Building Enterprise-Scale RAG Systems with Fireworks AI and MongoDB Atlas

By Aishwarya Srinivasan|4/9/2025

This project is completely open-source, including all documentation, code, and tests, which can be found at: https://github.com/shubcodes/earnings-ai-demo

In the fast-paced world of enterprise data, extracting actionable insights from vast amounts of unstructured information is a challenge many organizations face. Whether it’s earnings calls, financial reports, legal documents, or technical specifications, the ability to retrieve, synthesize, and act on this information quickly can make or break a company’s competitive edge. Enter Retrieval-Augmented Generation (RAG) – a cutting-edge solution combining Large Language Models (LLMs) with powerful retrieval systems to deliver contextually rich, actionable insights in real time.

Why Enterprises Need RAG

Let’s face it: traditional search systems just don’t cut it anymore. They’re limited to keyword matching and fail to grasp the semantic and contextual relationships necessary for enterprise-scale decision-making. Here’s why RAG stands out:

1. Multi-Format Analysis: RAG handles data from PDFs, Word documents, spreadsheets, and even audio recordings, breaking silos between formats.
2. Cross-Document Insights: It synthesizes information across multiple documents, answering complex queries like “How has our AI strategy evolved over the last three earnings calls?”
3. Real-Time Results: Sub-second query responses empower businesses to act on insights immediately.
4. Natural Language Interaction: With RAG, asking questions feels intuitive, like speaking to a knowledgeable colleague.

High-Level Architecture

Our enterprise RAG system is built using Fireworks AI for inference and MongoDB Atlas for vector storage. Here’s an overview of the pipeline:

Document Processing Pipeline

The ability to process diverse document formats is the cornerstone of any robust RAG system. Without this capability, organizations are left with data silos and limited insights. The document processing pipeline ensures that content from PDFs, DOCX files, and plain text is not only extracted but also enriched with metadata for better querying.

class DocumentExtractor:
    def extract_text(self, file_path: str) -> Dict:
        path = Path(file_path)
        if path.suffix.lower() == '.pdf':
            text = self._extract_pdf(path)
        elif path.suffix.lower() == '.docx':
            text = self._extract_docx(path)
        else:
            text = path.read_text(encoding='utf-8')

        return {
            "text": text,
            "metadata": {
                "filename": path.name,
                "file_type": path.suffix.lower()[1:],
                "file_size": path.stat().st_size
            }
        }

Key Features:

• Format-Specific Processing: Handles PDFs, DOCX, and text files with tailored methods.
• Metadata Preservation: Retains file context for better querying.
• Error Handling: Detects and logs corrupt or unsupported files.

Audio Transcription with Fireworks Whisper V3 Turbo

Efficient transcription of audio content is another vital component. Fireworks’ Whisper V3 Turbo can transcribe one hour of audio in just 3 seconds, making it 20x faster than competing solutions such as OpenAI Whisper. This speed advantage significantly reduces latency and enhances user experiences.

class AudioTranscriber:
    def __init__(self, api_key: str, base_url: str = "https://api.fireworks.ai/audio/v3-turbo"):
        self.client = AudioInference(api_key=api_key, base_url=base_url)

    def transcribe_audio(self, file_path: str) -> Dict:
        with open(file_path, 'rb') as audio_file:
            response = self.client.transcribe(audio=audio_file.read())
        return {
            "transcription": response.text,
            "duration": response.metadata.duration
        }

Key Advantages:

• Speed: Processes audio up to 900x faster than real-time.
• Cost Efficiency: 10x cheaper than most alternatives.
• Feature Completeness: Includes transcription alignment, translation, and preprocessing capabilities.

Vector Embedding

Once the content is extracted, converting it into vector embeddings allows the system to understand and process queries semantically. This step is critical for enabling similarity searches and advanced data retrieval.

def generate_document_embedding(self, text: str, prefix: str = "", method: str = "mean") -> List[float]:
    chunks = self._chunk_text(text)
    chunk_embeddings = self.generate_embeddings_batch(chunks, prefix)

    if method == "mean":
        return np.mean(chunk_embeddings, axis=0).tolist()
    elif method == "max":
        return np.max(chunk_embeddings, axis=0).tolist()

Why This Works:

1. Chunking: Splits documents into manageable parts while maintaining context.
2. Batch Processing: Optimizes GPU utilization.
3. Aggregation: Combines embeddings for holistic document representation.

