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TensorZero

Observability · Open source

Open-source LLM application stack for observability, evaluations, prompt optimization, and controlled model gateway workflows.

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Start building with TensorZero
Python

Detected in linked setup sources

Paste into a fresh Python file and run.

python
from openai import OpenAI

# Point the client to the TensorZero Gateway
client = OpenAI(base_url="http://localhost:3000/openai/v1", api_key="not-used")

response = client.chat.completions.create(
    # Call any model provider (or TensorZero function)
    model="tensorzero::model_name::anthropic::claude-sonnet-4-6",
    messages=[
        {
            "role": "user",
            "content": "Share a fun fact about TensorZero.",
        }
    ],
)
Docs:Official DocsGitHubWebsite