Text Classification
Transformers
Safetensors
English
Chinese
modernbert
reranker
cross-encoder
agent
decision-making
zero-shot-classification
fast-decider
text-embeddings-inference
Instructions to use mkzero/FastDecider-149M with libraries, inference providers, notebooks, and local apps. Follow these links to get started.
- Libraries
- Transformers
How to use mkzero/FastDecider-149M with Transformers:
# Use a pipeline as a high-level helper from transformers import pipeline pipe = pipeline("text-classification", model="mkzero/FastDecider-149M")# pip install -U transformers accelerate # Load model directly from transformers import AutoTokenizer, AutoModelForSequenceClassification tokenizer = AutoTokenizer.from_pretrained("mkzero/FastDecider-149M") model = AutoModelForSequenceClassification.from_pretrained("mkzero/FastDecider-149M", device_map="auto") - Notebooks
- Google Colab
- Kaggle
docs: sync README with official GitHub repo https://github.com/mkeco/fast-decider-149m
Browse files
README.md
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metrics:
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- accuracy
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model-index:
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- name: FastDecider-149M
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results:
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type: text-classification
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name: Agent Decision Ranking
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dataset:
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name: JevBench v1.2.11
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type: jevbench
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metrics:
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value: 100.0
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name: Easy Tier Accuracy
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value: 44.14
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name: Hard Tier Accuracy
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- type: accuracy
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value: 68.06
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name: Original Tier Accuracy
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---
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# FastDecider-149M (v1.3.0)
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- **JevBench Composite Score**: **78.15 / 100** (Rank #1 Composite)
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- **P50 Latency**: **14.93 ms** on GPU
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- **Cost**: **$0.0012** per 1,000 decisions
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- **6 Core Business Pillars**:
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- Browser DOM Control: 100.0% (50/50)
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- API Tool Dispatch: 98.0% (49/50)
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- E-Commerce Brands: 100.0% (50/50)
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- E-Commerce Specs: 100.0% (50/50)
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- E-Commerce Category: 94.0% (47/50)
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- Legal Contracts: 96.0% (48/50)
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```python
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logits = model(**inputs).logits.squeeze(-1).float()
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probs = F.softmax(logits, dim=-1).cpu().numpy()
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keys = list(options.keys())
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print("Decision:", keys[probs.argmax()])
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```
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metrics:
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- accuracy
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- brier_score
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---
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# FastDecider-149M (v1.3.0)
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<p align="center">
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<strong>Sub-15ms Neural Decision Engine for Autonomous Agents & Industrial Automation</strong>
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</p>
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<p align="center">
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<a href="https://github.com/mkeco/fast-decider-149m/releases/tag/v1.3.0"><img src="https://img.shields.io/badge/Release-v1.3.0-blue.svg" alt="Release"></a>
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<a href="LICENSE"><img src="https://img.shields.io/badge/License-Apache_2.0-blue.svg" alt="License"></a>
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<img src="https://img.shields.io/badge/Parameters-149M_(285MB)-success.svg" alt="Parameters">
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<img src="https://img.shields.io/badge/P50_Latency-14.93ms-brightgreen.svg" alt="Latency">
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<img src="https://img.shields.io/badge/JevBench_Composite-78.15-orange.svg" alt="JevBench Composite">
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<img src="https://img.shields.io/badge/Framework-PyTorch_%7C_ModernBERT-blueviolet.svg" alt="Framework">
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</p>
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<p align="center">
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<a href="README.md">English</a> | <a href="README_zh.md">简体中文</a>
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</p>
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---
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## Overview
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**FastDecider-149M** is a lightweight (149M parameter, ~285MB VRAM) neural cross-encoder purpose-built as a **System-1 (fast-thinking) decision engine** for autonomous AI agents, web/DOM automation, API routing, and high-frequency dispatch.
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While general-purpose LLMs (7B–70B) suffer from 300–2,000ms latency and autoregressive token generation overhead, FastDecider-149M leverages full bidirectional cross-attention across context, instructions, and candidate options. It delivers deterministic, calibrated decision probabilities in **under 15 milliseconds** at **$0.0012 per 1,000 decisions**—over 50x faster and 500x cheaper than commercial generative LLMs.
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---
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## Benchmark & Performance
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### Official JevBench Leaderboard Ranking
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FastDecider-149M achieves a composite score of **78.15** on the standard JevBench benchmark (231 tasks), leading the composite efficiency leaderboard by pairing solid operational accuracy with state-of-the-art speed and cost efficiency.
