How Does Sommelier Work?
A yield platform where you deposit into vault strategies managed by approved strategists using private machine-learning models. It holds $40M in deposits with $15M in funding. Its C+ grade reflects serious opacity risk: the strategy logic runs off-chain and cannot be verified before your money is moved.
TVL
$1M
Sector
Yield
Risk Grade
C+
Value Grade
D-
Core Mechanisms
Vault/Managed-Strategy
NovelCellar smart contract vaults with off-chain strategy computation
Vaults execute strategies computed off-chain by strategists using ML models and time-series forecasting. On-chain contracts enforce position limits but strategy logic is private.
Bridge/Cosmos-EVM
NovelSommelier Cosmos SDK chain bridging to Ethereum via Gravity Bridge and Axelar
Custom Cosmos appchain validates rebalance messages through validator consensus before bridging to EVM. Proprietary Gravity Bridge for Ethereum, Axelar for alt-EVMs.
Governance/Strategist-Delegation
NovelWhitelisted strategist functions with governance-approved rebalancing authority
Once voted in by governance, strategists can call whitelisted functions without per-rebalance consensus. Novel trust model balancing efficiency with decentralization.
Consensus/Validator-Rebalance
NovelCosmos validator set reaching consensus on rebalance messages
Rebalance instructions must pass through validator consensus before on-chain execution, adding a decentralized check on off-chain computation outputs.
Vault/Multi-Position
Cellars V2 with arbitrary DeFi protocol integration
V2 architecture allows strategists to leverage any DeFi protocol, expanding the strategy design space but also the smart contract interaction surface.
Yield/Predictive
Time-series forecasting for base yield estimation and position rebalancing
Off-chain models use time-series methods to forecast yields and detect regime shifts like de-pegs, triggering automatic rebalancing.
Token/Governance
SOMM token for staking, governance, and validator incentives on Cosmos chain
Standard Cosmos SDK governance token used for validator staking, strategist approval votes, and protocol parameter changes.
How the Pieces Interact
Opaque off-chain models could compute harmful rebalances that pass validator consensus if the strategy logic is flawed or manipulated, draining vault funds before detection.
Bridge message delay or failure during volatile markets could prevent time-sensitive rebalances from executing, leaving vaults exposed to drawdowns.
Whitelisted strategist functions across arbitrary DeFi protocols expand the attack surface; a compromised strategist could rebalance into vulnerable protocols.
Model prediction errors during regime shifts could trigger pro-cyclical rebalancing, amplifying losses rather than mitigating them.
Low governance participation could allow approval of poorly vetted strategists who deploy risky or extractive strategies through Cellars.
What Could Go Wrong
- Off-chain strategy computation is opaque and cannot be verified on-chain before execution
- Cosmos-to-Ethereum bridge introduces cross-chain message integrity risk
- Strategist trust model relies on governance approval but grants broad rebalancing authority
Opaque Strategy Vault Drain
ElevatedTrigger: A strategist's off-chain ML model computes a harmful rebalance that passes validator consensus, directing Cellar vault funds into a vulnerable or compromised DeFi protocol
- 1.Off-chain strategy model generates a rebalance into a high-yield but vulnerable protocol — Rebalance instruction is submitted to Cosmos validator set for consensus
- 2.Validators approve the rebalance (strategy logic is opaque and not verifiable on-chain) — Cellar vault funds are deployed to the target protocol via Gravity Bridge
- 3.Target protocol is exploited or the position suffers a de-peg event — Cellar vault loses significant portion of deployed capital
- 4.Bridge latency prevents emergency rebalance during the critical window — Vault depositors face 30-70% loss before recovery action can execute
Risk Profile at a Glance
Overall: C+ (42/100)
Lower score = safer