Tencent open-sources Hy-Memory-30B-A3B memory writer
Confirmed
The takeaway
Tencent Hunyuan released Hy-Memory-30B-A3B (Apache 2.0, ~3B active parameters) on Hugging Face on Oct 15, 2026, with the Hy-Memory framework (chat, working and code memory) and a tech report (arXiv 2610.22196).
Status
- Claim
Confirmed
- Our reporting
- High confidence
- Importance
- 2 of 5
- Last verified
- 17 October 2026
Your AI and this story
- GPT-6 Astra168 days after its cutoff
- Claude Opus 5.5107 days after its cutoff
- Gemini 4 Argon198 days after its cutoff
- Grok 4.7137 days after its cutoff
None of these four assistants can know about it. The closest, Claude Opus 5.5, stops 107 days before it.
Key facts
- Model: Hy-Memory-30B-A3B, MoE with ~3B active parameters, English and Chinese, Apache 2.0 (Hugging Face card)
- Role: executes the write path of external memory frameworks; drop-in replacement for the LLM inside Mem0, MemOS and Hy-Memory (chat, working and code memory); EverMemOS held out of training
- Training: two stages inside the deployed harnesses: on-policy distillation from a teacher on student-written state chains, then RL with chunk-level credit over memory banks
- Tencent’s results (fixed 20% subsample; six metrics incl. LoCoMo, LongMemEval, PersonaMem-v2 and a code-memory benchmark): average 55.49 vs Claude Opus 5 54.62, DeepSeek V4.1 Flash 53.64, Hy3 51.63, Qwen3.6-35B-A3B 50.37; only the memory writer is swapped, answer model and judge held fixed
- Pandaily (Oct 17) reported it as Hy Memory 2.0 with new working and code memory and a MemHub, Apache 2.0
What happened
Agent memory systems usually call a large general model to decide what to store. Tencent trained a small dedicated model for that job and released it with its own framework. The comparison numbers are Tencent’s and were not independently checked.
Sources
4 sources from 4 sites. Numbers match the chips in the text.
4 sources: 3 primary, 1 press
Primary
- Hugging Face: tencent/Hy-Memory-30B-A3Bhuggingface.co, code
- GitHub: Tencent-Hunyuan/Hy-Memorygithub.com, code
- Tech report: arXiv 2610.22196arxiv.org, paper
Press
Changes
- Filed (Hugging Face card read)