Originally Published: 08 FEB 23 13:33 ET

Updated: 08 FEB 23 13:48 ET

By Catherine Thorbecke, CNN

(CNN) -- Google's much-hyped new AI chatbot tool Bard, which has yet to be released to the public, is already being called out for an inaccurate response it produced in a demo this week.

In the demo, which was posted by Google on Twitter, a user asks Bard: "What new discoveries from the James Webb Space Telescope can I tell my 9 year old about?" Bard responds with a series of bullet points, including one that reads: "JWST took the very first pictures of a planet outside of our own solar system."

According to NASA, however, the first image showing an exoplanet -- or any planet beyond our solar system -- was actually taken by the European Southern Observatory's Very Large Telescope nearly two decades ago, in 2004.

Bard's blunder highlights the challenge for Google as it races to integrate the same AI technology that underpins Microsoft-backed ChatGPT into its core search engine. In trying to keep pace with what some think could be a radical change spurred by conversational AI in how people search online, Google now risks upending its search engine's reputation for surfacing reliable information.

Like ChatGPT, Bard is built on a large language model, which is trained on vast troves of data online in order to generate compelling responses to user prompts. Experts have long warned that these tools have the potential to spread inaccurate information.

In an apparent attempt to address that concern, Google previously said Bard would first be opened up to "trusted testers" this week, with plans to make it available to the public in the coming weeks.

"This highlights the importance of a rigorous testing process, something that we're kicking off this week with our Trusted Tester program," a Google spokesperson told CNN in a statement Wednesday about the factual error. "We'll combine external feedback with our own internal testing to make sure Bard's responses meet a high bar for quality, safety and groundedness in real-world information."

Shares for Google-parent Alphabet fell as much as 8% in midday trading Wednesday after the inaccurate response from Bard was first reported by Reuters.

Google unveiled Bard earlier this week as part of an apparent bid to compete with the viral success of ChatGPT, which has been used to generate essays, song lyrics and responses to questions that one might previously have searched for on Google. ChatGPT's meteoric rise in popularity has reportedly prompted Google's management to declare a "code red" situation for its search product.

On Wednesday, Google held an event in its Paris office where the tech giant detailed plans to use AI technology to radically change how people search for information online. Google's event came one day after rival Microsoft announced a revamped version of Bing powered by a more advanced version of the AI used by ChatGPT. (Microsoft is investing billions in OpenAI, the company behind ChatGPT.)

In the presentation Wednesday, a Google executive teased plans to use this technology to offer more complex and conversational responses to queries, including providing bullet points ticking off the best times of year to see various constellations and also offering pros and cons for buying an electric vehicle.

The executive said AI technology would pave the way for the "next frontier of our information products."