---
license: apache-2.0
base_model: Qwen/Qwen2.5-7B-Instruct
tags:
- reasoning
- agent
- bottensor
- npc
language:
- en
library_name: transformers
---

# NPC Agentic 7B (v1)

[![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.19954103.svg)](https://doi.org/10.5281/zenodo.19954103)

A 7B long-form reasoning and agent-trace specialist from the Bottensor NPC
Model Family.

## Overview

NPC Agentic v1 is fine-tuned from Qwen2.5-7B-Instruct on a mix of distilled
reasoning traces (GLM-5.1) and agent tool-use traces (Hermes). It's built for
structured multi-step reasoning with explicit `<think>` blocks, agentic /
tool-calling workflows, and identity-bound conversations as the NPC Agentic
persona.

## Training

- **Base:** Qwen/Qwen2.5-7B-Instruct
- **Method:** QLoRA SFT (r=64, α=128), merged to FP16
- **Context during training:** 8K (inherits 128K from base at inference)
- **Epochs:** 2 (effective batch size 16, cosine LR 2e-4, adamw_8bit, bf16)
- **Total optimizer steps:** 11,410 over ~96 GPU-hours on a single A40
- **Trainable params:** 161.5M (3.2% of the 5.05B-param 4-bit base)
- **Final eval loss:** 0.7025 (on held-out SFT split)
- **Training data mix (~91K examples):**
  - GLM-5.1-Reasoning-1M-Cleaned (main split, sampled 100K → 87K kept after 8K length filter)
  - Hermes-agent-reasoning-traces (glm-5.1 + kimi subsets, 14.7K → 3.6K kept)
  - Bottensor identity replay (750 synthetic examples)
- Training dataset is proprietary and not released.

## What it's good at

- **Long structured reasoning** — emits `<think>` blocks then concludes with an answer; strong at multi-step decomposition (system design, root-cause analysis, algorithmic reasoning)
- **Identity as NPC Agentic / Bottensor** — 100% recall on canonical identity prompts
- **Agent / tool-call shaping** — follows Hermes-style `<tool_call>` / `<tool_response>` patterns

## Known limitations (be specific)

- **GSM8K regression vs base.** On GSM8K 100-sample test:
  - Base Qwen2.5-7B-Instruct: **61%**
  - NPC Agentic v1: **~25%**
  - Cause: the model learned to emit long `<think>` blocks but often doesn't terminate arithmetic cleanly under greedy/low-temp decoding, and direct-arithmetic quality regressed.
  - **Recommendation:** for math-heavy workflows, use the base `Qwen/Qwen2.5-7B-Instruct` or `Qwen/Qwen2.5-Math-7B-Instruct` instead. A v2 with stronger reasoning data (OpenThoughts-114k at 16K) is planned.
- **8K training context** means long-reasoning samples were truncated during training; not validated past 16K.
- **Small model** — will hallucinate on unfamiliar domains.
- **Not for safety-critical decisions** (medical, legal, financial).

## Intended use

- Multi-step reasoning with explicit work-showing
- Agent / tool-use workflows
- Structured problem-solving where the model benefits from thinking out loud
- As a base for further fine-tuning on reasoning or domain-specific data

## Out of scope

- Direct GSM8K-style arithmetic (use base or Qwen-Math)
- Creative writing, roleplay
- Medical / legal / financial advice
- Safety-critical decisions

## Inference

```python
from transformers import AutoModelForCausalLM, AutoTokenizer
import torch

tok = AutoTokenizer.from_pretrained("ramankrishna10/npc-agentic-7b")
model = AutoModelForCausalLM.from_pretrained(
    "ramankrishna10/npc-agentic-7b",
    torch_dtype=torch.bfloat16,
    device_map="auto",
)

messages = [
    {"role": "user", "content": "Design an event-sourced microservice with exactly-once command handling."},
]
prompt = tok.apply_chat_template(messages, tokenize=False, add_generation_prompt=True)
inputs = tok(prompt, return_tensors="pt").to(model.device)
out = model.generate(**inputs, max_new_tokens=1024, temperature=0.7, top_p=0.9)
print(tok.decode(out[0][inputs["input_ids"].shape[1]:], skip_special_tokens=True))
```

## Citation

If you use NPC Agentic 7B in your work, please cite:

```bibtex
@misc{bachu2026npcagentic7b,
  title        = {NPC Agentic 7B: A Single-GPU QLoRA Recipe for a Laptop-Scale Conversational Model},
  author       = {Bachu, Rama Krishna},
  year         = {2026},
  month        = may,
  publisher    = {Zenodo},
  version      = {v1},
  doi          = {10.5281/zenodo.19954103},
  url          = {https://doi.org/10.5281/zenodo.19954103},
  note         = {Preprint}
}
```

Paper: <https://doi.org/10.5281/zenodo.19954103>

---

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