> ## Documentation Index
> Fetch the complete documentation index at: https://mintlify-poc.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# cohere_detokenize()

> Convert token IDs back into text

Convert an array of token IDs back into readable text. This is the inverse operation of `cohere_tokenize()`.

## Samples

### Detokenize tokens

```sql theme={"dark"}
SELECT ai.cohere_detokenize(
    'embed-english-v3.0',
    ARRAY[5432, 8754, 389, 264, 8147, 4729]
);
```

Returns: `'PostgreSQL is a powerful database'`

### Round-trip tokenization

```sql theme={"dark"}
SELECT ai.cohere_detokenize(
    'embed-english-v3.0',
    ai.cohere_tokenize('embed-english-v3.0', 'Hello, world!')
);
```

## Arguments

| Name           | Type      | Default | Required | Description                           |
| -------------- | --------- | ------- | -------- | ------------------------------------- |
| `model`        | `TEXT`    | -       | ✔        | Cohere model for detokenization       |
| `tokens`       | `INT[]`   | -       | ✔        | Array of token IDs to convert         |
| `api_key`      | `TEXT`    | `NULL`  | ✖        | Cohere API key                        |
| `api_key_name` | `TEXT`    | `NULL`  | ✖        | Name of secret containing the API key |
| `verbose`      | `BOOLEAN` | `FALSE` | ✖        | Enable verbose logging                |

## Returns

`TEXT`: The reconstructed text from the token IDs.

## Related functions

* [`cohere_tokenize()`][cohere_tokenize]: convert text into tokens

[cohere_tokenize]: /api-reference/pgai/model-calling/cohere/cohere_tokenize