[KongchangAI]
Unverified50% confidenceBenchmarkExact time

When EnvOpt is layered on top of the harness that Meta-Harness optimized for Haiku 4.5, cost drops by a further 83.4% and accuracy improves by an additional 11.17% compared with using Meta-Harness alone.

1
Sources
50%
Confidence
Long-term
Relevance
11/6/2026
First Seen

Sources

EnvOpt: A New Direction for Agent Environment Optimization, Cutting Costs by 72.7%
rss11/5/2026

Related Entities

EnvOptconceptMeta-HarnessconceptClaude Haiku 4.5model

Related Claims

UnverifiedSwitching the default from the Sonnet tier to the Haiku tier reflects a trade-off among cost, speed, and capability, as Haiku is lighter, responds faster, and costs less.53% similar

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