AWS launches open-source Strands AI agent harness, claiming lower costs than Claude Code
Summary
AWS launches the open-source Strands AI agent harness and CLI, claiming it cuts costs 26% across seven benchmarks—and 77% versus Claude Code in Fable 5—while supporting Bedrock, Anthropic, OpenAI, Google, and local Ollama models without requiring AWS infrastructure.
Key Points
- AWS launches Strands harness, a ready-to-run AI agent that lets developers choose among Amazon Bedrock, Anthropic, OpenAI, Google, or local Ollama models.
- AWS claims Strands harness costs 26% less across seven same-model benchmarks and, in a Fable 5 evaluation, costs 77% less than Claude Code while scoring higher on Terminal-Bench 2.1.
- AWS also releases a Strands CLI for natural-language agent prototyping; the open-source harness is available through PyPI, npm, and the CLI without requiring AWS infrastructure or Amazon Bedrock.