swap) route automatically between Uniswap and Curve based on price impact — use an aggregator for any swap above $1,000 rather than choosing manually.
Uniswap v4 vs Curve Finance — FAQs
What are Uniswap v4 hooks?
Hooks are smart contracts that attach to a Uniswap v4 liquidity pool and execute custom logic at specific lifecycle events: before/after swap, before/after adding/removing liquidity, before/after initialize. This enables: limit orders (execute when price reaches a level), TWAMM (time-weighted average market maker for large block trades), dynamic fees (adjust fee based on volatility), and custom oracle integrations. Hooks are the biggest architectural change in v4 and position Uniswap as a programmable liquidity protocol, not just an AMM.
What is the Curve Wars?
The "Curve Wars" refers to competition among DeFi protocols to accumulate veCRV (vote-escrowed CRV tokens) in order to control Curve gauge weights — which determine how much CRV inflation is directed to each liquidity pool. Protocols like Convex Finance, Yearn, and Frax competed to bribe veCRV holders to point gauge weights to their preferred pools, boosting LP rewards and attracting liquidity. The wars peaked in 2022 and have stabilized; veTokenomics mechanisms have since been adopted by other DeFi protocols.
Is CoW Swap better than using Uniswap or Curve directly?
For most users, yes. CoW Protocol (Coincidence of Wants) finds peer-to-peer settlement between users who want to swap in opposite directions — when Alice wants to sell ETH for USDC and Bob wants to sell USDC for ETH, CoW matches them directly with zero AMM fees. Unmatched orders route to AMMs (Uniswap, Curve, Balancer) with MEV protection. CoW Swap consistently achieves better execution than direct AMM interaction due to batch auction settlement and MEV resistance. The tradeoff: slightly longer settlement time (30–60 seconds vs instant AMM).
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