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Nex-N2-mini

Name: Nex-N2-mini
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🤗 Model | 💻 Github | 🧭 ModelScope | 🚀 Nex-AGI

Nex-N2

An agentic model with Agentic Thinking.

Today, we are officially releasing and open-sourcing our next-generation model, Nex-N2 — an agent model built for real-world productivity scenarios. With first-tier coding and agentic capabilities, Nex-N2 keeps driving complex, long-horizon tasks forward in real environments to deliver stable, end-to-end results.

Over the past year, a paradigm shift led by Vibe Coding and Harness Engineering has been redefining the limits of LLM agents. From dialogue, to reasoning, to agents that execute long-horizon tasks with environmental feedback, the tasks models must handle keep growing harder, the contexts longer, and the environments more realistic. The core of next-generation model competition is no longer whether a model can think, but whether it can reliably and efficiently turn thinking into actions that are executable, verifiable, and iterable.

Rather than treating reasoning, tool use, and environment execution as separate capabilities, Nex-N2 unifies them through an Agentic Thinking framework that connects requirement understanding, task planning, code implementation, environmental feedback, evaluation and debugging, and continuous iteration into a single closed loop. The framework has two parts:

Adaptive Thinking lets the model decide on its own when to think and how deeply — executing simple actions quickly while reasoning thoroughly on critical decisions.
Coherent Thinking carries one consistent reasoning paradigm across general reasoning and diverse agentic tasks, staying consistent across tasks and modalities to enable stable capability transfer.

Across real agentic workflows — agentic coding, deep research, tool calling, and terminal execution — Nex-N2 reaches first-tier performance, with substantial gains over the previous-generation Nex-N1 on multiple authoritative benchmarks. In real productivity scenarios such as OpenClaw one-person-company workflows, end-to-end game development, and web and multimodal generation, it likewise demonstrates outstanding usability, robustness, and stability.

Open Source

In keeping with our commitment to open source, we are releasing both Nex-N2-Pro and Nex-N2-mini as open-source models starting today.

Nex-N2-Pro: Hugging Face | ModelScope
Nex-N2-mini: Hugging Face | ModelScope
Early Access: SiliconFlow

We welcome developers and enterprises to integrate and try Nex-N2 and share their feedback.

Performance

We evaluate Nex-N2 in real agentic workflows along three directions — agentic tasks, coding tasks, and general tasks — covering benchmarks across tool calling, search-based decision-making, software engineering, and terminal execution. Nex-N2-Pro delivers strong performance that keeps pace with top-tier models such as GPT-5.5 and Opus 4.7: it excels at coding (e.g., 75.3 on Terminal-Bench 2.1) and long-horizon tasks (1585 on GDPval), and shows especially strong generalization and competitiveness on newer benchmarks like SWE-Atlas and DeepSWE. On general capability and core reasoning, it stands on par with leading frontier models.

Nex-N2 ships in two variants, both post-trained on the Qwen3.5 series: Nex-N2-Pro (built on Qwen3.5-397B-A17B) and Nex-N2-mini (built on Qwen3.5-35B-A3B-Base), covering different latency and quality trade-offs. The table below reports their scores alongside leading proprietary and open models across our full evaluation suite.

Benchmark	Nex-N2-mini	Nex-N2-Pro	GPT-5.5	Opus 4.7	Kimi-K2.6	GLM-5.1	MiniMax M3	DeepSeek-V4-Pro
Agent
BrowseComp	74.1	83.7	84.4	79.8	83.2	79.3	83.5	83.4
GDPval	1402	1585	1769	1753	1481	1535	-	1554
Toolathlon	33.3	51.9	55.6	52.8	50.0	40.7	-	51.8
WildClawBench	47.7	53.5	58.2	62.2	-	48.2	-	43.7
WideSearch	62.0	75.6	-	-	80.8	-	-	-
TAU3	65.9	71.1	-	-	-	70.6	-	-
Coding & SWE
SWE-Bench Pro	50.2	58.8	58.6	64.3	58.6	58.4	59.0	55.4
Terminal-Bench 2.1	60.7	75.3	83.4	69.7	-	58.7	66.0	72.0
DeepSWE	8.0	33.6	70	54	24	18	-	8
SWE-Bench Verified	74.4	80.8	82.9	87.6	80.2	-	80.5	80.6
SWE Atlas QnA	31.5	37.9	45.4	45.2	-	-	37.9	-
SWE Atlas RF	30.0	32.9	44.8	48.6	-	-	-	-
SWE Atlas TW	23.3	40.0	42.6	38.2	-	-	30.8	-
General & Reasoning
GPQA Diamond	82.6	90.7	93.6	94.2	90.5	86.2	-	90.1
IFEval	89.1	94.0	-	-	94.5	94.5	-	91.9
Apex	9.4	36.5	-	-	24.0	11.5	-	38.3

Usage

Local Deployment

Note: For the best performance with Nex-series models, we recommend serving them with our customized sglang fork.

