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AstraRunner vs Langfuse

Langfuse is an excellent observability SaaS for LLM calls. AstraRunner is the runtime + observability for whole agent teams. You can run both — many of our customers do.

Who AstraRunner is for

If you need observability for a single LLM-powered application, Langfuse is purpose-built. If you orchestrate multiple agents working together, AstraRunner replaces the harness and ships the same observability surface.

When to pick Langfuse

·You only need prompt + completion logs.
·Your stack is a single chat app; no multi-agent orchestration.
·You want the lightest-weight tracing SDK in town.

Feature-by-feature

Side by side

Observability

Feature	AstraRunner	Langfuse
LLM call tracing
Token + cost attribution
Trace replay
Prompt-experimentation A/B Langfuse leads here.	roadmap
OTel-native export		partial
Reasoning visibility		partial

Orchestration

Feature	AstraRunner	Langfuse
Multi-agent team definition
Parallel + sequential workflows
Long-running execution
Human-in-the-loop checkpoints
Per-team cost budgets		partial

Memory

Feature	AstraRunner	Langfuse
Shared agent memory
Multi-tenant isolation

Need observability AND orchestration?

Run both. AstraRunner ships an OTLP exporter; Langfuse will receive the spans cleanly.

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