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Ling-3.0-flash

Name: Ling-3.0-flash
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🤗 Hugging Face | 🤖 ModelScope | 🐙 OpenRouter

Introduction

We're introducing Ling-3.0-flash, our next-generation native hybrid reasoning model. Operating with 124B total and 5.1B active parameters (~12.4% and ~8.1% of our previous 1T-class flagship Ring-2.6-1T), Ling-3.0-flash matches or outperforms its predecessor across key benchmarks.

Key highlights of the model are summarized below:

Native Hybrid-Linear Architecture: Ling-3.0 adopts a native hybrid linear attention architecture from the very start of pretraining (5:1 alternating stacking of Kimi Delta Attention (KDA) and MLA), upgraded with KDA fine-grained diagonal gating and 1/64 sparse MoE. With 124B total parameters and 5.1B activated parameters, it achieves a synergistic leap in long-context efficiency and computational cost.
Remarkable Efficiency & Performance: Engineered for speed, compute efficiency, and production deployment, Ling-3.0-flash delivers class-defying performance against both larger SOTA competitors and previous-generation flagships. Activating only 5.1B parameters per token, it provides impressive reasoning, instruction following, and long-context capabilities to empower complex agentic workflows in production environments.
Comprehensive Agentic Evolution: Tailored for real-world productivity workflows, the model incorporates 10,000+ interactive training environments to achieve end-to-end closed-loop execution across Coding, General, and Deep Research Agent tasks. It natively integrates the SGLang HiCache + Mooncake hierarchical caching architecture (featuring physical dual-pools and a cluster-shared L3 cache), eliminating redundant recomputation during long-horizon interactions and reducing Time to First Token (TTFT) by 60% to over 80% in long-input scenarios.

Model Overview

The model summary information and architecture diagram are as follows:

Architecture	Hybrid-linear MoE
Parameter Scale	Total 124B, Activated 5.1B
Transformer Layers	35 KDA + 7 Gated MLA (5:1)
Number of Dense Layers	2
Number of Routed Experts	512
Number of Shared Experts	1
Number of Activated Experts	8
Attention Heads	32
Hidden Size	2560
Expert Intermediate Size	768
Dense Intermediate Size	6144
Vocabulary Size	157184
Context Training Schedule	8K -> 32K -> 256K

Evaluation

We have conducted a comprehensive evaluation of Ling-3.0-flash across multiple authoritative benchmarks. Ling-3.0-flash performs strongly on representative code/agent benchmarks such as SWE-Bench Pro, SWE-Bench Multilingual, Tau3-banking-AA, MCP-Atlas and SkillsBench, etc. In practice, Ling-3.0-flash delivers a strong user experience across frameworks including Claude Code,Kilo Code,Qwen Code,Hermes Agent,and OpenClaw, etc. Beyond agentic tasks, Ling-3.0-flash also delivers strong performance across general knowledge,mathematical reasoning,instruction following,and long-context understanding.

Thinking mode is enabled by default. Unless otherwise specified, the default parameters for Ling-3.0-flash are as follows: temperature=0.6, top_p=0.95, top_k=20.

SWE-Bench Series: Evaluated using OpenHands as the agent harness with tailored prompts. Decoding uses temperature=0.6, top_p=0.95, max_new_tokens=32K, with a 256K context window.

Terminal-Bench 2.1: Evaluated under the Artificial Analysis (AA) protocol using the default Terminus 2 harness, a unified 2-hour timeout, the provided JSON parser in preserve-thinking mode, and 3 runs per task (mean). Decoding uses temperature=0.6, top_p=1.0, max_new_tokens=32K, with a 256K context window.

MiniAppBench: A 500-task coding benchmark evaluating whether models can turn a single user request into complete, usable interactive HTML apps in real-world application-generation scenarios. Evaluated with temperature=1.0, top_p=1.0, max_tokens=128K.

AntSWEBench: AntSWEBench is an internally used software engineering benchmark that covers mainstream programming languages such as Java, JavaScript, and Python, including various development scenarios like new feature, bug fix, and code refactoring.

Tau3-banking-AA: Aligned with the AA leaderboard, utilizing GPT-5.4-mini (medium reasoning) for both the user simulator and the natural-language assertion judge.

MCP-Atlas: Evaluated on the 500-task public set using the official v1 harness with a 20-turn limit and Gemini-2.5-Pro as the claim-coverage judger.

SkillsBench: Evaluated via kilo-code on 87 tasks (excluding external API-dependent tasks), averaged over 3 runs.

GDPval v2-AA: Evaluated on the public 220-task benchmark using the official Stirrup harness, with a 250-turn limit and a 5-hour timeout.

Search-agent: For all search‑agent tasks, evaluations are performed using an internal harness. The basic ReAct paradigm is adopted for single-agent evaluation, while a multi-agent setup is employed for BrowseComp. The reported metric is the average pass@1.

