Updated March 27, 2026
Generates synthetic multi-modal user simulations to stress-test AI agents before production, catching errors manual testing misses.
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
Pros
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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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