Sei is a Layer 1 blockchain whose architecture and roadmap have changed over time. Its earlier network combined Cosmos-based components with an EVM; the project is now transitioning toward an EVM-only architecture. SEI is the native token used for network functions such as transaction fees and staking. Older descriptions that present Cosmos, CosmWasm, and IBC features as an unchanged permanent part of the current network need this transition context.
SEI Market Snapshot
| Stat | Value |
|---|---|
| Ticker | SEI |
| Price | $0.058696 |
| Market Cap | $394.99M |
| 24h Change | -7.73% |
CoinGecko API fallback snapshot: 2026-10-18 20:54 UTC. Price, market cap, and 24-hour change can move; this is not investment advice.
From a Hybrid Chain Toward EVM-Only
Sei v2 introduced an EVM environment with parallel transaction execution. Parallel execution can improve throughput when transactions do not conflict, but it does not mean every transaction runs simultaneously or that an advertised maximum is normal real-world performance. Developers should check current compatibility, tooling, and network documentation instead of assuming every Ethereum application works without changes.
In May 2026, Sei announced that SIP-03 had disabled new CosmWasm contract deployments while existing contracts and IBC transfers remained unaffected at that stage. That announcement described a gradual transition, so it should not be read as proof that every legacy Cosmos feature has already been removed. Later changes and migration guidance should be checked before relying on a particular asset route or application.
What the Giga Roadmap Means
Sei describes Giga as a multi-part performance program. The first phase of its Eidos storage upgrade reached mainnet with v6.6 in August 2026, beginning a move of EVM state into a separate database. Sei’s update said larger pieces would arrive in later releases. This is progress toward the roadmap, not evidence that every planned storage, execution, or consensus upgrade is complete or that a target transaction rate has been achieved in ordinary use.
Practical Risks and Checks
- Confirm that a wallet, exchange, bridge, and dApp support the exact Sei network and token route involved.
- Distinguish current production features from roadmap targets and older Cosmos-era descriptions.
- Understand that parallel execution depends on transaction conflicts and implementation details.
- Review official migration and upgrade notices before interacting with legacy assets or applications.
Tokenomics and Supply
SEI’s launch tokenomics document specifies a 10 billion token cap. It identifies a 48% ecosystem reserve, 9% Foundation treasury and 3% launchpool allocation. The reserve supports staking rewards and ecosystem initiatives. SEI is used for network fees, validator delegation and governance.
These are launch allocation categories, not current circulating balances. The document allows allocations to evolve through governance. Distribution programs, vesting and actual releases must be distinguished; a maximum supply does not mean every token is immediately liquid.
Social Media Sentiment
A 2026 r/Tangem post described a user unable to access SEI sent through an EVM network that the wallet did not support; a support reply distinguished support for SEI from support for Sei EVM in that wallet. It is one historical wallet-compatibility case, not evidence of a protocol failure or a current support list.
Last updated: 2026-10
Related Terms
See Also
- Does Ethereum TPS Include Layer 2 Transactions?
- Are Layer 2 Networks Actually Decentralized?
- What Is Tokenomics — And Why It Determines Whether a Crypto Project Survives
- Swap crypto with ChangeNOW
Sources
- Sei Docs: EVM Overview — explains Sei’s EVM environment and its network-specific implementation.
- Sei Docs: Token Standards — documents supported token standards and SEI’s native network context.
- Sei: SIP-03 CosmWasm Deployment Update — records the May 2026 change and what it said about existing contracts and IBC at that time.
- Sei: The Eidos Upgrade — describes the first Eidos phase and separates shipped work from later roadmap components.
- Sei — Launch Tokenomics — Documents the launch supply cap, allocation categories and token roles.