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Freeplay alternatives

8 alternatives to Freeplay, each with what it shares — capabilities, price, free plan — read from the makers' pages.

Freeplay helps AI teams manage prompts, datasets, evaluations, experiments, and production observability.

• PromptLayer

  Both: prompt management, developer tools · both have a free plan · from $49/mo

• Langfuse

  Both: llm observability, prompt management, developer tools · both have a free plan · from $29/mo · open source

• Braintrust

  Both: developer tools · both have a free plan

• Weights & Biases

  Both have a free plan · from $60/mo

• Helicone

  Both: llm observability, prompt management · both have a free plan · from $79/mo · open source

• Opik

  Both: llm observability · both have a free plan · from $19/mo · open source

• MLflow

  Both have a free plan · open source

• Arize AX

  Both: ai agents, developer tools · both have a free plan · from $50/mo