Hybrid Router - RouterArena Submission

[mikemao27]

Relevant Files

• hybrid-router.json- regular predictions
• hybrid-router-robustness.json - robustness predictions
• hybrid-router.json (config) - Router configuration

Submission Steps

1. Fork https://github.com/RouteWorks/RouterArena
2. Copy Files:
   • router_inference/predictions/hybrid-router.json
   • router_inference/predictions/hybrid-router-robustness.json
   • router_inference/config/hybrid-router.json
3. Open PR to RouteWorks/RouterArena
4. Comment /evaluate

Expected Performance

• Accuracy: ~71.35%
• Robustness Score: ~0.9667
• Routing Distribution: ~98.85% to qwen3-235b-a22b, ~3.4% to ministral-3b, the remainder to qwen3-30b-a3b.

[mikemao27]

/evaluate

[mikemao27]

/evaluate

[mikemao27]

/evaluate

[mikemao27]

/evaluate

[mikemao27]

/evaluate

[mikemao27]

/evaluate

[mikemao27]

/evaluate

[mikemao27]

/evaluate

[mikemao27]

/evaluate

[mikemao27]

/evaluate

[mikemao27]

/evaluate

[github-actions]

Router Evaluation Results

Router: hybrid-router
Dataset Split: full

RouterArena Metrics

Metric	Value
RouterArena Score	0.7208
Accuracy	71.38%
Total Cost	$0.321511
Avg Cost per Query	$0.000038
Avg Cost per 1K Queries	$0.0383
Number of Queries	8400
Abnormal Entries	0
Robustness Score	0.9667

Optimality Metrics

Metric	Value
Opt.Sel (Optimal Selection)	0.8987
Opt.Cost (Cost Efficiency)	0.9419
Opt.Acc (Accuracy vs Optimal)	0.9281

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Evaluation completed by RouterArena automated workflow

[mikemao27]

@yl231 Thanks for your feedback on my previous router submission. I think it should be good to go this time. Would be good to note that for OpenRouter users, mistralai/ministral-3-3b-2512 now goes by mistralai/ministral-3b-2512. The model costs should still remain the same.