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OpenLIT vs Braintrust
OpenLIT vs Braintrust
Braintrust is widely used for prompt management, datasets, and evaluation experiments as a managed product. OpenLIT is an open-source Apache-2.0 platform you self-host for LLM observability, LLM-as-a-judge, Prompt Hub, and cost tracking on OpenTelemetry.
| Feature | OpenLIT | Braintrust |
|---|---|---|
| Core Architecture | ||
| OpenTelemetry-native | ||
| Open Source | Apache 2.0 | Commercial / cloud-first |
| Self-hostable | Limited / commercial | |
| Free self-hosted tier | ||
| Vendor-neutral data export | ||
| LLM Monitoring | ||
| Token usage tracking | ||
| Cost per request | ||
| Latency / p95 metrics | ||
| Prompt & response logging | ||
| Broad LLM / framework auto-instrumentation | Via SDK / integrations | |
| Infrastructure Monitoring | ||
| GPU monitoring (NVIDIA + AMD) | ||
| Vector DB tracing | ||
| Multi-environment tagging | ||
| Developer Tools | ||
| Prompt Hub (versioning) | ||
| Evaluations (LLM-as-a-judge) | ||
| Dataset / experiment UX | Via evals + traces | |
| Secrets Vault | ||
| Fleet Hub (multi-deployment) | ||
| Pricing & data | ||
| Free self-hosted | ||
| Data residency on your infra | Full (self-hosted) | Cloud by default |
Choose OpenLIT when…
- You need an Apache-2.0, self-hosted stack for compliance or cost control
- You want OpenTelemetry-native tracing plus evals and Prompt Hub in one product
- You need GPU monitoring, Vault, or agent monitoring alongside evaluation
- You want unlimited self-hosted usage without per-trace SaaS pricing
Choose Braintrust when…
- You want a managed cloud product optimised for eval experiments and datasets
- Self-hosting and open-source licensing are not requirements
- You prefer Braintrust’s experiment and scoring UX as your primary workflow
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