This page shows you how to [evaluate responses](/guides/evaluate-answers-evaluation-overview) from an assistant or other RAG systems using the `metrics_alignment` operation.

You can [evaluate a response](/guides/evaluation-2026-04-assistant-metrics-alignment) from an assistant, as in the following example:

:::code-group
```python Python theme={null}
# To use the Python SDK, install the plugin:
# pip install --upgrade pinecone pinecone-plugin-assistant
# pip install requests

import requests
from pinecone_plugins.assistant.models.chat import Message

payload = {
    "question": "What are the capital cities of France, England and Spain?", # Question to ask the assistant.
    "answer": "Paris is the capital city of France and Barcelona of Spain", # Answer from the assistant.
    "ground_truth_answer": "Paris is the capital city of France, London of England and Madrid of Spain." # Expected answer to evaluate the assistant's response.
}

headers = {
    "Api-Key": "YOUR_API_KEY",
    "Content-Type": "application/json"
}

url = "https://prod-1-data.ke.pinecone.io/assistant/evaluation/metrics/alignment"

response = requests.request("POST", url, json=payload, headers=headers)

print(response.text)
```

```bash curl theme={null}
PINECONE_API_KEY="YOUR_API_KEY"

curl "https://prod-1-data.ke.pinecone.io/assistant/evaluation/metrics/alignment" \
  -H "Api-Key: $PINECONE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "question": "What are the capital cities of France, England and Spain?",
  "answer": "Paris is the capital city of France and Barcelona of Spain",
  "ground_truth_answer": "Paris is the capital city of France, London of England and Madrid of Spain"
}'
```
:::

```json Response theme={null}
{
  "metrics": {
    "correctness": 0.5,
    "completeness": 0.3333,
    "alignment": 0.4
  },
  "reasoning": {
    "evaluated_facts": [
      {
        "fact": {
          "content": "Paris is the capital city of France."
        },
        "entailment": "entailed"
      },
      {
        "fact": {
          "content": "London is the capital city of England."
        },
        "entailment": "neutral"
      },
      {
        "fact": {
          "content": "Madrid is the capital city of Spain."
        },
        "entailment": "contradicted"
      }
    ]
  },
  "usage": {
    "prompt_tokens": 1223,
    "completion_tokens": 51,
    "total_tokens": 1274
  }
}
```

## Related pages

- [Account management](./account-management-index.md)
- [Admin](./admin-2-index.md)
- [Admin](./admin-index.md)
- [APIs](./apis-index.md)
- [Architecture](./architecture-index.md)
- [Assistants](./assistants-index.md)
- [Bring Your Own Cloud](./bring-your-own-cloud-index.md)
- [Build an assistant](./build-an-assistant-index.md)
- [Build an integration](./build-an-integration-index.md)
- [Changelog](./changelog-index.md)

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