Best open-source evaluation tools in 2025

Open-source observability for AI agents' performance and security.
Free
+ from $31/m
open

Manage and deploy AI models seamlessly across environments.
Free
+ from $30/m
open
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AI agent monitoring
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AI monitoring metrics
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API observability
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API request tracing
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API tracking
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Dataset compliance
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Developer accessibility
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Enterprise-grade security
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Latency compliance
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Latency metrics
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Latency tracking
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Open-source observability
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Performance automation
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Track AI application performance
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Typescript support