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<p align="center">
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<img src="docs/images/leaderboard_verified.png" width="880" alt="JevBench Official Benchmark Leaderboard">
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</p>
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### Detailed Scorecard
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| Evaluation Axis | Score / Metric | Industry Tier | Notes |
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| :--- | :--- | :--- | :--- |
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| **Easy Tier Accuracy** | **100.00%** (48/48) | Perfect | Full coverage on intent, extraction, tool pick |
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| **Hard Tier Accuracy** | **44.14%** (49/111) | Competitive | 100% on complex routing & business tradeoffs |
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| **Original Baseline** | **68.06%** (49/72) | Solid | Natural language decision benchmarks |
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| **Intelligence Score** | **65.35 / 100** | High Utility | 149M bidirectional representation capacity |
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| **Speed Score** | **99.22 / 100** | Top 0.1% | P50 = **14.93 ms**, P99 = 17.8 ms |
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| **Cost Score** | **97.62 / 100** | Top 0.1% | **$0.0012** / 1k decisions |
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| **Calibration Score** | **58.92 / 100** | Calibrated | Brier score = 0.6751, monotonic probabilities |
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| ★ **JevBench Composite** | **78.15 / 100** | **Rank #1** | Geometric mean across Intel, Calib, Speed, Cost |
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### Industrial Domain Verification (6 Pillars)
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FastDecider-149M was evaluated across six real-world industrial automation tasks:
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```text
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======================================================================
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INDUSTRIAL DOMAIN | ACCURACY | TEST SET
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======================================================================
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Browser DOM Control (XPath / Elements) | 100.0% | 50/50
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API Dispatch / Function Routing | 98.0% | 49/50
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E-Commerce Brand Extraction | 100.0% | 50/50
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E-Commerce Specs & Attributes | 100.0% | 50/50
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E-Commerce Category Classification | 94.0% | 47/50
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Legal Contract Clause Matching | 96.0% | 48/50
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======================================================================
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```
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---
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## Quickstart
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### Installation
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```bash
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git clone https://github.com/mkeco/fast-decider-149m.git
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cd fast_decider_149m
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pip install -e .
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```
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### Python API
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```python
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from fast_decider import FastDecider
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# Initialize the 149M decision engine (BF16, ~285MB VRAM)
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decider = FastDecider("mkzero/FastDecider-149M")
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# Example: Real-time Web Browser DOM Action Selection
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result = decider.decide(
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context="User wants to complete purchase. Cart contains 2 items. Page displays modal with coupon prompt.",
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instruction="Select the primary checkout button to proceed.",
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options={
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"checkout_btn": "button.btn-primary-checkout",
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"coupon_apply": "button.btn-apply-coupon",
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"continue_shop": "a.link-continue-shopping",
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"clear_cart": "button.btn-danger-clear"
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}
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)
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print(f"Selected Action : {result.best_option}")
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print(f"Confidence : {result.confidence:.2%}")
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print(f"Inference Time : {result.latency_ms:.2f} ms")
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```
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### High-Throughput HTTP Microservice (FastAPI)
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```bash
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# Launch the ASGI microservice on port 8000
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python -m uvicorn fast_decider.server:app --host 0.0.0.0 --port 8000
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```
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---
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## Reproducibility & Benchmark Suite
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All benchmark figures reported above are fully reproducible with the provided scripts:
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```bash
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# 1. Run official JevBench CLI evaluation (231 tasks)
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bash benchmarks/run_jevbench_official.sh
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# 2. Run the 6 industrial domain verification
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python benchmarks/verify_6_pillars.py
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# 3. Benchmark latency and throughput
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python benchmarks/benchmark_latency.py
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# 4. Run test suite
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pytest tests/
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```
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---
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## Support the Project / Buy Me a Coffee ☕
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If FastDecider-149M is helpful to your work, agent framework, or research, feel free to sponsor or buy the author a cup of coffee!
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<p align="center">
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<img src="docs/images/buy_me_a_coffee.jpg" width="260" alt="Buy Me a Coffee">
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<br>
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<em>Thank you for supporting open-source software!</em>
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</p>
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---
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## License
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This project is licensed under the Apache 2.0 License - see the [LICENSE](LICENSE) file for details.
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