AWS open-sources Strands Harness, an agent that runs on any cloud
AWS shipped an open-source agent framework portable from local to cloud; its efficiency numbers are self-tested and await independent verification.
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AWS released the open-source Strands Harness on September 21, an agent framework that runs locally or on any cloud, including Google Cloud, Azure and Cloudflare.
It ships with read, write, edit, shell and web search tools, manages its own context window, and keeps memory across sessions via session IDs. It can run on Anthropic, OpenAI, Amazon Bedrock and Google models, or a local Ollama model, and installs via pip or npm.
AWS says the agent is 26% more efficient than agents built on other frameworks, and cost 77% less than Claude Code on the same tasks using Anthropic's Fable 5 model. These are AWS's own first-party benchmarks with no independent reproduction yet.