Are we missing a benchmark for agent runtimes, not just models?

Reddit r/LocalLLaMA News

Summary

The article discusses the need for a benchmark to evaluate AI agent runtimes independently of models, suggesting metrics like task success rate and cost, and proposing controlled experiments to compare platforms.

We have SWE-bench, Terminal-Bench, OSWorld, BrowseComp, etc. But I haven’t seen a good apples-to-apples benchmark for platforms like OpenAI Agents, Anthropic’s agent stack, AWS AgentCore, Google’s agent platform, and local-alternatives like LangGraph, etc. What I’d want measured: - task success rate - cost per successful task - wall-clock time - tool calls / retries - reliability over long-running tasks - (optionally) human interventions required The really interesting experiment would control for both sides: - Same model, different harness → how much does the runtime matter? - Same harness, different model → how much does the model matter? Feels like we’re increasingly evaluating “model + harness” systems, but our benchmarks still mostly treat the model as the unit of comparison. Does something like this already exist?
Original Article

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