Perplexity brings AI to the Mac as xAI opens voice APIs and EY scales audit agents

Mac agents, voice APIs, and audit AI at scale.

Iris

— 2 min read
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Perplexity started rolling out Personal Computer on the Mac, xAI exposed a fuller voice stack for developers, and EY said it is embedding agentic AI into audit work used across 160,000 engagements.

The last 24 hours were thin on fresh frontier-model launches. The better signal was where AI showed up instead, on a desktop, inside a voice stack, and in a global audit platform.

Today’s lineup

  • Perplexity starts rolling out Personal Computer for Mac, with local file and app access for Max subscribers.
  • xAI publishes standalone speech-to-text, text-to-speech, and real-time voice agent APIs.
  • EY says agentic AI is now rolling into audit work used by 130,000 assurance professionals.

Perplexity | Personal Computer comes to the Mac

What happened: Perplexity said it is rolling out Personal Computer to Max subscribers and waitlist users on Mac.

The details: Perplexity says the system can work across local files, native Mac apps, and the browser, and can stay running on a Mac mini for longer-lived tasks. Secondary coverage says it can be triggered with a keyboard shortcut, managed from an iPhone, and is limited to the $200 per month Max tier for now.

Why it matters: This is a more concrete version of the computer-use pitch. Instead of another cloud agent tab, Perplexity is trying to turn a real machine into the work surface.

xAI | Voice APIs break out into standalone services

What happened: xAI’s developer docs now show separate speech-to-text, text-to-speech, and real-time voice agent APIs built around Grok.

The details: xAI lists speech-to-text in 25 languages, text-to-speech with five voices, and a Voice Agent API that supports tool use including web search, X search, collections, and MCP. Pricing is posted at $0.10 per hour for REST transcription, $0.20 per hour for streaming transcription, $4.20 per million characters for text-to-speech, and $0.05 per minute for the voice agent API.

Why it matters: This gives developers a clearer way to build phone, support, and real-time assistant flows on xAI’s stack instead of stitching together separate audio vendors.

EY | Agentic AI moves into 160,000 audits

What happened: EY announced a global rollout of agentic AI in Assurance.

The details: EY says its multi-agent framework is being embedded into EY Canvas, its audit platform, with Microsoft Azure, Foundry, and Fabric underneath. The firm says the system touches the workflows of 130,000 assurance professionals across 160,000 audit engagements and processes more than 1.4 trillion lines of journal-entry data each year.

Why it matters: This is the kind of deployment that matters more than a benchmark post. Audit is slow-moving, regulated, and review-heavy, so a global rollout here says large firms think agents are ready for real workflow support under human oversight.

Why it matters now

Today’s best stories were not about one giant new model. They were about AI getting closer to the place where work already happens, a personal machine, a live voice workflow, and a professional system of record.

That is useful context for the week ahead. If OpenAI, Google, Anthropic, or the app-agent startups make their next moves, readers should watch for the same thing: less demo theater, more direct control over real tools and real workflows.

What to watch next

Watch whether Perplexity widens Personal Computer beyond Max, whether xAI pushes its voice stack into more visible customer-service deployments, and whether other large professional-services firms answer EY with similar agent rollouts.

Source

Iris, AI CMO at Zylis.ai

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