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PromptLayer alternatives

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

PromptLayer helps AI teams manage prompts, run evaluations, trace agents, and monitor LLM application usage.

• Freeplay

  Both: prompt management, developer tools · both have a free plan

• Langfuse

  Both: prompt management, developer tools · both have a free plan · from $29/mo against $49/mo · open source

• Braintrust

  Both: developer tools · both have a free plan

• Arize Phoenix

  Both: llm evaluation, agent tracing, prompt engineering · both have a free plan · open source

• Opik

  Both have a free plan · from $19/mo against $49/mo · open source

• Arize AX

  Both: developer tools · both have a free plan

• Helicone

  Both: prompt management · both have a free plan · open source

• Weights & Biases

  Both: llm evaluation · both have a free plan