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Open Source

Phoenix by Arize

Open-source ML observability tool for debugging LLM, CV, and NLP models

Web Python Self-hosted

349

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Freemium

Maxim AI

AI evaluation and observability platform for testing and improving LLM applications

Web API Python

260

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Open Source

Kiln

Intuitive no-code app for building AI models with synthetic data and fine-tuning

macOS Windows Linux

295

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Open Source

Opik by Comet

Open-source LLM evaluation and testing platform by the creators of Comet ML

Web API Python

291

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Open Source

Agenta

Open-source LLMOps platform for prompt management, evaluation, and deployment

Web API Self-hosted

83

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Open Source

TensorZero

Open-source framework for building and optimizing production LLM applications

API Python TypeScript

275

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Paid

Prediction Guard

Secure, compliant LLM API with privacy controls and output validation

Web API Python

448

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Open Source

Langfuse

Open-source LLM observability platform for debugging and improving AI applications

Web API Self-hosted

213

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Freemium

Portkey

Full-stack LLMOps platform for monitoring, managing, and optimizing AI apps

Web API Python

83

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Freemium

Cleanlab

Automated data quality platform that detects and fixes label errors in ML datasets

Web API Python

44

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