{
  "id": 3369294,
  "title": "Perplexity AI launches Portable Computer on-device AI agent",
  "url": "https://urgent.news/2026/08/25/perplexity-ai-launches-portable-computer-on-device-ai-agent",
  "topic": "ai",
  "section": "AI",
  "published": "2026-08-25T22:32:18.000Z",
  "source": {
    "name": "SiliconANGLE",
    "slug": "siliconangle",
    "url": "https://siliconangle.com/2026/08/25/perplexity-ai-launches-portable-computer-on-device-ai-agent/"
  },
  "original_language": "en",
  "account": "Perplexity AI Inc. unveiled Portable Computer, an on-device artificial intelligence agent engineered to run on Nvidia GPUs. The announcement came in the wake of rumors that Nvidia might invest in the company, potentially valuing it above $30 billion. Nvidia is also contemplating licensing the technology and recruiting key personnel. Portable Computer is an on-device counterpart of the cloud-based AI agent, Perplexity Computer, which was introduced in February. Both systems are crafted to handle multi-step tasks, for instance, building web applications. When Perplexity Computer encounters a lengthy task, it divides the workload into smaller subtasks and assigns them to separate subagents. Portable Computer transfers this functionality to Nvidia’s DGX Spark device, which boasts a Blackwell-based graphics card, a 20-core CPU, and 128GB of memory. Upon launch, Portable Computer utilizes the open-source Qwen 3.8 27B language model, along with PPLX 27B, an algorithm fine-tuned by Perplexity for the DGX Spark. The device incorporates a multi-token prediction mechanism to expedite prompt processing. Qwen 3.8 27B features a 256,000-token context window, but the company mitigated the issue by implementing a context compaction feature that condenses long prompts below the 100,000-token threshold. The device comes with several pre-programmed skills, such as online research, data analysis, and coding. Perplexity also introduced a functionality that validates prompt responses. If Portable Computer's in-device model struggles to accomplish a task, it can request assistance from a cloud-based neural network. The software can also connect to popular SaaS applications like GitHub. Prior to sending data to external tools, Portable Computer seeks user authorization and does not grant access to local files. Perplexity describes the platform as equipped with additional safeguards, including a sandbox that restricts language models from accessing unnecessary parts of the user’s operating system, and a feature that blocks unauthorized network connections. An upcoming update will extend the tool’s compatibility to Windows machines with Nvidia RTX graphics cards, as well as the Nemotron 3.5 Lightning model, a 30-billion-parameter mixture-of-experts algorithm optimized for resource-constrained devices.",
  "summary": "Perplexity AI Inc. today introduced Portable Computer, an artificial intelligence agent designed to run on desktops equipped with Nvidia Corp. silicon. The launch follows a report that Nvidia is weighing an investment in the startup that could value it at over $30 billion. Furthermore, Nvidia has reportedly floated the idea of licensing Perplexity’s technology and […] The post Perplexity AI…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}