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The artificial intelligence (AI) search startup Liner announced on the 6th the launch of 'Liner Deep Research,' which conducts in-depth searches of vast amounts of data available on the web and generates more refined answers through logical reasoning.

Liner Deep Research enhances existing AI search capabilities to support in-depth answers based on deeper analysis and logical reasoning. It analyzes the core of user questions and establishes a detailed research plan to provide accurate and rich information.

By clicking the 'Deep Research' button below the search bar at Liner and entering a query, users can receive deep research results that strengthen the depth and logical coherence of answers by referencing more sources compared to Liner Basic and Liner Pro. Additionally, Liner Deep Research can be used up to 10 times a day for free, without the need for separate login or subscription, significantly expanding service accessibility.

The competitiveness of Deep Research lies in the accuracy of the richly provided research answers. Liner also possesses objective competitiveness in terms of accuracy. In the SimpleQ.A benchmark measuring AI fact-checking accuracy, Liner demonstrated overwhelming performance. After 'Liner Pro' recorded a score of 93.7, 'Liner Reasoning,' which enhances deep reasoning capabilities, achieved a score of 95.3, proving the reliability of the AI answers provided by Liner. In contrast, the recent SimpleQ.A score for OpenAI's GPT-4.5 was 62.5, while Perplexity Deep Research scored 93.9.

Additionally, the average response generation time for Perplexity Deep Research is reported to be 3 to 5 minutes, while OpenAI Deep Research takes around 10 minutes; unlike general AI searches, Deep Research is known to take a few minutes before providing answers. However, Liner Deep Research performs searches within 1 to 2 minutes, providing answers at least three times faster than other companies' deep research.

Liner CEO Kim Jin-woo noted, 'Liner Deep Research has been developed not only to maximize reasoning capabilities for high-level research but also to provide the most reliable information as an AI research tool. Liner is proving its unique performance alongside big tech corporations in the global AI search market through agentic search technology. With the launch of this deep research, we plan to surpass the limitations of AI search and offer an innovative user-centered search experience.'