0G Storage vs Sia

0G Storage is a distributed storage layer for onchain applications, including AI agents, DePIN, and gaming. It provides an append-only Log Layer for unstructured data and a mutable Key-Value Layer for structured data. The product page describes 50 Gbps throughput for the Log Layer, millisecond-level access to structured and unstructured data, and sub-second access for the KV Layer. Cryptographic proofs, erasure coding, sharding, and Proof of Random Access challenges support integrity and availability. Uploads are committed on-chain as Merkle roots, while mutable states preserve immutable history. Listed workloads include datasets, media, AI model weights, sensor logs, vector embeddings, user state, and metadata. Developers can use TypeScript or Go SDKs, a CLI, or a web upload tool. It integrates with blockchains, rollups, VMs, hybrid stacks, and Web2 applications. Pricing starts at $11/mo, with API, Linux, macOS, self-hosted, and web access.

Sia offers encrypted, decentralized cloud storage through a consumer app and tools for developers building storage into applications. Files are encrypted on the user’s device before upload, and Sia says nobody else can read them. The app describes files as redundantly held across independent hosts worldwide, with parallel downloads from multiple hosts. Sia describes its peer-to-peer network as having no central access point or single point of failure. Consumer plans list 50 GB on Free, 500 GB for $7.99 a month on Plus, 5 TB for $14.99 a month on Pro, and 10 TB for $19.99 a month on Unlimited; Unlimited lists 4.99 USD/TB-mo over its included capacity. Separately, the network page lists median prices of $3.53/TB/month for storage at 3X redundancy, $0.03/TB for upload, and $2.25/TB for download. Developers can use storage SDKs for Rust, Go, Python, and JavaScript, or the S3-compatible s3d gateway with rclone, Cyberduck, Nextcloud, and Duplicati. The SDK can connect to an indexer hosted by the user.