Avalanche launched its mainnet in September 2020, built by Ava Labs under the leadership of Cornell computer scientist Emin Gün Sirer. It introduced its own family of consensus protocols (collectively 'Avalanche consensus') and a distinctive three-chain architecture, aiming to combine fast finality with the flexibility for projects to launch their own application-specific chains, called subnets.
Category
layer-1
Consensus mechanism
Proof of Stake (Avalanche consensus)
Launched
2020
The X, C and P-Chains
Avalanche's primary network splits responsibilities across three built-in chains: the X-Chain for asset creation and transfers, the C-Chain (EVM-compatible, where most DeFi and smart-contract activity happens) and the P-Chain for coordinating validators and subnets. This is a different structural approach to a single monolithic chain, aiming to isolate different workloads from one another.
Avalanche consensus itself uses repeated random sub-sampling of the validator set to reach probabilistic finality very quickly, a different mechanism to both classical Byzantine-fault-tolerant consensus and Bitcoin-style proof-of-work confirmation depth.
Subnets
Subnets let a project launch its own independent blockchain with custom rules — its own validator set, gas token and virtual machine — while still being able to interoperate with the wider Avalanche network, a model pitched at enterprises and applications wanting more control than a shared general-purpose chain offers. Subnet adoption and activity levels vary significantly project to project and should be checked directly rather than assumed from Avalanche's own base-layer metrics.
Tokenomics
| circulating-supply | — |
|---|---|
| max-supply | 720,000,000 AVAX (protocol-fixed cap) |
| issuance-model | Fixed cap; staking-reward issuance decreases over time toward the maximum |
Last verified: 8 July 2026. before you rely on any figure — live circulating supply and market cap are never published here; check a live tracker.
Risks & criticisms
- The subnet model's value depends on third-party projects actually launching and maintaining active subnets — check current subnet adoption rather than assuming uniform ecosystem activity.
- As with any newer consensus design, Avalanche consensus has a shorter public track record than Bitcoin's or Ethereum's, though it has now run in production for several years.
- AVAX has a fixed supply cap, but the schedule and current issuance rate should be checked against Ava Labs' current documentation rather than assumed static.
Where to buy
Frequently asked questions
What are the X, C and P-Chains?
Avalanche's three built-in chains: the X-Chain for asset transfers, the C-Chain (EVM-compatible) for smart contracts and DeFi, and the P-Chain for validator/subnet coordination.
What is an Avalanche subnet?
An independent blockchain that a project can launch with its own custom validator set, gas token and rules, while still interoperating with the wider Avalanche network.
Does AVAX have a maximum supply?
Yes — the protocol caps total supply at 720,000,000 AVAX, with staking-reward issuance decreasing over time toward that cap.