Braintrust vs OpenLLMetry
Braintrust
braintrust.devOpenLLMetry
traceloop.comSide by side
| Figure | Braintrust | OpenLLMetry |
|---|---|---|
| Price from | $249/mo | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 4 | 2 |
| Spec score · AI LLM Observability Tools | 9.2 (#2) | 6.9 (#23) |
| Spec score · LLM Observability Tools | 9.2 (#3) | 6.9 (#26) |
| Framework support | Braintrust describes itself as framework agnostic and says it works with existing application stacks without framework lock-in. | The supported framework list includes LangChain, LlamaIndex, CrewAI, Haystack, and OpenAI Agents, with language support varying by framework. |
| Support | The pricing page lists community support, priority support, and shared Slack channel support across its plans. | The Enterprise plan includes dedicated Slack support. |
Plans
In their own words
Braintrust
Braintrust is an observability platform for teams running AI agents in production. It lets teams inspect agent traces and tool calls while tracking latency, cost, and quality in real time. Users can evaluate datasets, compare prompts and models, and score outputs with LLMs, code, or human reviewers. Discovery tools surface patterns in production traces to help investigate agent behavior, and the Loop agent can run evaluations, generate test cases, and iterate on prompts autonomously. Braintrust lists native SDKs for Python, TypeScript, Go, Ruby, C#, and more, and its MCP server lets coding agents query logs, run evaluations, and update prompts from an IDE. Security options listed include SSO, RBAC, and hybrid deployment; Braintrust states that it is SOC 2 Type II certified and GDPR and HIPAA compliant. Starter is free, with 1 GB processed data, 10,000 scores, and 14-day retention. Pro costs $249.00 per month; Enterprise pricing is custom.
OpenLLMetry
OpenLLMetry has no write-up on Specifiction yet; its figures are above.