Can we trust AI to tell the truth?

Can we trust AI to tell the truth? | GZERO World

Is it possible to create artificial intelligence that doesn't lie?

On GZERO World with Ian Bremmer, cognitive scientist, psychologist, and author Gary Marcus sat down to unpack some of the major recent advances–and limitations–in the field of generative AI. Despite large language model tools like ChatGPT doing impressive things like writing movie scripts or college essays in a matter of seconds, there’s still a lot that artificial intelligence can’t do: namely, it has a pretty hard time telling the truth.

So how close are we to creating AI that doesn’t hallucinate? According to Marcus, that reality is still pretty far away. So much money and research has gone into the current AI bonanza, Marcus thinks it will be difficult to for developers to stop and switch course unless there’s a strong financial incentive, like Chat Search, to do it. He also believes computer scientists shouldn’t be so quick to dismiss what’s known as “good old fashioned AI,” which are systems that translate symbols into logic based on a limited set of facts and don't make things up the way neural networks do.

Until there is a real breakthrough or new synthesis in the field, Marcus thinks we’re a long way from truthful AI, and incremental updates to the current large language models will continue to generate false information. “I will go on the record now in saying GPT-5 will [continue to hallucinate],” Marcus says, “If it’s just a bigger version trained on more data, it will continue to hallucinate. And the same with GPT-6.”

Watch the full interview on GZERO World, in a new episode premiering on September 8, 2023 on US public television.

Watch GZERO World with Ian Bremmer every week at gzeromedia.com/gzeroworld or on US public television. Check local listings.

More from GZERO Media

- YouTube

Tensions in the Middle East escalate as Israel launches a surprise military strike against Iran, prompting international concern and speculation about broader conflict. In his latest Quick Take, Ian Bremmer calls Israel’s strike on Iran “a huge success for the Israelis” and a significant blow to Iran’s regional influence.

Iranian policemen monitor an area near a residential complex that is damaged in Israeli attacks in Tehran, Iran, on June 13, 2025.
Morteza Nikoubazl/NurPhoto

Israel bombed Iran’s nuclear facilities Thursday night, causing “significant damage” at the country’s main enrichment plant, killing leading Iranian military figures and nuclear scientists, and sparking fears that the Middle East is on the verge of a wider war.

A tank on display at a park in Washington, D.C., on June 12, 2025, two days ahead of a military parade commemorating the U.S. Army's 250th anniversary and coinciding with President Donald Trump's 79th birthday.

Kyodo via Reuters Connect

The official reason for this weekend’s military parade in Washington DC is to commemorate the 250th anniversary of the US Army – but the occasion also just happens to fall on President Donald Trump’s 79th birthday.