OpenLLMetry vs Baidu Qianfan vs Opik
Side by side, from each listing’s own data. A row where every column says the same is shown once, dimmed.
 OpenLLMetryby TraceloopRemove OpenLLMetry from this comparison |  Baidu Qianfanby BaiduRemove Baidu Qianfan from this comparison |  Opikby Comet MLRemove Opik from this comparison | |
|---|---|---|---|
| Sets it apart |
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| What it is | Instruments LLM and agent applications with OpenTelemetry-native tracing, exporting spans for prompts, tool calls, and chains to any OTel-compatible backend. | Serves Baidu's ERNIE and third-party models through an OpenAI-compatible API and hosts an agent development platform with tools, MCP and knowledge bases, for enterprises in China. | Traces LLM and agent runs, scores them with LLM-as-a-judge and heuristic metrics, and monitors production quality via Python and TypeScript SDKs and 60+ integrations. |
| Provider | Traceloop | Baidu | Comet ML |
| Official vendor | Traceloop | Baidu | Not an official listing |
| Verified | YesSame for all | ||
| Access | API | API | API, MCP, CLI |
| Auth | API KeySame for all | ||
| MCP server | No MCP server | No MCP server | In its setup guide |
| CLI install | No CLI | No CLI | In its docs |
| API base URL | In its docs | https://qianfan.baidubce.com/v2 | In its docs |
| Skills | Auto Instrumentation, Span Export, Workflow Tracing | Function Calling, Structured Output, Web Search, Anthropic API Compatibility, Responses API | Agent Trace Logging, LLM As Judge Metrics, Datasets And Experiments, Production Monitoring Rules, PyTest CI Evaluation |
| Streaming | NoSame for all | ||
| Push notifications | NoSame for all | ||
| Categories | Infrastructure & Ops, Research & Knowledge | Language & Translation, Infrastructure & Ops, Orchestration | Infrastructure & Ops, Code & DevTools |
| Tags | opentelemetry, llm-tracing, observability, span-export, prompt-monitoring, vendor-neutral, sdk-instrumentation | ernie, baidu-cloud, llm-api, openai-compatible, anthropic-compatible, function-calling, web-search | llm-tracing, llm-as-a-judge, prompt-playground, opentelemetry, pytest-integration, online-evaluation, guardrails, self-hosted |
| Listed since | Sep 18, 2026 | Oct 17, 2026 | Aug 1, 2026 |
| Use it now | |||
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