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neuron-tai/docs/issues/26-smart-model-assignment.md
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Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-07-01 14:18:26 +03:00

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US-026 — Smart model assignment via demand×coverage scoring

Status: done Priority: Medium Stage: Implemented

Context

/v1/network/assign currently picks the model with the largest uncovered shard gap, ignoring traffic. A model serving 1000 RPM at 60% coverage is far more valuable to fill than a zero-traffic model at 50% coverage.

Scoring formula

score = (demand_rpm + 1.0) × (coverage_deficit + 0.01)
  • demand_rpm: combined RPM from _StatsCollector.get_combined_stats()
  • coverage_deficit: fraction of model layers with zero node coverage, in [0.0, 1.0]
  • +1.0 floor: models with no traffic still compete by coverage
  • +0.01 floor: fully-covered models still have a non-zero score if they have traffic

price_per_token: 0.0 reserved in the response for future billing integration.

Acceptance criteria

  • _handle_network_assign computes score per model and returns the highest
  • Demand uses combined stats (local + peer slices)
  • price_per_token: 0.0 present in response
  • Test: high-demand low-coverage model beats low-demand high-coverage model
  • python -m pytest passes