Highlights
- A 748B-parameter flagship model, consisting of a 744B GLM-5.2 base model and four 1B-parameter LoRA specialists across Chat, Agent, Coding, and GenUI.
- The first model to be post-trained on GLM-5.2, moving Macaron's personal-intelligence stack beyond Macaron-V1-Preview.
- Model-and-harness co-design: post-trained with MinT and MindForge for production-aligned routing, tool use, UI4A Generative UI, and agent workflows.
- Long-context post-training infrastructure: the V1 training stack incorporates LongStraw for multi-million-token RL execution, with Venti supporting a 1M context length.
- Broad evaluation across personal intelligence, agentic tasks, coding, terminal use, and Generative UI; Macaron V1 leads the listed baselines on ChatBench, LivingBench, PinchBench, TerminalBench 2.1, and UI4ABench.
Model Overview
Table with columns: Field, Value| Field | Value |
|---|
| Model name | Macaron-V1-Venti |
| Organization | MindLab Research |
| Release family | Macaron-V1 |
| Base model | GLM-5.2 |
| Architecture | GLM-5.2 base + Mixture of LoRA (MoL) specialists |
| Parameter footprint | 748B total: 744B base + 4 x 1B LoRA specialist parameters |
| Specialists | L0 Chat, L1 Agent, L2 Coding, L3 GenUI (1B each) |
| Post-training system | MinT + MindForge |
| Primary domains | Personal intelligence, tool use, coding, Generative UI |
| Context length | 1M |
| Precision / serving format | BF16 base checkpoint with routed LoRA serving |
| License | MIT |
Mixture of LoRA (MoL) Architecture
Table with columns: Adapter, Role, Description| Adapter | Role | Description |
|---|
l0 | Chat | Conversational and instruction-following backbone; entry point for routing. |
l1 | Agent | Personal-life agent tasks, heavy tool use, long-horizon planning, and dynamic workflows. |
l2 | Coding | Code understanding, SWE tasks, terminal use, and repository workflows. |
l3 | GenUI | UI4A rendering and UI-driven action. |
At runtime, L0 routes each new user request to the most suitable specialist. Ongoing reasoning and tool interactions remain within the selected LoRA, while completed work can be shared across specialists through concise summaries.
Evaluation

Table with columns: Benchmark, Macaron V1, GLM 5.2, GPT 5.5, Claude Opus 4.8, Gemini 3.1 Pro, Qwen 3.7 Max, Minimax M3| Benchmark | Macaron V1 | GLM 5.2 | GPT 5.5 | Claude Opus 4.8 | Gemini 3.1 Pro | Qwen 3.7 Max | Minimax M3 |
|---|
| ChatBench | 58.3 | 54.5 | 55.5 | 52.8 | 52.0 | 52.5 | 49.1 |
| LivingBench | 64.0 | 60.5 | 61.9 |
Higher is better for all scores shown in the chart and table.
Evaluation Protocols
The headline table reports aggregate scores from the Macaron-V1 evaluation suite covering personal intelligence, agentic tool use, coding, terminal workflows, and Generative UI.
Hugging Face ingestible result files are included under .eval_results for SWE-bench Verified. The full model-card table is also mirrored in evaluation/benchmark_summary.yaml for reproducibility and downstream parsing.
The full benchmark methodology will be released with the technical report.
Usage
Hosted API
The hosted API is available at https://mintcn.macaron.xin/. Use the site for current model names, authentication, pricing, and rate-limit details.
For OpenAI-compatible deployments, requests follow the standard chat-completions shape:
curl https://mintcn.macaron.xin/v1/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer <api-key>" \
-d '{
"model": "Macaron-V1-Venti",
"messages": [
{"role": "user", "content": "Create a compact dashboard UI for tracking weekly fitness goals."}
],
"temperature": 0.2,
"max_tokens": 2048
}'
Mixture of LoRA (MoL) Serving
For self-hosted routed serving, use the Mixture of LoRA (MoL) serving harness. The harness keeps the endpoint OpenAI-compatible while adding an L0 router, server-side LoRA metadata, and same-request switching into the selected specialist.
See the MoL serving repository for more details.
Macaron Artifacts
Macaron Artifacts is the companion local WebUI and plugin bundle for viewing Macaron sessions and GenUI output. It supports Claude Code, Codex, and Kimi Code, and can run against Macaron or another Anthropic-compatible endpoint.
Install it as a plugin in the agent runtime you use:
# Claude Code
/plugin marketplace add https://github.com/MindLab-Research/macaron-artifacts
/plugin install macaron@macaron
# Codex
codex plugin marketplace add https://github.com/MindLab-Research/macaron-artifacts
codex plugin add macaron@macaron
# Kimi Code
/plugins install https://github.com/MindLab-Research/macaron-artifacts
/reload
The WebUI can be configured from its settings page, or through environment variables:
MACARON_API_BASE=https://mintcn.macaron.xin/v1
MACARON_API_KEY=<api-key>
MACARON_MODEL=Macaron-V1-Venti
The plugin includes the genui-builder skill so supported agents can produce GenUI TSX and preview the rendered artifact in the browser. See the Artifacts repository for full install, update, and provider configuration details.
License
This repository is released under the MIT License. Users should also respect any requirements inherited from the GLM-5.2 base model and from dependencies used by the serving harness.
Citation
@misc{mindlab2026macaronv1,
author = {{Mind Lab}},
title = {Introducing Macaron-V1},
year = {2026},
howpublished = {Mind Lab: A Lab for Experiential Intelligence},
note = {https://macaron.im/mindlab/research/introducing-macaron-v1}
}