LLM Playground

Where is this feature available?
  • Hobby
  • Pro
  • Team
  • Self Hosted

Test and iterate on your prompts directly in the Langfuse LLM Playground. Tweak the prompt and the model parameters to see how different models responds to these changes inputs. This allows you to quickly iterate on your prompts and optimize them for the best results in your LLM app without having to switch between tools or use any code.

LLM Playground

Core features

  • {{variables}} in prompts
  • OpenAI and Anthropic models
  • Compare model parameters
  • Linked to prompt management

We'll be adding more features and models in the future. If you have any feedback or feature requests, please let us know!

Jump from prompt management to the playground

You can either start from scratch or jump into the playground from an existing prompt in Langfuse Prompt Management.

Supported models

While in public beta, the Langfuse cloud playground is accessible to all users and does not require bringing your own API keys.

Currently the playground supports the following models:

  • OpenAI: gpt-4-turbo-preview, gpt-4-1106-preview, gpt-4-0613, gpt-4-0125-preview, gpt-4, gpt-3.5-turbo-16k-0613, gpt-3.5-turbo-16k, gpt-3.5-turbo-1106, gpt-3.5-turbo-0613, gpt-3.5-turbo-0301, gpt-3.5-turbo-0125, gpt-3.5-turbo
  • Anthropic: claude-3-opus-20240229, claude-3-sonnet-20240229, claude-3-haiku-20240307, claude-2.1, claude-2.0, claude-instant-1.2

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