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MorphoChrome pairs software with handheld device to make everyday objects iridescent

Gemstones like precious opal are beautiful to look at and deceivingly complex. As you look at such gems from different angles ...

Has Gemini surpassed ChatGPT? We put the AI models to the test.

The last time we did comparative tests of AI models from OpenAI and Google at Ars was in late 2023, when Google’s offering ...