Key features
Core capabilities each platform advertises.
- Multimodal evaluation (text, image, audio, video)
- OpenTelemetry-native tracing (TraceAI)
- Automated hallucination detection
- Prompt optimization
- Safety & compliance monitoring
Data not available
Updated March 27, 2026
Multimodal AI evaluation and observability platform with automated quality scoring across text, image, audio, and video outputs. Open-source TraceAI tracing built on OpenTelemetry.
Opik by Comet is an open-source LLM evaluation and observability platform. It provides tracing, evaluation scoring, dataset management, and experiment tracking for LLM applications. Opik supports automated LLM-as-judge evaluations and integrates with popular frameworks like LangChain and LlamaIndex.
Core capabilities each platform advertises.
What each tool does well, and the limitations to keep in mind.
Pros
Cons
Pros
Cons
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Respan lets you trace LLM and agent calls across any model or framework, A/B test prompts on production traffic, and route requests across 500+ models through one gateway.
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