The Generate API is slated for deprecation on Aug 26, 2025.

In order to use Cohere generative functionality, we recommend using the [Chat endpoint](https://docs.cohere.com/fern/pages/-ARCHIVE-/api-reference/chat-1/chat.mdx). This guide outlines how to migrate from Generate to Chat in order to get improved performance and to eliminate any potential interruptions.

## Overview

While the Generate endpoint works with raw prompts, the Chat endpoint is designed for a conversational interface between a User and an Assistant.

Here's an example:

```python PYTHON
import cohere

co = cohere.ClientV2()

# BEFORE
co.generate(prompt="Write me three bullet points for my resume")

# AFTER
co.chat(
    model="command-a-03-2025",
    messages=[
        {
            "role": "user",
            "content": "Write me three bullet points for my resume",
        }
    ],
)
```

### Unsupported Features

The following parameters were previously available in Generate but are _not supported_ by Chat.

- `num_generations`: To achieve the same outcome as `num_generations=n`  in Chat, please call `co.chat()`  `n`  times.
- `stop_sequences` and `end_sequences`: Going forward, we ask users to trim model outputs on their side instead of setting a stop sequence.
- `logit_bias`: This is not supported in the Chat endpoint.
- `truncate`: This is not supported in the Chat endpoint.
- `preset`: This is not supported in the Chat endpoint. Please create and store presets on your end instead of storing them via our endpoints.

### Example for Migrating from Generate to Chat

Here are some steps you can take to ensure that your migration goes smoothly:

- Ensure that you're using the `message` parameter instead of the  `prompt` parameter. The primary way of communicating with the Chat API is via  `message`. Going forward, send the contents of your prompt through  `message` and _not_ through `prompt`.
- No changes have been made to `k`, `p`, `frequency_penalty`, `presence_penalty`, `max_tokens`, `stream`, or `temperature`, so those should behave as expected.

### Fine-tuned Models

Models that were fine-tuned to use the Generate API will work with the Chat API. Remember not to use the `chat_history` parameter, as this parameter is only supported for models fine-tuned for Chat.

We will not delete or disable the Generate endpoint, but we suggest fine-tuning models for use with the Chat endpoint in the future.

## Related pages

- [Changelog](../changelog.md)
- [Cohere](../index.md)
- [Cohere API](./cohere-api-index.md)
- [Cohere Labs](./cohere-labs-index.md)
- [Cohere Platform](./cohere-platform-index.md)
- [Cookbooks](./cookbooks-index.md)
- [Deployment Options](./deployment-options-index.md)
- [Embeddings (Vectors, Search, Retrieval)](./embeddings-vectors-search-retrieval-index.md)
- [Get Started](./get-started-index.md)
- [Going to Production](./going-to-production-index.md)

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