Jev Router’s cost and latency trade-off with DeepSeek V4.1 Flash (Max)

Agent Arena says its tests spanning more than 4,700 real-world agentic sessions found that Jev Router had similar performance to DeepSeek V4.1 Flash (Max), but cost 38% more and had 1.7 times the median model request latency. The router scored +10% on steerability, nearly matching Claude Opus 5.5 (High) at +10.48%. Arena concluded that calling DeepSeek directly offered a better cost-and-latency trade-off.