Opus

Anthropic has expanded Claude's voice mode beyond Haiku to include the more capable Opus and Sonnet models across mobile, desktop, and web. Users can now switch models mid-conversation and use voice commands to compose and send emails via connected tools like Gmail.

xAI has released Grok 4.5, pricing it at $2 per million input tokens and $6 per million output tokens — significantly undercutting Anthropic's Opus 4.7 ($5/$25 per million). Elon Musk claims the model delivers comparable performance to Opus 4.7 while being faster and more token-efficient.