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Stanford-CongLab/
LabHorizon-Model

Name: LabHorizon-Model
Rating: 2.5 (12 reviews)

peft

safetensors

laboratory

protocol-aligned-action-prediction

lora

qwen

long-horizon-planning

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LabHorizon Model

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arXiv

Code

Pushing the Limits of Laboratory 3D Perception and Long-Horizon Planning via Protocol-Aligned Action Prediction

🔎 Overview

This repository releases the LabHorizon Qwen3.6 LoRA adapter trained from Qwen/Qwen3.6-35B-A3B on the 6,000-sample LabHorizon training split. The model is optimized for Protocol-Aligned Action Prediction:

Level 1: connect multi-view laboratory assets and historical actions to the gold next action.
Level 2: produce a structured long-horizon experimental action sequence from context, constraints, available inputs, and an action pool.

This model repository is the model-side companion to the LabHorizon code and dataset releases. The GitHub repository is the full project entry point; the two dataset cards describe Level 1 and Level 2 data; this card focuses on the trained Qwen3.6 adapter, its files, training signal, evaluation result, and loading instructions.

📰 News

2026-06-03: Released the LabHorizon LoRA adapter weights and reproducibility files on Hugging Face.
2026-06-03: Updated the public LabHorizon leaderboards with Claude Opus 4.8 and MiniMax M3 direct-prompting evaluations.

✨ Highlights

🧪
Qwen3.6 Adapter
_{LoRA weights for Qwen3.6-35B-A3B}

🔬
Level 1 Signal
_{Multi-view asset next-action prediction}

🧭
Level 2 Signal
_{Long-horizon protocol-aligned planning}

🧠
Train + Agent
_{Supports trained and trained+agents settings}

📦 Datasets

The adapter is trained on the same public LabHorizon train split described by the two dataset cards. The evaluation results below use the same v20260510-repaired test split as the GitHub README and the dataset READMEs.

Level	Hugging Face Dataset	Input	Target	Metric
Level 1	LabHorizon-3D-Asset-Perception	Three asset views, historical actions, candidate next actions	Gold next action	Next-action accuracy
Level 2	LabHorizon Protocol-Aligned Planning	Context, goal, constraints, available inputs, action pool	Gold experimental action sequence	L2 Action Sequence Similarity, L2 Parameter Accuracy

📦 Model

🧾 Model Card

Field	Value
Base model	`Qwen/Qwen3.6-35B-A3B`
Adapter type	LoRA / PEFT adapter
Training data	6,000 LabHorizon train samples
Level 1 training split	3,000 multimodal laboratory 3D asset samples
Level 2 training split	3,000 text-only protocol-aligned planning samples
Main task	Protocol-aligned laboratory action prediction
Main metrics	Level 1 Next Action Accuracy; L2 Action Sequence Similarity and L2 Parameter Accuracy
Intended loading mode	Load this adapter with the matching Qwen3.6-35B-A3B base model

The released weights are an adapter, not the base model. Users must load them with the corresponding Qwen3.6-35B-A3B base model.

📁 Files

File	Meaning
`adapter_model.safetensors`	LoRA adapter weights.
`adapter_config.json`	PEFT adapter configuration.
`tokenizer.json`, `tokenizer_config.json`, `chat_template.jinja`	Tokenizer and chat template files used for training/evaluation.
`processor_config.json`	Processor configuration.
`train_results.json`, `eval_results.json`, `all_results.json`	Training and evaluation summaries from the LoRA run.
`trainer_state.json`, `trainer_log.jsonl`, `training_args.bin`	Training state and arguments for reproducibility.
`training_loss.png`, `training_eval_loss.png`	Loss curves.

📏 Evaluation

LabHorizon uses the same evaluation contracts across direct-prompting models, the trained adapter, and the trained+agents setting.