First, install our sglang fork:

bash

# Use the customized `sglang` fork
git clone https://github.com/nex-agi/sglang.git
cd sglang

# Install the python packages
pip install --upgrade pip
pip install -e "python"

Nex-N2-Pro

Launch the server (example on two 8× H100 servers with CUDA 13.0):

bash

# Multi-node (2 nodes). Run the same command on every node with:
#   <node-rank> = 0 on the head node, 1 on the other node
#   <node0-ip>  = IP of the head node (reachable from all others)
python -m sglang.launch_server \
  --model-path /path/to/your/model  \
  --tp 16 \
  --nnodes 2 \
  --node-rank <node-rank> \
  --dist-init-addr <node0-ip>:20000 \
  --reasoning-parser qwen3 \
  --tool-call-parser qwen3_coder \
  --mamba-scheduler-strategy extra_buffer

Nex-N2-mini

Launch the server (example on one 2× H100 server with CUDA 13.0):

bash

python -m sglang.launch_server \
  --model-path /path/to/your/model  \
  --tp 2 \
  --reasoning-parser qwen3 \
  --tool-call-parser qwen3_coder \
  --mamba-scheduler-strategy extra_buffer

Docker Deployment

We also provide a prebuilt Docker image with our customized sglang fork preinstalled: nexagi/sglang:v0.5.12. The launch command is the same as above.

Nex-N2-Pro

bash

# Multi-node (2 nodes). Run the same command on every node with:
#   <node-rank> = 0 on the head node, 1 on the other node
#   <node0-ip>  = IP of the head node (reachable from all others)
docker run --gpus all --shm-size 32g --network host \
  -v /path/to/your/model:/model \
  nexagi/sglang:v0.5.12 \
  python3 -m sglang.launch_server \
    --model-path /model \
    --tp 16 \
    --nnodes 2 \
    --node-rank <node-rank> \
    --dist-init-addr <node0-ip>:20000 \
    --host 0.0.0.0 --port 30000 \
    --reasoning-parser qwen3 \
    --tool-call-parser qwen3_coder \
    --mamba-scheduler-strategy extra_buffer

Nex-N2-mini

Single node with 2× H100:

bash

docker run --gpus all --shm-size 32g --ipc=host \
  -p 30000:30000 \
  -v /path/to/your/model:/model \
  nexagi/sglang:v0.5.12 \
  python3 -m sglang.launch_server \
    --model-path /model \
    --tp 2 \
    --host 0.0.0.0 --port 30000 \
    --reasoning-parser qwen3 \
    --tool-call-parser qwen3_coder \
    --mamba-scheduler-strategy extra_buffer

Recommended Sampling Parameters

For the best generation quality, we recommend the following sampling parameters:

temperature: 0.7
top_p: 0.95
top_k: 40

Function Calling

Nex-series models support robust function-calling capabilities. To enable function calling, add the --tool-call-parser qwen3_coder flag when launching the server:

python -m sglang.launch_server --model-path /path/to/your/model --tool-call-parser qwen3_coder

Reasoning Parser

Nex-series models emit explicit reasoning traces. Add the --reasoning-parser qwen3 flag to parse the reasoning content separately from the final response. It can be combined with the function-calling parser above:

python -m sglang.launch_server --model-path /path/to/your/model --tool-call-parser qwen3_coder --reasoning-parser qwen3

eadx/Nex-N2-mini

Nex-N2

Open Source

Performance

Usage

Local Deployment

Nex-N2-Pro

Nex-N2-mini

Docker Deployment

Nex-N2-Pro

Nex-N2-mini

Recommended Sampling Parameters

Function Calling

Reasoning Parser

eadx/
Nex-N2-mini