Comment by eellpp
Google had less incentive. Their incentive was to keep API bottled up and in brewing as long as possible so their existing moats in search, YouTube can extend in other areas. With openai they are forced to compete or perish.
Even with gemini in lead, its only till they extinguish or make chatgpt unviable for openai as business. OpenAI may loose the talent war and cease to be leader in this domain against google (or Facebook) , but in longer term their incentive to break fresh aligns with average user requirements . With Chinese AI just behind, may be google/microsoft have no choice either