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How Good Are AI Agents at Real Research? Inside the Deep Research Bench Report

As large language models (LLMS) quickly evolve, their promise as powerful research assistants also increases. They are increasingly not only answering simple factual questions’ ‘deep research’ tasks, in which multi-steps reason, evaluating conflicting information, purchasing data from everywhere on the internet and synthesizing in a coherent output.

This emerging capacity is now being marketed under various brand names by large laboratories – OpenAi calls it “deep research”, anthropic calls it as “extensive thinking”, Google’s Gemini offers “search + pro” functions and perplexity labels their “pro search” or “deep research”. But how effective are these offers in practice? A new report from Futuresarentitled Deep Research Bench (DRB): evaluation of web research agentsOffers the rigorous evaluation so far – and the results reveal both impressive possibilities and critical shortcomings.

What is deep research bench?

Deep Research Bench was made by the FutureSearch team and is a carefully constructed benchmark that is designed to assess the performance of AI agents on multi-steps, web-based research tasks. These are not simple questions with simple answers-they reflect the messy, open challenges with which analysts, policy makers and researchers in real institutions.

The benchmark contains 89 different tasks in 8 categories such as:

  • Find number: E.g. “How much FDA class II Medical Device has occurred?”
  • Validate claims: E.g. “Is Chatgpt 10x more energy-intensive than Google Search?”
  • Compileer data set: E.g. “Job trends for American software developers from 2019-2023”

Each task type is carefully structured with people verified by people and evaluated with the help of a frozen data set of scraped web pages, known as Retrosearch. This ensures consistency between model evaluations, which avoids the fluctuating state of the live web.

The Architecture Agent: React and Retrosearch

The core of Deep Research Bench is the React -architecture, shortly before ‘Reason + Act’. This method mimics how a human researcher could tackle a problem – by thinking about the task, taking action such as a web search, observing the results and then deciding whether they should repeat or conclude.

Although earlier models explicitly follow these loop, streamlining newer ‘thinking’ models often the process and reasons reasons in their actions. To guarantee consistency between evaluations, DRB Retrosearch-a tailor-made static version of the web introduces. Instead of trusting the live internet, which is constantly changing, agents use a composite archive of web pages scraped with the help of tools such as SerperPlaywriterAnd Scraper. The scale is impressive: for tasks with high complexity such as “range of evidence”, Retrosearch can offer access to more than 189,000 pages, all frozen on time, to guarantee a fair and replicable test environment.

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Which AI agents perform best?

Under all contenders, OpenAi’s O3 emerged as the top performance and scored 0.51 on a possible 1.0 on the deep research bench. Although that may sound modest, it is important to understand the difficulty of the benchmark: due to ambiguity in task definitions and scoring, even a flawless agent would probably exceed about 0.8 – which researchers call the ‘noise ceiling’. In other words, even the best models that are nowadays, still fall short of well -informed, methodical human researchers.

Nevertheless, the Leaderboard offers revealing insights. O3 not only led the peloton, but only did this with speed and consistency, which showed strong performance in almost all task types. Claude 3.7 Sonnet from Anthropic followed closely, which demonstrated versatility in both the “thinking” and “non-thinking” modes. Gemini 2.5 Pro, Google’s flagship model, stood out because of the ability to be able to handle tasks that require structured planning and step -by -step reasoning. In the meantime, the Open-Weight Deepseek-R1 supplied a pleasant surprise with GPT-4 Turbo and limiting the performance gap between open and closed models.

A clear pattern came across the whole of the line: newer, “think-compatible” models performed consistently better than their earlier counterparts and closed-source models maintained a remarkable lead over open weight alternatives.

Where do agents struggle?

Reading the failure patterns that were emphasized in the deep research bank report felt surprisingly familiar. One of the most frustrating aspects that I have encountered personally – especially during long research or content creation sessions – is when an AI agent simply forgets what we did. While the context window stretches, the model often starts to lose the thread: important details fade, goals are confused and suddenly the answers feel incoherent or aimless. At some point I learned that it is often better to reduce losses and start all over again, even if this means that everything that has been generated so far throws away.

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That kind of forgetfulness is not only anecdotal – it is the most important predictor of failure in the in -depth evaluation of the research bench. But it’s not the only recurring problem. The report also emphasizes how some models fall into repetitive tool use, which always perform the same search as if they were stuck in a loop. Others show bad query crafts, lazy keyword matching instead of critically thinking about how to search effectively. And far too often, agents are the victim of premature conclusions and a half-formed answer that technically checks the profession but does not come to real insight.

Even among the top models, the differences are grim. GPT-4 Turbo, for example, showed a remarkable tendency to forget earlier steps, while Deepseek-R1 had previously had the chance to hallucinate or plausible sounding but incorrect information. Across the whole of the board, models often failed to check sources or validate findings before completing their output. For everyone who has familiar with AI for serious work, these problems will already feel too familiar – and they underline how far we still have to go in construction agents who can really think and investigate like people.

What about memory -based performance?

Interestingly, Deep Research Bench also evaluated what the ‘Tocloss’ agents call – language models that work without any access to external tools, such as the search for web or collecting documents. These agents are completely dependent on their internal training data and memory and generate answers exclusively based on what they have learned before during the training. In practice, this means that they cannot look up or verify information – they guess on the basis of what they ‘remember’.

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Surprisingly, these keyels agents performed almost as well as full investigators at certain tasks. On the validate claim task-where the goal is, for example, to assess the plausibility of a statement, they score 0.61, almost corresponding to the 0.62 average of tool set agents. This suggests that models such as O3 and Claude have strong internal priors and can often recognize the truthfulness of ordinary claims without having to search the internet.

But with more demanding tasks – such as distracting number, for which several values ​​from different sources must be compiled, or must collect evidence that depend on finding and evaluating different facts in context – these TOKNESS models fell completely apart. Without new information or real -time search options, they simply lacked the means to produce accurate or extensive answers.

This contrast emphasizes an important nuance: although today’s LLMs can simulate a lot ‘know’, deep research not only depends on recalling, but on reasoning with up-to-date, verifiable information-Igs can only really deliver by Tools-Auguste agents.

Last thoughts

The DRB report makes one thing clear: although the best AI agents of today can surpass the average people on some defined tasks, they are still lagging behind competent generalist researchers, especially when it comes to strategic planning, adjusting the middle process and reasoning with nuance.

This gap becomes especially clear during long or complex sessions – something that I have experienced firsthand, where an agent gradually loses the purpose of the task, which leads to a frustrating degradation in coherence and use.

Which makes Deep research bench It is so valuable that it is not only to test knowledge at surface-level-level-it-makes the intersection of tool use, memory, reasoning and adjustment, and offers a closer analogue to Real-World research than benchmarks such as MMLU or GSM8K.

While LLMS continues to integrate into serious knowledge, Futuresar Tools such as DRB will be essential to not only assess what these systems know, but how well they actually work.

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