Add Mistral Integration page

[TuanaCelik]

Currently, Mistral AI is supported via the OpenAIGenerator simply by providing the right model and API key. Let's add an integration page for Mistral which is slightly different to the rest:

• Explain that it's a guide on how to use OpenAIGenerator to make use of Mistral

We can explore adding full functionality as a separate integration next, and change the content of the integration tile accordingly.

Tasks

Beta Give feedback

1. Create a Mistral API Key #142
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[anakin87]

This works:

from haystack.components.generators.chat import OpenAIChatGenerator
from haystack.dataclasses import ChatMessage

api_key = "MISTRAL-API-KEY"
model = "mistral-medium"

client = OpenAIChatGenerator(
    api_key=api_key, model_name=model, api_base_url="https://api.mistral.ai/v1"
)

response = client.run(
    messages=[ChatMessage.from_user("What is the best French cheese?")]
)
print(response)

[anakin87]

Embedders

from haystack.components.embedders import OpenAITextEmbedder

api_key = "MISTRAL-API-KEY"
model = "mistral-embed"

embedder = OpenAITextEmbedder(api_key=api_key, model_name=model, api_base_url="https://api.mistral.ai/v1")

response = embedder.run(text="What is the best French cheese?")
print(response)
# {'embedding': [-0.0186004638671875, ...],
# 'meta': {'model': 'mistral-embed', 
#'usage': {'prompt_tokens': 9, 'total_tokens': 9, 'completion_tokens': 0}}}

[annthurium]

#125