Seekr provides AI-powered solutions for structured, explainable, and transparent AI interactions.
This guide provides a quick overview for getting started with Seekr chat models. For detailed documentation of all ChatSeekrFlow features and configurations, head to the API reference.

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Overview

ChatSeekrFlow class wraps a chat model endpoint hosted on SeekrFlow, enabling seamless integration with LangChain applications.

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Integration Details

ClassPackageLocalSerializablePackage downloadsPackage latest
ChatSeekrFlowseekrai❌betaPyPI - DownloadsPyPI - Version

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Model Features

Tool callingStructured outputJSON modeImage inputAudio inputVideo inputToken-level streamingNative asyncToken usageLogprobs
✅✅✅❌❌❌✅❌✅❌

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Supported Methods

ChatSeekrFlow supports all methods of ChatModel, except async APIs.

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Endpoint Requirements

The serving endpoint ChatSeekrFlow wraps must have OpenAI-compatible chat input/output format. It can be used for:
  1. Fine-tuned Seekr models
  2. Custom SeekrFlow models
  3. RAG-enabled models using Seekr’s retrieval system
For async usage, please refer to AsyncChatSeekrFlow (coming soon).

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Getting Started with ChatSeekrFlow in LangChain

This notebook covers how to use SeekrFlow as a chat model in LangChain.

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Setup

Ensure you have the necessary dependencies installed: 
pip install seekrai langchain langchain-community
You must also have an API key from Seekr to authenticate requests. 
# Standard library
import getpass
import os

# Third-party
from langchain.prompts import ChatPromptTemplate
from langchain.schema import HumanMessage
from langchain_core.runnables import RunnableSequence

# OSS SeekrFlow integration
from langchain_seekrflow import ChatSeekrFlow
from seekrai import SeekrFlow

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API Key Setup

You’ll need to set your API key as an environment variable to authenticate requests. Run the below cell. Or manually assign it before running queries: 
SEEKR_API_KEY = "your-api-key-here"

os.environ["SEEKR_API_KEY"] = getpass.getpass("Enter your Seekr API key:")

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Instantiation

os.environ["SEEKR_API_KEY"]
seekr_client = SeekrFlow(api_key=SEEKR_API_KEY)

llm = ChatSeekrFlow(
    client=seekr_client, model_name="meta-llama/Meta-Llama-3-8B-Instruct"
)

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Invocation

response = llm.invoke([HumanMessage(content="Hello, Seekr!")])
print(response.content)

Hello there! I'm Seekr, nice to meet you! What brings you here today? Do you have a question, or are you looking for some help with something? I'm all ears (or rather, all text)!

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Chaining

prompt = ChatPromptTemplate.from_template("Translate to French: {text}")

chain: RunnableSequence = prompt | llm
result = chain.invoke({"text": "Good morning"})
print(result)

content='The translation of "Good morning" in French is:\n\n"Bonne journée"' additional_kwargs={} response_metadata={}

def test_stream():
    """Test synchronous invocation in streaming mode."""
    print("\n🔹 Testing Sync `stream()` (Streaming)...")

    for chunk in llm.stream([HumanMessage(content="Write me a haiku.")]):
        print(chunk.content, end="", flush=True)


# ✅ Ensure streaming is enabled
llm = ChatSeekrFlow(
    client=seekr_client,
    model_name="meta-llama/Meta-Llama-3-8B-Instruct",
    streaming=True,  # ✅ Enable streaming
)

# ✅ Run sync streaming test
test_stream()

🔹 Testing Sync `stream()` (Streaming)...
Here is a haiku:

Golden sunset fades
Ripples on the quiet lake
Peaceful evening sky

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Error Handling & Debugging

# Define a minimal mock SeekrFlow client
class MockSeekrClient:
    """Mock SeekrFlow API client that mimics the real API structure."""

    class MockChat:
        """Mock Chat object with a completions method."""

        class MockCompletions:
            """Mock Completions object with a create method."""

            def create(self, *args, **kwargs):
                return {
                    "choices": [{"message": {"content": "Mock response"}}]
                }  # Mimic API response

        completions = MockCompletions()

    chat = MockChat()


def test_initialization_errors():
    """Test that invalid ChatSeekrFlow initializations raise expected errors."""

    test_cases = [
        {
            "name": "Missing Client",
            "args": {"client": None, "model_name": "seekrflow-model"},
            "expected_error": "SeekrFlow client cannot be None.",
        },
        {
            "name": "Missing Model Name",
            "args": {"client": MockSeekrClient(), "model_name": ""},
            "expected_error": "A valid model name must be provided.",
        },
    ]

    for test in test_cases:
        try:
            print(f"Running test: {test['name']}")
            faulty_llm = ChatSeekrFlow(**test["args"])

            # If no error is raised, fail the test
            print(f"❌ Test '{test['name']}' failed: No error was raised!")
        except Exception as e:
            error_msg = str(e)
            assert test["expected_error"] in error_msg, f"Unexpected error: {error_msg}"
            print(f"✅ Expected Error: {error_msg}")


# Run test
test_initialization_errors()

Running test: Missing Client
✅ Expected Error: SeekrFlow client cannot be None.
Running test: Missing Model Name
✅ Expected Error: A valid model name must be provided.

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API reference