Model reference · open weights
Ling-lite-1.5 is an open-weight language model from inclusionAI. Ling-lite-1.5 (BF16) weighs 33.6 GB; the smallest configuration that runs it is L40S 48 GB.
Summary of the inclusionAI/Ling-lite-1.5 model card, 2026-10-01
What it is
| Released by | inclusionAI |
|---|---|
| Released | 2025-05-11 |
| Parameters | 16.8B |
| VRAM | 33.6 GB for the weights |
What it runs on
| Card | Requests at once | Context max | Memory | |
|---|---|---|---|---|
| 8K each | 32K each | |||
| RTX 3060 12 GB … RTX 5090 32 GB 5 smaller cards | — | — | — | |
| L40S 48 GB | 19 | 4 | all 32K | 44.0 GB |
| A100 80 GB | 92 | 23 | all 32K | 78.2 GB |
| H100 80 GB | 80 | 20 | all 32K | 78.1 GB |
| RTX PRO 6000 Blackwell 96 GB | 114 | 28 | all 32K | 93.8 GB |
| DGX Spark (GB10) 128 GB unified | 142 | 35 | all 32K | 107 GB |
| H200 141 GB | 208 | 52 | all 32K | 138 GB |
| B200 180 GB | 284 | 71 | all 32K | 176 GB |
| 2× RTX 4090 24 GB tensor parallel | 22 | 5 | all 32K | 23.4 GB a card |
| 2× RTX 3090 24 GB tensor parallel | 23 | 5 | all 32K | 23.4 GB a card |
| 2× RTX 5090 32 GB tensor parallel | 55 | 13 | all 32K | 31.0 GB a card |
| Requests at once | 8K tokens each | 32K tokens each |
|---|---|---|
| 1 | 35.3 GB | 36.7 GB |
| 5 | 37.1 GB | 44.2 GB |
| 8 | 38.5 GB | 49.8 GB |
| 16 | 42.3 GB | 64.9 GB |
| 32 | 49.8 GB | 94.9 GB |
| 64 | 64.9 GB | 155 GB |
One card, with vLLM's small-card settings.
From the model card
Ling is a MoE LLM provided and open-sourced by InclusionAI. We introduce two different sizes, which are Ling-lite and Ling-plus. Ling-lite has 16.8 billion parameters with 2.75 billion activated parameters, while Ling-plus has 290 billion parameters with 28.8 billion activated parameters. Both models demonstrate impressive performance compared to existing models in the industry.
Their structure makes it easy to scale up and down and adapt to different tasks, so users can use these models for a wide range of tasks, from processing natural language to solving complex problems. Furthermore, the open-source nature of Ling promotes collaboration and innovation within the AI community, fostering a diverse range of use cases and enhancements.
As more developers and researchers engage with the platform, we can expect rapid advancements and improvements, leading to even more sophisticated applications. This collaborative approach accelerates development and ensures that the models remain at the forefront of technology, addressing emerging challenges in various fields.
You can download the following table to see the various parameters for your use case. If you are located in mainland China, we also provide the model on ModelScope.cn to speed up the download process.
| Model | #Total Params | #Activated Params | Context Length | Download |
|---|---|---|---|---|
| Ling-lite-base-1.5 | 16.8B | 2.75B | 128K | 🤗 HuggingFace |
| Ling-lite-1.5 | 16.8B | 2.75B | 128K | 🤗 HuggingFace |
| Benchmark | #shots | Ling-lite-1.5 | Ling-lite | Qwen3-4B-Instruct | Qwen3-8B-Instruct | Moonlight-16B-A3B-Instruct | LLaMA3.1-8B |
|---|---|---|---|---|---|---|---|
| MMLU(EM) | 5 | 74.33 | 71.27 | 70.09 | 75.97 | 70.74 | 68.67 |
| GPQA(Pass@1) | 0 | 36.55 | 29.73 | 40.4 | 47.10 | 19.51 | 27.59 |
| HumanEval(Pass@1) | 0 | 87.27 | 84.38 | 81.94 | 85.29 | 72.94 | 67.23 |
| LiveCodeBench 2408-2502 (Pass@1) | 0 | 22.7 | 18.94 | 21.8 | 26.88 | 14.76 | 18.41 |
| LCBench(pass@1) | 0 | 60.37 | 46.57 | 48.61 | 60.03 | 28.39 | 23.13 |
| Math(EM) | 0 | 82.62 | 72.80 | 81.46 | 82.70 | 67.1 | 52.42 |
| AIME2024(pass@1) | 0 | 21.88 | 10.21 | 20.62 | 26.25 | 6.88 | 7.29 |
| OlympiadBench(pass@1) | 0 | 52.30 | 36.44 | 54.33 | 56.11 | 32.85 | 17.04 |
| BBH(EM) | 0 | 75.75 | 66.38 | 78.21 | 79.33 | 63.45 | 68.05 |
| IFEval(Prompt Strict) | 0 | 77.70 | 77.99 | 81.06 | 83.55 | 49.01 | 73.01 |
| BFCL_live | 0 | 72.15 | 67.93 | 65.35 | 69.83 | 47.14 | 49.98 |
Evaluation results on the Needle In A Haystack (NIAH) tests. Ling-Lite-1.5 has improved long text generation capability and performs well across most context window lengths up to 128K.
Here is a code snippet to show you how to use the chat model with transformers:
from transformers import AutoModelForCausalLM, AutoTokenizer
model_name = "inclusionAI/Ling-lite-1.5"
model = AutoModelForCausalLM.from_pretrained(
model_name,
torch_dtype="auto",
device_map="auto"
)
tokenizer = AutoTokenizer.from_pretrained(model_name)
prompt = "Give me a short introduction to large language models."
messages = [
{"role": "system", "content": "You are Ling, an assistant created by inclusionAI"},
{"role": "user", "content": prompt}
]
text = tokenizer.apply_chat_template(
messages,
tokenize=False,
add_generation_prompt=True
)
model_inputs = tokenizer([text], return_tensors="pt").to(model.device)
generated_ids = model.generate(
**model_inputs,
max_new_tokens=512
)
generated_ids = [
output_ids[len(input_ids):] for input_ids, output_ids in zip(model_inputs.input_ids, generated_ids)
]
response = tokenizer.batch_decode(generated_ids, skip_special_tokens=True)[0]
Please refer to Github
This code repository is licensed under the MIT License.
If you find our work helpful, feel free to give us a cite.
@article{ling,
title = {Every FLOP Counts: Scaling a 300B Mixture-of-Experts LING LLM without Premium GPUs},
author = {Ling Team},
journal = {arXiv preprint arXiv:2503.05139},
year = {2025}
}
Quoted from the model card on Hugging Face. The full card is behind the Hugging Face link above.