Level	Output format	Metric
Level 1	Reasoning followed by a final next action	Next Action Accuracy
Level 2	Structured action sequence parsed by Python AST	L2 Action Sequence Similarity, L2 Parameter Accuracy, L2 Final Score

For Level 1, the evaluator maps the final next action back to the candidate list. For Level 2, the evaluator parses action names, keyword parameters, assigned intermediate variables, and dependency references with Python AST. This model card reports the same metrics as the GitHub and dataset READMEs.

🏆 Leaderboard

The tables below report direct-prompting baselines on the same test split used for the trained model comparison. The full code and evaluation scripts are maintained in the LabHorizon GitHub repository.

🔬 Level 1: 3D Asset Perception

Rank	Model	Next Action Accuracy
🥇	Grok 4.3	0.555
🥈	Kimi K2.6	0.550
🥉	GPT-5.5	0.535
4	GPT-5.4	0.520
5	Claude Opus 4.8	0.515
6	MiniMax M3	0.510
7	Qwen3.6 Plus	0.505
8	Claude Opus 4.7	0.500
9	Qwen3.5 35B-A3B	0.495
10	MiMo V2.5	0.495
11	Qwen3.5 9B	0.485
12	Gemini 3.5 Flash	0.485
13	Qwen3.6 35B-A3B	0.475
14	Gemini 3.1 Pro	0.465

🧪 Level 2: Protocol-Aligned Planning

Rank	Model	L2 Final Score	L2 Action Sequence Similarity	L2 Parameter Accuracy
🥇	Gemini 3.1 Pro	0.3263	0.3195	0.3331
🥈	Grok 4.3	0.3244	0.3339	0.3148
🥉	Kimi K2.6	0.3150	0.2845	0.3456
4	Gemini 3.5 Flash	0.3039	0.2686	0.3391
5	Qwen3.7 Max	0.3003	0.2905	0.3102
6	MiniMax M3	0.2954	0.2812	0.3095
7	Claude Opus 4.8	0.2911	0.2756	0.3066
8	Claude Opus 4.7	0.2737	0.2619	0.2856
9	GPT-5.4	0.2715	0.2191	0.3239
10	Qwen3.6 35B-A3B	0.2534	0.2585	0.2483
11	Qwen3.6 Plus	0.2526	0.2264	0.2787
12	MiMo V2.5	0.2491	0.2269	0.2713
13	GLM 5.1	0.2413	0.2307	0.2519
14	Qwen3.5 35B-A3B	0.2391	0.2385	0.2398
15	GPT-5.5	0.2276	0.2092	0.2459
16	DeepSeek V4 Pro	0.2135	0.1927	0.2342
17	Qwen3.5 9B	0.1315	0.1359	0.1271

🧬 Training Data and Setup

The adapter is trained on the public LabHorizon training split:

Component	Size	Role
Level 1 train	3,000	Multi-view laboratory asset perception and next-action prediction
Level 2 train	3,000	Protocol-aligned long-horizon experimental action-sequence planning
Total train	6,000	Unified supervised fine-tuning data for laboratory action prediction

The training data are converted into Qwen chat format and then into the LLaMA-Factory ShareGPT-VL-style format. Level 1 keeps the three asset images and candidate next actions; Level 2 uses text-only context, constraints, available inputs, action pool, and gold experimental action sequence.

Main training settings:

Setting	Value
LoRA rank / alpha / dropout	`32 / 64 / 0.10`
Learning rate	`1.0e-4`
Scheduler	Cosine
Warmup ratio	`0.10`
Cutoff length	`4096`
Image max pixels	`501760`
Epochs / max steps	`10 / 2500`
Precision	`bf16`
Gradient checkpointing	Enabled
Runtime	`10014.77 s`
Final train loss	`0.2691`
Final eval loss	`0.4426`

🧠 Training Result

The table compares direct-prompting SOTA/baseline systems, the base Qwen model, and the trained+agents system evaluated on the same LabHorizon test splits.

