“LangSmith | Seat + trace usage | Plus: $39/seat/month, 10k base traces included”
+ collaboration and agent development
“It is attractive when collaboration and agent development are important, but costs can rise with both team size and execution volume.”
− costs rise with team size and execution volume
“It is attractive when collaboration and agent development are important, but costs can rise with both team size and execution volume.”
“Braintrust | Data ingestion + evaluation usage | Processed-data and scoring-based billing”
“Langfuse | Subscription + event/unit usage | Core: $29/month, 100k units included, then $8/100k”
+ predictable graduated pricing
“Its graduated rates decrease with volume, making it relatively predictable for growing workloads.”
“Datadog Agent Observability | LLM-span usage | Pro: $160/month for up to 100k LLM spans”
+ bills specifically for LLM spans
“Datadog: Bills specifically for LLM spans, rather than all workflow spans.”
“Grafana Agent Observability | Generation + evaluator token + telemetry usage | Three independently metered dimensions”
+ separate billing dimensions
“Grafana: Separates model generations, LLM evaluator/guard tokens, and standard telemetry into independent billing dimensions.”