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DAI vs USDAI

Dai and USD.AI, compared on the things that decide whether you get your dollar back. Live data, updated continuously.

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30-day peg gap and DAI/USDAI spread

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DAI81Strong

The original decentralised dollar. Minted against overcollateralised vaults and stability modules, with all collateral verifiable on-chain.

Verdict band: Strong

USDAI68Adequate

USD.AI is a dollar-denominated token tracked across 3 chains. No verified issuer disclosure is on file, so its collateral and legal structure score conservatively.

Verdict band: Adequate

Sortable tradeoffs between DAI and USDAI
Safety scoreComposite of collateral, peg, liquidity, issuer and track record.●●●●●5 of 58168DAI
Collateral qualityWhat actually backs the token, and how liquid that backing is.●●●●●5 of 58455DAI
Exit liquidityWhether you can leave at size without moving the price.●●●●●5 of 5$295.92M$108.67MDAI
Issuer & legal standingRegulatory perimeter, disclosure quality and redemption rights.●●●●4 of 58248DAI
Peg tightness (live)Absolute distance from $1.00 right now — smaller is better.●●●●4 of 5+0.003%+0.039%DAI
Worst recorded depegHow badly the token has broken before, as a stress precedent.●●●●4 of 5-7.4%None recordedUSDAI
Track recordYears live and behaviour through past stress events.●●●●4 of 59753DAI
Scale / market capBigger float usually means broader venue support and tighter spreads.●●●3 of 5$4.80B$349.57MDAI
Chain reachNumber of networks where the token is natively deployed.●●●3 of 531 chains3 chainsDAI
Best available yieldUpside — but every extra point above T-bills is paid for with risk.●●2 of 54.71%10.92%USDAI

"Matters" is our weighting of how much each dimension typically drives a real allocation decision. Sort any column to re-rank the tradeoffs by what matters to you.

The short answer

DAI scores higher on safety (81 vs 68), driven mainly by collateral quality and disclosure. DAI has deeper tracked liquidity ($295.92M), which is what determines whether you can exit at size. USDAI currently earns up to 10.92% — remember that any rate above the T-bill yield is payment for a risk.

If both are fiat-reserve tokens, note that holding both is not diversification: they share the same short-dated Treasury and banking exposure. Genuine diversification means mixing collateral structures.

Which one fits your goal: DAI or USDAI?

Capital preservation over everything else.

For park cash safely, DAI is the better fit over USDAI.

  • Safety score 81 vs 68, with collateral rated 84/100.
  • Current peg deviation 0.003% against 0.039% for USDAI.
  • DAI has 2 recorded depeg event(s) — read them before sizing up.

Concentrating in one issuer is a single point of failure regardless of score. Split across collateral structures.

Key risks, side by side

DAI

  • Collateral volatility: a fast drawdown in backing assets can force liquidations.
  • Depeg history: 2 recorded event(s), worst deviation -7.40%.
  • Attestation cadence: onchain.
  • Yield venue risk: 4.71% is earned outside the token itself.
  • Chain concentration: 88% of supply sits on Ethereum.

USDAI

  • Collateral volatility: a fast drawdown in backing assets can force liquidations.
  • No depeg recorded in our incident log — absence of history is not a guarantee.
  • Limited public attestation of reserves.
  • Yield venue risk: 10.92% is earned outside the token itself.
  • Chain concentration: 100% of supply sits on Arbitrum.
DAI compared with USDAI
MetricDAIUSDAI
CategoryStablecoinStablecoin
IssuerSky (formerly MakerDAO)Undisclosed
JurisdictionDecentralised / Cayman foundationNot documented
Collateralcrypto-overcollateralizedcrypto-backed
Peg mechanismcrypto-backedcrypto-backed
Attestationonchainnone
Redemptiondirectmarket-only
Price$1.0000$1.0004
Peg deviation+0.003%+0.039%
Market cap$4.80B$349.57M
7d supply change−0.03%+64.76%
Liquidity$295.92M$108.67M
Best yield4.71% (flux-finance · Ethereum)10.92% (pendle-v2 · Arbitrum)
Chains313
Launched2017—
Worst recorded depeg−7.4%None recorded

Spread, peg gap and switching cost

Price spread (DAI vs USDAI)
-3.6 bps
$1.0000 vs $1.0004
Peg deviation gap
-0.036 pp
DAI +0.003% · USDAI +0.039%
Yield spread
-6.20%
DAI 4.71% · USDAI 10.92%
Liquidity ratio
2.72×
$295.92M vs $108.67M

A round trip between DAI and USDAI costs roughly the market spread plus venue fees. At 3.6 bps of price gap, swapping $1M implies about $363.83 of price impact before fees — usually only worth it if the peg gap or yield spread is durable, not intraday noise.

