Antraes-1B (GGUF)

Name: antares-gguf-community
Rating: 2.5 (230 reviews)

Community GGUF quantizations of Cisco's Antares-1B — an open-weight 1-billion parameter language model specialized for vulnerability localization in real-world codebases. Built on IBM Granite 4.0 1B, it autonomously navigates source code repositories through a terminal interface using a two-stage SFT + GRPO pipeline.

These GGUF files enable running Antares-1B locally with llama.cpp, LM Studio, Ollama, Jan, Open WebUI, and other GGUF-compatible inference engines.

Model Details

Property	Value
Model Developer	Cisco Systems, Inc. — Foundation AI (fdtn-ai/antares-1b)
Architecture	Auto-regressive decoder-only transformer (IBM Granite 4.0 1B backbone)
Parameters	1B
Layers	40, hidden dim 2048, 16 attention heads, 4 KV heads (GQA)
Context Window	128K tokens
Vocabulary	100,352 tokens
Activation	SwiGLU, RMSNorm, RoPE positional encoding
License	Apache 2.0
Technical Report	Antares: Foundation Models for Agentic Vulnerability Localization
Training	SFT on cybersecurity reasoning + terminal-navigation data, followed by GRPO with verifiable rewards over multi-turn agent trajectories

Performance

On the Vulnerability Localization Benchmark (VLoc Bench, 500 tasks), Antares-1B achieves a File F1 of 0.209, outperforming models many times its size including GLM-5.2, Gemini 3 Pro, GPT-5 Mini, and Qwen3.5-122B.

Model	Parameters	File F1	Precision	Recall
Antares-1B (GRPO)	1B	0.209	0.262	0.224
GLM-5.2	753B	0.186	0.226	0.186
Gemini 3 Pro	Frontier	0.152	0.190	0.153
Qwen3.5-122B-A10B	125B MoE	0.091	0.124	0.083

Files

File	Format	Size	Description
`antraes-1b-f16.gguf`	GGUF F16	~3.4 GB	Full-precision GGUF quantization
`model.safetensors`	SafeTensors	~3.4 GB	Original PyTorch weights

Usage

llama.cpp

bash

# Build or download llama.cpp, then run:
./llama-cli -m antraes-1b-f16.gguf \
  --temp 0.3 \
  --top-p 1.0 \
  --ctx-size 8192 \
  -p "<|start_of_role|>system<|end_of_role|>You are a security vulnerability localization agent...<|end_of_text|>\n<|start_of_role|>user<|end_of_role|>Vulnerability to locate:\nCWE-78: OS Command Injection<|end_of_text|>\n<|start_of_role|>assistant<|end_of_role|><think>"

LM Studio

Download antraes-1b-f16.gguf
Open LM Studio → drag the .gguf file into the model directory
Select "Antraes-1B" from the model dropdown
This model uses the Granite chat template (auto-detected)

Ollama

bash

# Create a Modelfile:
FROM ./antraes-1b-f16.gguf
TEMPLATE """{{ .System }}

{{ .Prompt }}"""

# Then:
ollama create antraes-1b -f Modelfile
ollama run antraes-1b

Jan

Download antraes-1b-f16.gguf
Open Jan → Settings → Extensions → enable "GGUF Engine"
Drag the .gguf file into Jan's model folder
The model will appear in your model list

Open WebUI

If using Ollama as the backend, pull the model into Ollama first (see above), then it will be available in Open WebUI.

Prompt Format

The model uses a structured tool-calling format with special tokens:

<|start_of_role|>system<|end_of_role|>...<|end_of_text|>
<|start_of_role|>user<|end_of_role|>...<|end_of_text|>
<|start_of_role|>assistant<|end_of_role|><think>...reasoning...</think>
<tool_call>{"name": "terminal", "arguments": {"command": "..."}}</tool_call>
<|end_of_text|>
<|start_of_role|>user<|end_of_role|>
<tool_response>...output...</tool_response>
<|end_of_text|>
<|start_of_role|>assistant<|end_of_role|><think>...

The agent loop terminates when the model calls submit_vulnerable_files or submit_no_vulnerability_found.

Intended Use

Vulnerability Localization: Given a CWE identifier and a repository, identifying which source files contain the reported vulnerability using only a terminal interface
Shift-Left Security: Integrating into CI/CD pipelines for early vulnerability detection
Advisory-Driven Triage: Using CWE identifiers mapped from CVE/GHSA records to guide repository exploration

See the original model card for full details on intended/out-of-scope use, limitations, safety, and evaluation methodology.

Disclaimer

This is an unofficial community GGUF conversion of Cisco's Antares-1B model. These files are not affiliated with or endorsed by Cisco Systems, Inc. The original model is licensed under Apache 2.0 by Cisco Systems, Inc.

Skipti/antares-gguf-community