verilog-specialist-32b-adapters

Verilog Specialist 32B Adapters

A domain-specialized PEFT/LoRA adapter for Verilog and RTL generation, built on top of unsloth/qwen2.5-coder-32b-instruct-bnb-4bit.

This model is intended to improve large language model performance on hardware-description-language tasks such as:

• synthesizable Verilog generation
• RTL completion
• FSM generation
• Verilog bug fixing and rewriting
• HDL-oriented assistance inside multi-agent silicon design workflows

It is designed as a specialist model layer for AgentIC, a full-stack autonomous silicon engineering framework.

Model Details

Model Description

vxkyyy/verilog-specialist-32b-adapters is a lightweight adapter checkpoint trained to specialize a 32B coder model for Verilog / RTL-oriented text generation.
This repository contains adapter weights only and is not a standalone base model.

The adapter is best used when a workflow needs stronger HDL generation quality than a general-purpose coding model can provide, especially for:

• leaf RTL module generation

• synthesizable code rewrites

• hardware-style code completion

• iterative repair in verification/debug loops

• Developed by: vxkyyy

• Shared by: vxkyyy

• Project: AgentIC / Buildstack Lab

• Model type: PEFT LoRA adapter for causal language modeling / text generation

• Language(s): English, Verilog, HDL-style technical text

• License: -

• Finetuned from model: unsloth/qwen2.5-coder-32b-instruct-bnb-4bit

Model Sources

• Repository: https://huggingface.co/vxkyyy/verilog-specialist-32b-adapters
• Base model: https://huggingface.co/unsloth/qwen2.5-coder-32b-instruct-bnb-4bit
• Project context: AgentIC (private / Buildstack Lab project context)

Uses

Direct Use

This model is intended for:

• Verilog RTL generation
• synthesizable HDL drafting
• FSM-oriented code generation
• hardware module completion
• rewriting buggy or low-quality RTL into cleaner synthesizable code

Example prompts:

• "Write synthesizable Verilog for a UART transmitter with active-low reset."
• "Generate a 2-process FSM for an AXI-lite write controller."
• "Rewrite this Verilog so it is synthesizable and avoids latches."

Downstream Use

This adapter is especially useful when plugged into larger systems such as:

• AgentIC
• RTL generation pipelines
• verification-aware HDL assistants
• code repair loops for hardware design
• educational and research workflows in digital design

Within AgentIC, this model is best used for:

• RTL leaf-node generation
• Verilog-specialized rewrite loops
• code-generation stages inside react_agent.py or designer.py

Out-of-Scope Use

This model is not intended to replace:

• simulation
• formal verification
• timing analysis
• CDC signoff
• synthesis signoff
• physical design tools
• tapeout decision-making without external validation

It should not be treated as a guaranteed-correct chip design engine.

Bias, Risks, and Limitations

This model inherits limitations from the underlying base model and from adapter-based specialization.

Known limitations include:

• It may generate syntactically valid but logically incomplete RTL.
• It does not guarantee synthesizability or protocol correctness.
• It may require multiple repair iterations for complex modules.
• It may perform better on smaller leaf modules than on full-system hardware design.
• It should not be used as the sole basis for fabrication decisions.

Because it is adapter-based, output quality is also bounded by the capabilities of the base model.

Recommendations

Users should:

• validate outputs with Verilator / Icarus Verilog
• run Yosys synthesis checks
• use formal or simulation-based verification where possible
• prefer constrained prompts that specify reset style, clocking behavior, and synthesis requirements
• use this model as part of a larger verification-aware workflow such as AgentIC

How to Get Started with the Model

This repository contains adapter weights only.
Load it on top of the declared base model.

Transformers + PEFT

from transformers import AutoTokenizer, AutoModelForCausalLM
from peft import PeftModel

base_model_id = "unsloth/qwen2.5-coder-32b-instruct-bnb-4bit"
adapter_id = "vxkyyy/verilog-specialist-32b-adapters"

tokenizer = AutoTokenizer.from_pretrained(base_model_id)
base_model = AutoModelForCausalLM.from_pretrained(
    base_model_id,
    device_map="auto",
    torch_dtype="auto"
)

model = PeftModel.from_pretrained(base_model, adapter_id)

prompt = """
Write synthesizable Verilog for a synchronous FIFO with:
- width = 8
- depth = 16
- active-low reset
- full and empty flags
- no non-synthesizable constructs
"""

inputs = tokenizer(prompt, return_tensors="pt").to(model.device)
outputs = model.generate(**inputs, max_new_tokens=300)
print(tokenizer.decode(outputs, skip_special_tokens=True))