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arXiv · 2608.09819

Macaron-V1: Towards Open Continual Learning with Self-Improvement and Mixture-of-LoRA

Mind Lab·:·Vin Bo·Asher Cai·Jingwei Cao·Song Cao·Vic Cao·Amelia Chen·Andrew Chen·Kaijie Chen·Cleon Cheng·Steven Chiang·Kaixuan Fan·Hera Feng·Huan Feng·Arthur Fu·Aaron Guan·Jun Gao·Pyke Han·Nolan Ho·Ori Hong·Hailee Hou·Piers Hua·Charles Huang·Miles Jiang·Nora Jiang·Yuyi Jiang·Qiuyu Jin·Fancy Kong·Kuss Koo·Echo Lee·Jaron Lee·Andrew Lei·Alexy Li·Dawn Li·Lucian Li·Ray Li·Ricardo Li·Smith Li·Theo Li·Allen Lin·Elliot Lin·Fan Lin·Chen Ling·Kairus Liu·Kieran Liu·Logan Liu·Neo Liu·Xiang Liu·Yuxin Lu·Maeve Luo·Pony Ma·Verity Niu·Cole Qiao·Guian Qiu·Vince Qu·Sentry·Zhuoran Shen·Niko Song·Vincent Wang·Bo Wu·Rio Yang·Schacter Yang·Evelyn Ye·Fiona Ye·Ina Ye·Regis Ye·Josh Ying·Atlas Zeng·Danney Zeng·Salmon Zhan·Anya Zhang·Di Zhang·Mia Zhang·Sueky Zhang·Xuening Zhang·Wei Zhao·Ada Zhou·Adrian Zhou·Yuhua Zhou·Juno Zhu·Murphy Zhuang·Mindverse Team
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Abstract

Macaron-V1 is an open agent-model family for experiential intelligence: learning from experience in real environments and continuing to learn after deployment. It is organized around two system goals. Adaptation is pursued through recursive improvement of versioned model-harness pairs, where experience from one configuration is evaluated under an external contract and used to construct its successor. Collaboration is pursued via the Mixture-of-LoRA (MoL) architecture that freezes a base model, composes specialist LoRA adapters, and selects one LoRA per user turn. The flagship Macaron-V1-Venti (748B) combines a 744B GLM-5.2 base with four LoRAs for chat, agent, coding, and GenUI; the Qwen3.6-35B-based Macaron-V1-Tall (50B) uses the same design for local deployment. This report presents Macaron-V1 as a co-designed system spanning architecture, algorithms, and infrastructure. The MoL architecture supports continual learning through extensible LoRA specialists. The algorithm combines Model-Harness Co-design and recursive self-improvement loop, including the UI4A component-native GenUI harness, a stateful action substrate, versioned Harness Context Protocol contract, and the agentic RL framework MindForge. The supporting infrastructure includes the post-training platform MinT, the long-context RL method LongStraw, and stability techniques for sparse MoE and DSA base models. We evaluate Macaron-V1 on Personal Intelligence, GenUI, and general capability benchmarks against frontier baselines. Our results validate the current system, while compounding gains from continual learning and collective intelligence remain open questions.

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Mind Lab, :, Vin Bo, Asher Cai, Jingwei Cao, Song Cao, Vic Cao, Amelia Chen, Andrew Chen, Kaijie Chen, Cleon Cheng, Steven Chiang, Kaixuan Fan, Hera Feng, Huan Feng, Arthur Fu, Aaron Guan, Jun Gao, Pyke Han, Nolan Ho, Ori Hong, Hailee Hou, Piers Hua, Charles Huang, Miles Jiang, Nora Jiang, Yuyi Jiang, Qiuyu Jin, Fancy Kong, Kuss Koo, Echo Lee, Jaron Lee, Andrew Lei, Alexy Li, Dawn Li, Lucian Li, Ray Li, Ricardo Li, Smith Li, Theo Li, Allen Lin, Elliot Lin, Fan Lin, Chen Ling, Kairus Liu, Kieran Liu, Logan Liu, Neo Liu, Xiang Liu, Yuxin Lu, Maeve Luo, Pony Ma, Verity Niu, Cole Qiao, Guian Qiu, Vince Qu, Sentry, Zhuoran Shen, Niko Song, Vincent Wang, Bo Wu, Rio Yang, Schacter Yang, Evelyn Ye, Fiona Ye, Ina Ye, Regis Ye, Josh Ying, Atlas Zeng, Danney Zeng, Salmon Zhan, Anya Zhang, Di Zhang, Mia Zhang, Sueky Zhang, Xuening Zhang, Wei Zhao, Ada Zhou, Adrian Zhou, Yuhua Zhou, Juno Zhu, Murphy Zhuang, Mindverse Team. 2026-08-24. Macaron-V1: Towards Open Continual Learning with Self-Improvement and Mixture-of-LoRA. https://arxiv.org/abs/2608.09819

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