System	Level 1 Next Action Accuracy	L2 Action Sequence Similarity	L2 Parameter Accuracy	L2 Final Score
Grok 4.3	0.555	0.3339	0.3148	0.3244
Gemini 3.1 Pro	0.465	0.3195	0.3331	0.3263
GPT-5.5	0.535	0.2092	0.2459	0.2276
Kimi K2.6	0.550	0.2845	0.3456	0.3150
Qwen3.6-35B-A3B	0.475	0.2585	0.2483	0.2534
Qwen3.6-35B-A3B(trained+agents)	0.665	0.4485	0.4580	0.4532

Agent setting: Qwen3.6-35B-A3B(trained) is used as Actor, and Gemini 3.1 Pro is used as Simulator/Selector. The Simulator/Selector choice is the current setting and has not been exhaustively ablated.

The trained adapter improves both levels over the direct Qwen3.6-35B-A3B baseline. Level 1 improves from 0.475 to 0.635, indicating better laboratory asset-to-action alignment. L2 Final Score improves from 0.2534 to 0.4100, indicating better action ordering, parameter retention, and dependency tracking. The trained+agents setting further improves consistency by selecting candidates with stronger symbolic protocol-state validity.

🤖 Actor-Simulator-Selector Agent

The trained+agents result uses this adapter as the Actor and combines it with a separate Simulator/Selector model. The agent is not a physical simulator and does not execute wet-lab actions. It samples candidate next actions or action sequences, checks symbolic protocol-state consistency, and selects the most consistent candidate.

The trained Actor reads the same task inputs used by the public datasets: multi-view asset images, historical actions, and candidate next actions for Level 1, or wet experiment context, constraints, available inputs, and an action pool for Level 2. The Simulator builds current and target symbolic protocol states and predicts candidate reagent/instrument state transitions. The Selector compares the candidate-state pairs and returns the selected action prediction, which is evaluated with Level 1 next-action accuracy or Level 2 AST-based action-sequence and parameter metrics.

Agent setting: Qwen3.6-35B-A3B(trained) is used as Actor, and Gemini 3.1 Pro is used as Simulator/Selector. This Simulator/Selector choice is the current setting and has not been exhaustively ablated.

🚀 Quick Start

Load Adapter

python

from transformers import AutoModelForCausalLM, AutoProcessor
from peft import PeftModel

base_id = "Qwen/Qwen3.6-35B-A3B"
adapter_id = "Stanford-CongLab/LabHorizon-Model"

processor = AutoProcessor.from_pretrained(adapter_id, trust_remote_code=True)
base = AutoModelForCausalLM.from_pretrained(
    base_id,
    device_map="auto",
    torch_dtype="auto",
    trust_remote_code=True,
)
model = PeftModel.from_pretrained(base, adapter_id)

Evaluate with LabHorizon

Use the public code repository for evaluation and agent workflows:

bash

git clone https://github.com/Stanford-CongLab/LabHorizon
cd LabHorizon

Configure an OpenAI-compatible endpoint in .env, then run the Level 1 / Level 2 evaluators or the Actor-Simulator-Selector agent following the GitHub README.

For evaluation, use the public LabHorizon code repository and point the evaluator to a compatible model endpoint or local serving stack. The model card itself only releases the adapter and training artifacts.

⚠️ Intended Use

This adapter is intended for academic research on laboratory action prediction, experimental planning, and AI scientist systems. It is not an autonomous wet-lab controller. Outputs should be treated as model predictions and should not be used for safety-critical experimental decisions without expert review.

Recommended use cases:

Evaluate protocol-aligned next-action prediction and long-horizon planning.
Study how training data improves laboratory action prediction.
Use the adapter as the Actor in the Actor-Simulator-Selector framework.
Analyze remaining failures in action order, parameter copying, dependency tracking, and protocol-stage consistency.

Not intended for:

Autonomous wet-lab execution.
Clinical, safety-critical, or regulated decision-making.
Generating executable biological protocols without expert validation.

📜 Citation

Coming soon...