WideSearch: Evaluated using the official prompt and the official judge model GPT-4.1 on the corrected version of the dataset.

Draco: Scored based on official rubrics per question, with the final score calculated as the average across all questions using Claude Opus 4.6 as the scoring model.

BrowseComp (Single-Agent): Evaluated using a resume strategy for context management: once the context reaches a 64K-token threshold, the trajectory is summarized, the original history is discarded, and execution is resumed from the summary.

BrowseComp (Multi-Agent): Evaluated using an internal multi-agent search harness based on SearchSwarm/Tongyi DeepResearch, configured with temperature=0.85, top_p=0.95, max_tokens=8K, and main/sub-agent context windows of 128K and 64K, respectively.

Quickstart

SGLang

The hardware- and recipe-specific launch matrix (BF16/FP8 × Low-Latency / High-Throughput / HiCache + Mooncake), with a live command generator and verified configurations, lives in the SGLang cookbook:

Cookbook: https://docs.sglang.io/cookbook/autoregressive/InclusionAI/Ling-3.0-flash

Install SGLang

Use the pre-built image that tracks the Ling-3.0 runtime:

docker pull lmsysorg/sglang:dev-Ling-3.0-flash

Run Inference

Recommended low-latency recipe (built-in MTP / NEXTN, 256K YaRN context) on 4× 141GB-class GPUs (H20-3e) or 4-GPU Blackwell nodes:

bash

docker run --rm --gpus all --ipc=host --shm-size 32g \
  -p 30000:30000 \
  -e HF_TOKEN=<your-hf-token> \
  lmsysorg/sglang:dev-Ling-3.0-flash \
  env SGLANG_ALLOW_OVERWRITE_LONGER_CONTEXT_LEN=1 \
  python3 -m sglang.launch_server \
    --model-path inclusionAI/Ling-3.0-flash \
    --tp 4 \
    --context-length 262144 \
    --speculative-algorithm NEXTN \
    --mem-fraction-static 0.8 \
    --host 0.0.0.0 \
    --port 30000

On 80GB cards (H100 / H800) use --tp 8 with the same flags; see the cookbook cell for your hardware.

Client

Thinking is enabled by default by both the chat template and the ling3 reasoning parser. Disable it per request with "chat_template_kwargs": {"enable_thinking": false}. We recommend the sampling parameters temperature=0.6, top_p=0.95, and top_k=20.

bash

curl -s http://localhost:30000/v1/chat/completions \
  -H "Content-Type: application/json" \
  -d '{"model": "inclusionAI/Ling-3.0-flash",
       "messages": [{"role": "user", "content": "hello!"}],
       "stream": true,
       "temperature": 0.6,
       "top_k": 20,
       "top_p": 0.95
     }'

For --reasoning-parser ling3 / --tool-call-parser ling3, the HiCache + Mooncake L3 setup, and GSM8K / bench_serving reproduction commands, see the cookbook page linked above.

vLLM

Install our vLLM

bash

pip install uv

uv venv ~/my_ling_env

source ~/my_ling_env/bin/activate

git clone -b ling_3_0 https://github.com/inclusionAI/vllm-ling-v3.git

cd vllm-ling-v3

VLLM_USE_PRECOMPILED=1 uv pip install --editable . --torch-backend=auto

Run Inference

Here is the example to run Ling-3.0-flash with 4 GPUs, where the server port is ${PORT}:

Server

Since the model is trained with MTP, we recommend enabling MTP during inference (i.e., --speculative-config) for lower latency.

bash

vllm serve "$MODEL_PATH" \
    --port "$PORT" \
    --trust-remote-code \
    --served-model-name auto \
    --tensor-parallel-size 4 \
    --gpu-memory-utilization 0.85 \
    --enable-prefix-caching \
    --mamba-cache-mode align \
    --enable-auto-tool-choice \
    --tool-call-parser ling3 \
    --reasoning-parser ling3 \
    --speculative-config '{"method":"mtp","num_speculative_tokens":3}'

Client

We recommend using the sampling parameters temperature=0.6, top_p=0.95, and top_k=20, and enabling enable_thinking for better performance.

bash

curl -s http://${MASTER_IP}:${PORT}/v1/chat/completions \
  -H "Content-Type: application/json" \
  -d '{"model": "auto",
       "messages": [{"role": "user", "content": "hello!"}],
       "chat_template_kwargs": {"enable_thinking": true},
       "stream": true,
       "temperature": 0.6, 
       "top_k": 20,
       "top_p": 0.95
     }'

Ishowbackup/Ling-3.0-flash

Introduction

Model Overview

Evaluation

Quickstart

SGLang

Install SGLang

Run Inference

vLLM

Install our vLLM

Run Inference

Ishowbackup/
Ling-3.0-flash