What is LLM cost monitoring with OpenTelemetry?

Auto-tracks input/output tokens per LLM API call using GenAI semantic conventions, turning observability data into dollar alerts.

How do I set up OpenTelemetry for OpenAI costs?

Install opentelemetry-instrumentation-openai-v2, wire your tracer provider, instrument — tokens flow to spans instantly.

Variable prompts, chains, model prices, hidden reasoning tokens — all explode without per-call visibility.

🤝 Community & Governance

Your LLM feature aced staging. Production? A $5K surprise awaits. OpenTelemetry fixes that with automatic token tracking.

theAIcatchup Apr 09, 2026 3 min read

OpenTelemetry's GenAI conventions auto-capture tokens, enabling cost breakdowns in your existing stack. 𝕏
Traditional APM ignores dollars; token counts reveal 50x outliers invisible in latency traces. 𝕏
Output tokens cost 4-8x more — instrument now to tame long-generation beasts like code or explanations. 𝕏

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Community-driven. Code-first.

#AI observability #GenAI observability #LLM costs #OpenTelemetry #token monitoring

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Originally reported by Dev.to