Ambient Launches AI Inference-Based Layer 1 Blockchain Testnet

Ambient has launched a Layer 1 blockchain testnet based on AI inference. This network integrates the generation and verification of outputs from large language models (LLMs) into its reward structure, replacing the traditional proof of work (PoW). Ambient describes this network as a proof of work Layer 1 compatible with the Solana (SOL) virtual machine, utilizing a core mechanism called 'Proof of Logits' to validate specific outputs by leveraging the logits of the model. Validators reduce their verification burden by recalculating only a portion of tokens and comparing hashes without re-executing the entire inference. User requests are allocated through an auction mechanism, and miners and validators perform inference and verification off-chain, with an on-chain program handling the results and rewards. As of June 2026, Ambient reported that its public API has processed over 134 billion tokens. On March 31, 2025, Ambient secured $7.2 million in seed funding, aiming to integrate blockchain for verifiable AI capabilities. Currently, only testnet assets are confirmed, and there are no tradable native tokens. Ambient's initiative is noted as a case exploring the intersection of AI infrastructure and blockchain infrastructure, linked to the debates over power and resource use related to Bitcoin mining.

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