Monad is a high-performance Ethereum-compatible L1. Monad materially advances the efficient frontier in the balance between decentralization and scalability. Monad introduces optimizations in five major areas, resulting in an Ethereum-compatible Layer-1 blockchain with 10,000 tps of throughput, 400ms block frequency, and 800ms finality: MonadBFT for performant, tail-fork-resistant BFT consensus,RaptorCast for efficient block transmission, Asynchronous Execution for pipelining consensus and execution to raise the time budget for execution, Parallel Execution and JIT Compilation for efficient transaction execution, MonadDb for efficient state access. Monad's improvements address existing bottlenecks while preserving seamless compatibility for application developers (full EVM bytecode compatibility) and users (Ethereum RPC API compatibility).