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Open Deep Search arrives to challenge Perplexity and ChatGPT Search


This open source framework matches the performance of Perplexity and ChatGPT Search with greater transparency and control.

“While tools like ChatGPT or Grok offer ‘deep research’ via conversational agents, ODS operates at a different layer—more akin to the infrastructure behind Perplexity AI—providing the underlying architecture that powers intelligent retrieval, not just summaries,” Tyagi said. Sentient evaluated ODS by pairing it with the open-source DeepSeek-R1 model and testing it against popular closed-source competitors like Perplexity AI and OpenAI’s GPT-4o Search Preview, as well as standalone LLMs like GPT-4o and Llama-3.1-70B. For instance, ODS-v2 used fewer web searches on the simpler SimpleQA tasks compared to the more complex, multi-hop queries in FRAMES, optimizing resource consumption.

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