Skip to main content

ChatGPT’s awesome Deep Research gets a light version and goes free for all

Deep Research option for ChatGPT.
Nadeem Sarwar / Digital Trends

There’s a lot of AI hype floating around, and it seems every brand wants to cram it into their products. But there are a few remarkably useful tools, as well, though they are pretty expensive. ChatGPT’s Deep Research is one such feature, and it seems OpenAI is finally feeling a bit generous about it. 

The company has created a lightweight version of Deep Research that is powered by its new o4-mini language model. OpenAI says this variant is “more cost-efficient while preserving high quality.” More importantly, it is available to use for free without any subscription caveat. 

Recommended Videos

Why does it matter? 

Deep Research, as the name suggests, is an agentic feature that performs a comprehensive web research on any topic and provides responses in the form of a well-drafted paper. Compared to the typical chatbot answer, it feels more like a research assignment.

The lightweight version of deep research is powered by a version of OpenAI o4-mini and is nearly as intelligent as the deep research people already know and love, while being significantly cheaper to serve.

Responses will typically be shorter while maintaining the depth and… pic.twitter.com/H2UD5GThVj

— OpenAI (@OpenAI) April 24, 2025

You can narrow down the research to a specific type of sources, such as academic papers or corporate press releases, and get a well-curated multi-page answer with all the citations, headings, tables, and bullet points. In a nutshell, Deep Research accomplishes in minutes what would usually take hours of internet research and writing for a person. 

At the same time, this process is extremely resource-intensive, and that’s why it has remained exclusive to the paid ChatGPT users. Thanks to the new lightweight version, it is not only reaching out to free-tier users, but also expanding the search limit for subscribers. 

What’s the new benefit? 

OpenAI says ChatGPT users can launch up to five Deep Research queries each month. So far, the company has only allowed one attempt per month for free users. Google’s Gemini, Microsoft’s Copilot, and Perplexity also offer this convenience.

For users who pay a $20 monthly fee for a ChatGPT Plus subscription, they get a window of 25 Deep Research queries per month. The same limit is also applicable for ChatGPT’s Education, Team, and Enterprise packages. The $200/month Pro package will give you 250 attempts each month. 

Once that limit is exhausted, users are automatically shifted to the lightweight version of Deep Research. OpenAI says this iteration is “nearly as intelligent as the deep research people already know and love.” 

The only difference is that the length of responses will be smaller, but they won’t compromise on the depth of research. This is fantastic news for users who couldn’t afford a subscription fee, but still wanted to use a powerful AI tool that can get serious work done instead of just creating fun Ghibli-style images

Nadeem Sarwar
Nadeem is a tech and science journalist who started reading about cool smartphone tech out of curiosity and soon started…
Your politeness toward ChatGPT is increasing OpenAI’s energy costs 
ChatGPT's Advanced Voice Mode on a smartphone.

Everyone’s heard the expression, “Politeness costs nothing,” but with the advent of AI chatbots, it may have to be revised.

Just recently, someone on X wondered how much OpenAI spends on electricity at its data centers to process polite terms like “please” and “thank you” when people engage with its ChatGPT chatbot.

Read more
Why writing with ChatGPT actually makes my life harder
ChatGPT prompt bar.

I remember when ChatGPT first appeared, and the first thing everyone started saying was "Writers are done for." People started speculating about news sites, blogs, and pretty much all written internet content becoming AI-generated -- and while those predictions seemed extreme to me, I was also pretty impressed by the text GPT could produce.

Naturally, I had to try out the fancy new tool for myself but I quickly discovered that the results weren't quite as impressive as they seemed. Fast forward more than two years, and as far as my experience and my use cases go, nothing has changed: whenever I use ChatGPT to help with my writing, all it does is slow me down and leave me frustrated.

Read more
Fun things to ask ChatGPT now that it remembers everything
ChatGPT on a laptop

If you hadn't heard, ChatGPT's memory just got a whole lot better. Rolled out across the world to Plus and Pro users over the past few days, ChatGPT's various models can now reference almost any past conversation you had. It doesn't remember everything word for word, but can pull significant details, themes, and important points of reference from just about anything you've ever said to it.

It feels a little creepy at times, but ChatGPT can now be used for much more personalized tasks. OpenAI pitches this as a way to improve its scheduling feature to use it as a personal assistant, or to help you continue longer chats over extended periods of time. But it's also quite fun to see what ChatGPT can tell you by trawling throughh all your chatlogs. It's often surprising some of the answers it spits out in response.

Read more