Sei Giga tracker shows devnet complete, Ares and Eidos in build

Sei Labs has completed the internal devnet for its Giga protocol upgrade, with Ares and Eidos now in active development, per the project's public tracker, last updated May 27, 2026.

Giga is Sei Labs' staged effort to raise throughput on the EVM layer-1 while keeping finality below 400 milliseconds. The project's tracker lists four named components: Ares, Eidos, Autobahn, and Sedna. Autobahn testnet, Autobahn mainnet, and Sedna are marked as coming soon.

Sei Labs first outlined Giga in a whitepaper published May 2025. The paper centered on Autobahn, a multi-proposer consensus mechanism targeting 200,000 transactions per second with sub-400ms finality. That target is not a live mainnet figure.

Autobahn changes Sei's consensus design by letting multiple validators propose blocks at the same time instead of relying on one proposer to sequence activity. Standard single-proposer consensus caps throughput at what one machine can order. Autobahn sends parallel proposals through a two-phase BFT coordination layer that orders the results, per Sei's technical documentation. The architecture follows an n = 3f + 1 replica model.

Internal devnet testing recorded 5 gigagas per second. Sei Labs says the full stack would deliver more than 50-fold throughput gains, 70-fold faster block production, and 40-fold better execution efficiency relative to the current chain, per the whitepaper announcement.

Sub-400ms finality is already live on current mainnet. Giga's stated target is to sustain that finality at much higher loads, Crypto Briefing reported.

Ares is the execution client upgrade, using pipeline processing and async operations. Eidos is the state management upgrade, replacing merkle trees with flat key-value storage. Autobahn is the consensus layer. Sedna adds a private mempool through encrypted transaction dissemination.

A related governance proposal, SIP-3, would deprecate the Cosmos and CosmWasm execution environments in favor of an EVM-only stack. It is tracked separately on the milestone page and is also in progress.

No mainnet launch date is set. Sei Labs has framed Giga as a progressive release tied to milestone completion, with the public tracker serving as the live progress signal.