←Back to NewsAI News/AgentsrepoAgentsOpen SourceUnreal Labs' Unreal Agent Cuts AI Coding Costs 39% Without Losing PerformanceUnreal Labs open-sourced a Go-based async agent harness that reportedly runs Terminal-Bench 4.0 at 39 percent lower cost than Codex plus Astra.SourceAlphaSignalPublishedSep 23, 2026, 12:11 AMAuthorAlphaSignal NewsroomRead1 min readUnreal Labs open-sourced a Go-based async agent harness that reportedly runs Terminal-Bench 4.0 at 39 percent lower cost than Codex plus Astra.Reporting is indexed from AlphaSignal. Rights remain with the original publisher and cited sources.Read original report ↗Next readsAlphaSignal · repoOpenHuman Packs Local AI Memory and Agent Graphs Into one Rust AppAlphaSignal · repoTencent Releases Octop, a Self-Hosted Multi-User AI Platform in One ProcessAlphaSignal · repoDream-RSI Cuts AI Coding Agent Calls by 162x Using Replay Worlds