Model reference · open weights

G9-39

Available as managed deployment LLMs ai9stars Text gen · MoE 1 variants 2k dl/mo

G9-39 is an open-weight language model from ai9stars. AxForge deploys and operates it for you on dedicated EU-owned hardware — with the licence handled where one is required.

Available as managed deployment — configured and operated for you on dedicated EU hardware, quoted per deployment.

What it is

Released byai9stars
TypeLanguage models
TaskText gen · MoE
Parameters (lead)39.0B
Context128k tokens
Runs withtransformers
Released2026-07-21
Popularity2k downloads / month
LicenceOpen weights

About

What G9-39 is

Introduction

G9v3-39A5B is a Mixture-of-Experts (MoE) causal language model from the AI9Stars team, with 39B total parameters and 5B activated per token. The sparse design keeps inference cost close to a small dense model while retaining the capacity of a much larger one, making it a practical choice for local and self-hosted deployment.

It targets everyday assistant use, coding, tool-use workflows, and reasoning tasks, and supports both Think / No Think modes through the same checkpoint.

Read the full model card

Model Information

  • Type: Causal Language Model (Mixture-of-Experts)
  • Total Parameters: ~39B
  • Activated Parameters: ~5B per token
  • Context Length: 131,072

Quickstart

vLLM

pip install "vllm>=0.21"
vllm serve ai9stars/G9v3-39A5B --port 8000
curl http://localhost:8000/v1/chat/completions \
  -H "Content-Type: application/json" \
  -d '{
    "model": "ai9stars/G9v3-39A5B",
    "messages": [{"role": "user", "content": "Who are you?"}],
    "max_tokens": 128,
    "temperature": 0.7
  }'

SGLang

pip install "sglang[srt]>=0.5.12"
python -m sglang.launch_server --model-path ai9stars/G9v3-39A5B --port 30000
curl http://localhost:30000/v1/chat/completions \
  -H "Content-Type: application/json" \
  -d '{
    "model": "ai9stars/G9v3-39A5B",
    "messages": [{"role": "user", "content": "Who are you?"}],
    "max_tokens": 128,
    "temperature": 0.7
  }'

Transformers

pip install -U "transformers>=5.6" accelerate torch
from transformers import AutoModelForCausalLM, AutoTokenizer

model_id = "ai9stars/G9v3-39A5B"
tokenizer = AutoTokenizer.from_pretrained(model_id)
model = AutoModelForCausalLM.from_pretrained(
    model_id,
    torch_dtype="auto",
    device_map="auto",
)

messages = [{"role": "user", "content": "Who are you?"}]
inputs = tokenizer.apply_chat_template(
    messages,
    tokenize=True,
    add_generation_prompt=True,
    enable_thinking=False,
    return_dict=True,
    return_tensors="pt",
).to(model.device)

outputs = model.generate(**inputs, max_new_tokens=128)
print(tokenizer.decode(outputs[0][inputs["input_ids"].shape[-1]:], skip_special_tokens=True))

Recommended sampling parameters:

ModeRecommended paramsEnable
Thinktemperature=1.0, top_p=0.95enable_thinking=True
No Thinktemperature=0.7, top_p=0.95enable_thinking=False

Limitations and Responsible Use

G9v3-39A5B is a language model that generates content based on learned statistical patterns from training data. It may produce inaccurate, biased, or unsafe outputs, and generated content should be reviewed and verified before use in high-stakes settings. As a preview release, its behavior may change between versions. Users are responsible for evaluating outputs, applying appropriate safeguards, and complying with applicable laws, regulations, and platform policies.

License

This repository and the G9v3 model weights are released under the Apache-2.0 License.

From the published model card. Full card on the HuggingFace links in the sidebar.

Using it via the API

Call it like any OpenAI endpoint

Once AxForge deploys g9-39 for you, it answers on the OpenAI-compatible API — the same base URL and keys as every other model. (g9-39 below is illustrative; you get the exact model name on deployment.)

$ curl -sS https://api.axforge.ai/v1/chat/completions \
  -H "Authorization: Bearer $AXFORGE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"g9-39","messages":[{"role":"user","content":"Hello"}]}'

Create an account — your API key is available in the console. 3M free tokens every 30 days with every new account.

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