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NEW YORK DAWN™ > Blog > Technology > Open Deep Search arrives to problem Perplexity and ChatGPT Search
Open Deep Search arrives to problem Perplexity and ChatGPT Search
Technology

Open Deep Search arrives to problem Perplexity and ChatGPT Search

Last updated: April 4, 2025 9:05 pm
Editorial Board Published April 4, 2025
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Researchers at Sentient Basis have launched Open Deep Search (ODS), an open-source framework that may match the standard of proprietary AI search options akin to Perplexity and ChatGPT Search. ODS equips giant language fashions (LLMs) with superior reasoning brokers that may use net search and different instruments to reply questions. 

For enterprises searching for customizable AI search instruments, ODS gives a compelling, high-performance various to closed business options.

The AI search panorama

Trendy AI search instruments like Perplexity and ChatGPT Search can present up-to-date solutions by combining LLMs’ data and reasoning capabilities with net search. Nevertheless, these options are usually proprietary and closed-source, making it tough to customise them and undertake them for particular functions. 

“Most innovation in AI search has happened behind closed doors. Open-source efforts have historically lagged in usability and performance,” Himanshu Tyagi, co-founder of Sentient, instructed VentureBeat. “ODS aims to close that gap, showing that open systems can compete with, and even surpass, closed counterparts on quality, speed, and flexibility.”

Open Deep Search (ODS) structure

Open Deep Search (ODS) is designed as a plug-and-play system that may be built-in with open-source fashions like DeepSeek-R1 and closed fashions like GPT-4o and Claude.

ODS includes two core elements, each leveraging the chosen base LLM:

Open Search Instrument: This element takes a question and retrieves info from the online that may be given to the LLM as context. The open Search Instrument performs a number of key actions to enhance search outcomes and make sure that it gives related context to the mannequin. First, it rephrases the unique question in numerous methods to broaden the search protection and seize numerous views. The software then fetches outcomes from a search engine, extracts context from the highest outcomes (snippets and linked pages), and applies chunking and re-ranking methods to filter for probably the most related content material. It additionally has customized dealing with for particular sources like Wikipedia, ArXiv and PubMed, and could be prompted to prioritize dependable sources when encountering conflicting info.

Open Reasoning Agent: This agent receives the person’s question and makes use of the bottom LLM and numerous instruments (together with the Open Search Instrument) to formulate a remaining reply. Sentient gives two distinct agent architectures inside ODS:

ODS-v1: This model employs a ReAct agent framework mixed with Chain-of-Thought (CoT) reasoning. ReAct brokers interleave reasoning steps (“thoughts”) with actions (like utilizing the search software) and observations (the outcomes of instruments). ODS-v1 makes use of ReAct iteratively to reach at a solution. If the ReAct agent struggles (as decided by a separate choose mannequin), it defaults to a CoT Self-Consistency, which samples a number of CoT responses from the mannequin and makes use of the reply that exhibits up most frequently.

ODS-v2: This model leverages Chain-of-Code (CoC) and a CodeAct agent, carried out utilizing the Hugging Face SmolAgents library. CoC makes use of the LLM’s potential to generate and execute code snippets to resolve issues, whereas CodeAct makes use of code era for planning actions. ODS-v2 can orchestrate a number of instruments and brokers, permitting it to deal with extra complicated duties that will require subtle planning and probably a number of search iterations.

ODS Open Reasoning AgentODS structure Credit score: arXiv

“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 stated.

Efficiency and sensible outcomes

Sentient evaluated ODS by pairing it with the open-source DeepSeek-R1 mannequin and testing it towards common closed-source rivals like Perplexity AI and OpenAI’s GPT-4o Search Preview, in addition to standalone LLMs like GPT-4o and Llama-3.1-70B. They used the FRAMES and SimpleQA question-answering benchmarks, adapting them to guage the accuracy of search-enabled AI methods.

The outcomes exhibit ODS’s competitiveness. Each ODS-v1 and ODS-v2, when mixed with DeepSeek-R1, outperformed Perplexity’s flagship merchandise. Notably, ODS-v2 paired with DeepSeek-R1 surpassed the GPT-4o Search Preview on the complicated FRAMES benchmark and practically matched it on SimpleQA.

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An fascinating remark was the framework’s effectivity. The reasoning brokers in each ODS variations realized to make use of the search software judiciously, typically deciding whether or not a further search was needed based mostly on the standard of the preliminary outcomes. As an example, ODS-v2 used fewer net searches on the easier SimpleQA duties in comparison with the extra complicated, multi-hop queries in FRAMES, optimizing useful resource consumption.

Implications for the enterprise

For enterprises searching for highly effective AI reasoning capabilities grounded in real-time info, ODS presents a promising resolution that gives a clear, customizable and high-performing various to proprietary AI search methods. The flexibility to plug in most popular open-source LLMs and instruments provides organizations higher management over their AI stack and avoids vendor lock-in.

“ODS was built with modularity in mind,” Tyagi stated. “It selects which tools to use dynamically, based on descriptions provided in the prompt. This means it can interact with unfamiliar tools fluently—as long as they’re well-described—without requiring prior exposure.”

Nevertheless, he acknowledged that ODS efficiency can degrade when the toolset turns into bloated, “so careful design matters.”

Sentient has launched the code for ODS on GitHub.

“Initially, the strength of Perplexity and ChatGPT was their advanced technology, but with ODS, we’ve leveled this technological playing field,” Tyagi stated. “We now aim to surpass their capabilities through our ‘open inputs and open outputs’ strategy, enabling users to seamlessly integrate custom agents into Sentient Chat.”

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