Summary: Deepgram Nova-3 model launched

Why It Matters: This shows a new product is available.

What Changed:

• Removed the top navigation menu.
• Removed the "Explore more Deepgram APIs" section.
• Removed the interactive audio transcription demos.
• Removed the "Get $200 in free credits!" section.
• Removed the "Unbeatable value, unmatched performance" section.
• Removed the footer navigation links.
• Added text about the Nova-3 model.
• Added customer testimonials.