Routing between an open and a closed model reaches 50x cost efficiency

Claim

Benchmarking across a thousand agentic tasks found the open Kimi K3 competitive with the closed Claude Fable 5, and routing between them hit 93% accuracy at up to fifty times the cost-efficiency, while Chinese models now carry nearly 60% of US token usage on OpenRouter.

Reported metric: 93% accuracy / 50x efficiency / 60% of tokens

Reporting date: 2026-07-22 (not necessarily the event date)

Sources

Attribution and reporting linked by this record; links do not imply independent verification.

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