Key features
Core capabilities each platform advertises.
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- Multimodal evaluation (text, image, audio, video)
- OpenTelemetry-native tracing (TraceAI)
- Automated hallucination detection
- Prompt optimization
- Safety & compliance monitoring
Updated March 27, 2026
Agenta is an open-source platform for prompt engineering, evaluation, and experimentation. It provides a prompt playground, version control for prompts, A/B testing, and evaluation pipelines. Teams can iterate on prompts collaboratively, track experiments, and deploy optimized prompts to production.
Multimodal AI evaluation and observability platform with automated quality scoring across text, image, audio, and video outputs. Open-source TraceAI tracing built on OpenTelemetry.
Core capabilities each platform advertises.
What each tool does well, and the limitations to keep in mind.
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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