Text generation - quickstart

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import cohere
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co = cohere.ClientV2(
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    "COHERE_API_KEY"
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)  # Get your free API key here: https://dashboard.cohere.com/api-keys

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response = co.chat(
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    model="command-a-plus-05-2026",
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    messages=[
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        {
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            "role": "user",
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            "content": "I'm joining a new startup called Co1t today. Could you help me write a one-sentence introduction message to my teammates.",
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        }
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    ],
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)
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print(response.message.content[0].text)

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messages = [
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    {
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        "role": "system",
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        "content": "You respond in concise sentences.",
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    },
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    {"role": "user", "content": "Hello"},
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]
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# User sends a message
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response = co.chat(
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    model="command-a-plus-05-2026",
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    messages=messages,
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)
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# The model responds
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print(
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    response.message.content[0].text
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)  # Hi, how can I help you today?
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# Append the model's response to the messages
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messages.append(response.message)
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# append another user message to the messages
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messages.append(
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    {
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        "role": "user",
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        "content": "I'm joining a new startup called Co1t today. Could you help me write a one-sentence introduction message to my teammates.",
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    }
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)
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# get the model's second response
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response = co.chat(
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    model="command-a-plus-05-2026",
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    messages=messages,
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)
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print(response.message.content[0].text)

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res = co.chat_stream(
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    model="command-a-plus-05-2026",
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    messages=[
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        {
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            "role": "user",
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            "content": "I'm joining a new startup called Co1t today. Could you help me write a one-sentence introduction message to my teammates.",
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        }
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    ],
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)
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for chunk in res:
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    if chunk.type == "content-delta":
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        print(chunk.delta.message.content.text, end="")