Historical context

Track record is the part of a stablecoin you cannot model — it has to be observed. Here is how DAI and USDAI have actually behaved since launch, including every stress event we have on record.

  1. DAI

    Dai goes live.

  2. DAI

    Single-collateral Dai launches on Ethereum.

  3. DAI

    Black Thursday: liquidation failures leave MakerDAO with bad debt.

  4. DAI

    Collateral mix tilts heavily toward USDC, importing centralised risk.

  5. DAI

    USDC contagion via PSM (worst deviation -7.4%).

Chain coverage

DAI is live on 31 chains, USDAI on 3. 2 chains carry both, so bridging is only unavoidable for the 30 networks where just one of them is deployed.

DAI and USDAI supply by chain
ChainDAIUSDAIBoth available
Ethereum logoEthereum$4.20B$166.2KYes
Polygon logoPolygon$465.19M—DAI only
Arbitrum logoArbitrum$16.85M$348.75MYes
Fantom logoFantom$35.12M—DAI only
BSC logoBSC$31.07M—DAI only
OP Mainnet logoOP Mainnet$13.62M—DAI only
PulseChain logoPulseChain$12.05M—DAI only
Avalanche logoAvalanche$11.23M—DAI only
Kaia logoKaia$7.98M—DAI only
Kava logoKava$1.89M—DAI only
Near logoNear$785.6K—DAI only
Plasma logoPlasma—$653.9KUSDAI only
Solana logoSolana$510.3K—DAI only
Starknet logoStarknet$373.9K—DAI only
Metis logoMetis$195.9K—DAI only
Boba logoBoba$143.0K—DAI only
ZKsync Era logoZKsync Era$106.8K—DAI only
Linea logoLinea$103.8K—DAI only
Astar logoAstar$91.4K—DAI only
Osmosis logoOsmosis$81.1K—DAI only

DAI vs USDAI: frequently asked questions

Is DAI or USDAI safer?

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On our composite safety score DAI rates 81/100 versus 68/100 for USDAI. The score weighs collateral quality (crypto-overcollateralized vs crypto-backed), redemption rights, attestation quality, peg history and liquidity depth. A higher score is not a guarantee: both remain issuer-credit and smart-contract exposures, not insured bank deposits.

What is the difference between DAI and USDAI?

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Dai is issued by Sky (formerly MakerDAO) (Decentralised / Cayman foundation), backed by crypto-overcollateralized, with redemption terms: direct. USD.AI is issued by Undisclosed (Not documented), backed by crypto-backed, with redemption terms: market-only. Attestation coverage is "onchain" for DAI and "none" for USDAI.

Which has the bigger market cap, DAI or USDAI?

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DAI is larger at $4.80B in circulating supply, against $349.57M for the other. Over the last 7 days supply moved −0.03% for DAI and +64.76% for USDAI.

Are DAI and USDAI trading at $1.00 right now?

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DAI trades at $1.0000 (+0.003% off peg) and USDAI at $1.0004 (+0.039% off peg). The gap between the two is about 3.6 basis points, which is the cost you pay when rotating size between them before fees.

Has DAI or USDAI ever depegged?

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DAI: worst recorded deviation −7.4%. USDAI: no material depeg recorded in our incident set. Past peg behaviour under stress is the single best available proxy for how a token trades in the next crisis.

Which is better for large institutional size, DAI or USDAI?

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For block size the constraint is exit liquidity and primary redemption, not headline supply. DAI shows deeper on-chain liquidity at $295.92M versus $108.67M. Combine that with the redemption channel — DAI: direct; USDAI: market-only — and size trades against the primary window rather than the order book where possible.

Can I earn yield on DAI or USDAI?

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USDAI currently shows the higher rate at 10.92% via pendle-v2 · Arbitrum, against 4.71% via flux-finance · Ethereum for DAI. Neither token pays interest by holding it in a wallet: the yield comes from lending, liquidity provision or a wrapped yield-bearing version, each with its own counterparty and contract risk.

Which chains support both DAI and USDAI?

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Both are deployed on 2 shared networks, including Ethereum, Arbitrum. DAI spans 31 chains in total and USDAI spans 3. Bridged supply on a chain is not the same as natively issued supply, and it usually carries the bridge's risk rather than the issuer's.

What does it cost to switch from DAI to USDAI?

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Budget three components: the current price spread of roughly 3.6 bps, swap or venue fees, and slippage against available depth ($295.92M for DAI, $108.67M for USDAI). For meaningful size, redeeming with the issuer and minting the other side is often cheaper than a secondary-market swap.

Is DAI or USDAI regulated?

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DAI is issued from Decentralised / Cayman foundation with onchain; USDAI is issued from Not documented with none. Regulatory status varies by your own jurisdiction and by whether the token is offered under a specific stablecoin regime, so treat this as a starting point for diligence, not legal advice.