MongoDB Atlas for Vector Search

Efficient storage and retrieval of vector embeddings ensure that enterprise systems can handle queries at scale without compromising performance. MongoDB Atlas provides a scalable, high-performance solution for this task.

def query_similar(self, query_embedding: List[float], limit: int = 5, filters: Dict = None) -> List[Dict]:
    pipeline = [
        {
            "$vectorSearch": {
                "index": "vector_index",
                "queryVector": query_embedding,
                "path": "embeddings",
                "numCandidates": limit * 10,
                "limit": limit
            }
        }
    ]

    if filters:
        pipeline.append({"$match": filters})

    pipeline.append({
        "$project": {
            "text": 1,
            "metadata": 1,
            "score": {"$meta": "vectorSearchScore"}
        }
    }

Fireworks AI: The Intelligence Layer

The intelligence of the RAG pipeline lies in its ability to synthesize information and generate coherent, actionable answers. Fireworks AI powers this layer, ensuring low-latency, high-accuracy responses. By integrating with MongoDB Atlas for semantic retrieval, Fireworks AI orchestrates an end-to-end workflow where user queries are processed efficiently and contextually enriched responses are returned.

Query Process and Contextual Retrieval

When a user submits a query, the RAG system performs the following steps:

1. Query Embedding Generation: The user’s query is transformed into a vector embedding using a pre-trained embedding model.
2. Semantic Retrieval: This embedding is sent to the MongoDB Atlas vector store, where it matches against the stored document embeddings to retrieve the top relevant documents. The retrieval process ranks these documents based on their similarity to the query, measured by cosine similarity or other vector distance metrics.
3. Contextual Aggregation: The retrieved documents are then aggregated to form a cohesive context block. This includes the full text of relevant sections, metadata such as document titles, and their confidence scores.
4. LLM Query Processing: The aggregated context is appended to the user’s query, which is passed into the LLM hosted on Fireworks AI. The LLM generates an answer based on the query and the contextual information.
5. Response Augmentation: Alongside the generated response, the system includes the source documents and their confidence scores to ensure transparency. Confidence scores indicate the retrieval model’s certainty in the relevance of each document.

Transparency and Confidence

Including the source and confidence score in the response provides critical benefits:

• Traceability: Users can see exactly which documents informed the response, improving trust in the system.
• Decision Confidence: Higher confidence scores reassure users about the reliability of the retrieved information.
• Iterative Queries: If needed, users can refine queries based on the provided sources, enabling a more interactive experience.

Performance & Fireworks Metrics

To highlight the system’s efficiency:

Fireworks achieves remarkable performance through advanced quantization techniques and hardware optimizations, ensuring top-tier throughput and low cost without sacrificing accuracy.

Future Additions & Scalability

The future of enterprise RAG systems lies in expanding capabilities while maintaining efficiency. Here’s how Fireworks AI and MongoDB Atlas are set to evolve:

Multi-Agent Orchestration

Imagine a system where specialized agents handle specific types of data. For instance:

• Financial Insights: One agent focuses on financial documents, offering deep analysis of earnings reports and balance sheets.
• Legal Parsing: Another agent excels at interpreting legal contracts, highlighting key clauses and compliance risks.
• Human Resources: A third agent manages HR documents, extracting employee trends and policy effectiveness.

These agents would collaborate within a unified architecture, enabling seamless cross-domain queries.

Enhanced Data Structuring

Structured data, such as tables and charts, remains a challenge for many RAG systems. Future iterations will integrate advanced table-parsing models, enabling:

• Time-Series Analysis: Automatic interpretation of financial trends from spreadsheets.
• Graph Insights: Extraction of relationships and hierarchies from organizational charts.

Cross-Company Insights

Organizations often operate in competitive landscapes where comparative analysis is key. Multi-tenant RAG systems will allow companies to:

• Benchmark Performance: Compare metrics against industry peers.
• Market Analysis: Synthesize competitor strategies from publicly available data.
• Collaborative Insights: Securely share and analyze data across subsidiaries or partners.

Dynamic Scaling and Optimization

Fireworks AI will continue to push boundaries in scalability by integrating:

• Speculative Decoding: Predicting user intents to prefetch relevant documents, reducing query latency.
• Adaptive Workloads: Dynamic resource allocation based on query complexity and system demand.
• Federated Learning: Securely training models across distributed data sources to enhance performance without compromising privacy.

Advantages of the Fireworks + MongoDB Atlas Stack

1. Unmatched Speed: Fireworks AI processes tasks 20x faster than many competitors, including OpenAI.
2. Flexibility: Offers state-of-the-art embedding models and custom deployments.
3. Scalability: MongoDB Atlas’ vector search supports millions of documents efficiently.
4. Advanced Features: Includes speculative decoding, dynamic resource allocation, and compliance with SOC2 and HIPAA standards.
5. Cost Efficiency: Reduced operational costs with optimized compute resources.

Conclusion & Call-to-Action

The Fireworks AI + MongoDB Atlas stack revolutionizes how enterprises extract insights from unstructured data. By leveraging cutting-edge transcription, retrieval, and generation technologies, organizations can accelerate decision-making, reduce time-to-insight, and unlock the full potential of their data.

Ready to transform your data strategy? Start building on fireworks.ai