[Bug] OTEL data missing COST_USD field in API request events (v2.1.122+)

Resolved 💬 1 comment Opened May 4, 2026 by scott-gk Closed May 8, 2026

Bug Description
Note that we see this across our telemetry data.

Claude Code client versions 2.1.122 and newer stopped emitting the COST_USD field on API request events. Token counts and model names still come through fine - only the cost field is NULL.

Environment Info

  • Platform: darwin
  • Terminal: ghostty
  • Version: 2.1.118
  • Feedback ID: 84929ac9-4496-484f-ba32-b612103ed12a

Errors
No explicit errors, it is missing data.

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