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AWS Open-Sources an AI Agent It Says Is 45% Cheaper than Claude Code and Codex

AWS says the harness cuts agent costs 45% versus Claude Code and Codex in testing while keeping accuracy broadly comparable.

Summary by The New Stack
Strands Harness bundles the tools, context and memory developers otherwise build. AWS says smarter context helped token efficiency — but one rival still beat it.

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AWS launched Strands, a Harness of Open Source Agents that, according to its own tests, obtained results close to Claude Code and Codex using 28% less tokens. The tool promises to simplify the creation of agents, although its benchmarks face a key limitation: they compared mainly programming agents and still lack independent evaluation.

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The Register broke the news in London, United Kingdom on Monday, September 21, 2026.
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