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# Portable agent memory from Tencent: the Hy4 preview squeezes 1.5 terabytes into 214 gigabytes
- URL: https://globalfeed.ai/en/portable-agent-memory-from-tencent-the-hy4-preview-squeezes-1-5-terabytes-into-214-gigabytes/
- Published: 2026-09-01T20:33:07.000Z
- Updated: 2026-09-01T20:33:07.000Z
- Description: In the Hunyuan Hy4 preview, agent memory travels across Claude Code, DeepSeek Harness and WorkBuddy; a 1.5 TB memory shrank to 214 GB with almost no benchmark loss, running on a single 4090 laptop.
- Author: GlobalFeed Editor
- Tags: tencent, hunyuan, agents, open source, x-TencentAI_News, x-TencentHunyuan, dil-en, elle, video, x-gitti

Tencent's AI team announced the Hunyuan Hy4 preview with an unusual emphasis: memory, over model. In the team's words, most teams ship an open model and call it done; what Hy4 brings is agent memory that **travels across Claude Code, DeepSeek Harness and WorkBuddy**. Instead of being locked into a single vendor's database, the memory moves with the agent.

The numbers land too: 1.5 terabytes of agent memory compressed to **214 gigabytes** with almost no change on benchmarks, and the package runs on a single 4090 laptop or a box of four A4000s. On code, the Hy4 preview climbed to fifth on Code Arena's WebDev ranking; Hy3 sat at 31st two months ago. Virtual environments get attention as well: an agent can be paused on one machine and woken on another with its state intact. All of it open source.

The context is familiar: we covered Tencent's ContextPilot yesterday, which teaches context management to the model; Hy4 is the memory front of the same war. It also makes the lock-in debate of the agent era concrete: an agent that carries its memory in its pocket can move to any harness it likes, and what keeps the customer has to be the service itself, no longer the database.