Nex AGI: DeepSeek V3.1 Nex N1

Nex AGI: DeepSeek V3.1 Nex N1

nex-agi · Released Dec 8, 2025
35
Our Score

DeepSeek V3.1 Nex-N1 is the flagship release of the Nex-N1 series — a post-trained model designed to highlight agent autonomy, tool use, and real-world productivity. Nex-N1 demonstrates competitive performance across all evaluation scenarios, showing particularly strong results in practical coding and HTML generation tasks.

$0.27 / 1M Input Price
$1.00 / 1M Output Price
131,072 tokens Context Window
163,840 tokens Max Output

Capabilities

Tool Use Function Calling

Architecture

ModalityText → Text
TokenizerDeepSeek

Performance Indices

Source: Artificial Analysis

16.5 Intelligence Index
16.4 Coding Index
14.8 Agentic Index
26 Math Index

Benchmark Scores

Evaluations

GPQA Diamond 55.7%
Graduate-level scientific reasoning
HLE 3.6%
Humanity's Last Exam
MMLU Pro 75.2%
Multi-task language understanding
LiveCodeBench 35.9%
Live coding evaluation
SciCode 35.4%
Scientific computing
MATH 500 88.7%
Mathematical problem-solving
AIME 25.3%
Competition mathematics
AIME 2025 26%
Competition mathematics (2025)
IFBench 34.8%
Instruction following
LCR 29%
Long-context reasoning
TerminalBench Hard 6.8%
Agentic terminal tasks
τ²-Bench 22.8%
Conversational agent benchmark

Benchmark data from Artificial Analysis and Hugging Face

Model Information

OpenRouter ID nex-agi/deepseek-v3.1-nex-n1
Providernex-agi
Release Date December 8, 2025
Context Length131,072 tokens
Max Completion163,840 tokens
Status Active

Pricing

Token Type Cost per 1M tokens Cost per 1K tokens
Input $0.27 $0.000270
Output $1.00 $0.001000

Live Performance

Live endpoint metrics — refreshed every 30 minutes.

100%
Avg Uptime
1,513ms
Best Latency (TTFT)
28 tok/s
Best Throughput
1/1
Active Endpoints
Available via: SiliconFlow