Keywords AI
Carbon (Perplexity) vs Haystack
Compare Carbon (Perplexity) and Haystack side by side. Both are tools in the RAG Frameworks category.
Quick Comparison
| Category | RAG Frameworks | RAG Frameworks |
| Pricing | usage-based | Open Source |
| Best For | B2B startups needing data ingestion from multiple sources | Developers who need a modular, composable framework for building production RAG applications |
| Website | carbon.ai | haystack.deepset.ai |
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| Use Cases | — |
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When to Choose Carbon (Perplexity) vs Haystack
- Customizable RAG pipelines
- Document search and QA systems
- Enterprise knowledge management
About Carbon (Perplexity)
Carbon, acquired by Perplexity in December 2024, provided pre-built data connectors for ingesting unstructured data from 25+ sources into LLM applications. Its managed API was wound down in March 2025, with its technology now integrated into Perplexity's enterprise data connectivity stack. Carbon's connectors supported Google Drive, Notion, Slack, Confluence, and other popular data sources for RAG pipelines.
About Haystack
Haystack by deepset is an open-source framework for building production-ready RAG pipelines, semantic search, and question answering systems. It provides modular components for document processing, retrieval, and generation with support for multiple LLM providers and vector stores.
What is RAG Frameworks?
Frameworks and tools for building retrieval-augmented generation pipelines—document parsing, chunking, indexing, and query engines that connect LLMs to your data.
Browse all RAG Frameworks tools →