Nex AGI: DeepSeek V3.1 Nex N1

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Author's Description

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...

Key Specifications
Cost
$$$
Context
131K
Released
Dec 08, 2025
Speed
Ability
Reliability
Supported Parameters

This model supports the following parameters:

Response Format Structured Outputs Tool Choice Top P Temperature Tools Frequency Penalty
Features

This model supports the following features:

Structured Outputs Tools Response Format
Performance Summary

DeepSeek V3.1 Nex-N1, nex-agi's flagship post-trained model, demonstrates competitive performance across various evaluation scenarios, particularly excelling in agent autonomy, tool use, and real-world productivity. The model exhibits competitive response times, ranking in the 47th percentile across eight benchmarks. It also offers cost-effective solutions, placing in the 63rd percentile for pricing. A standout feature is its exceptional reliability, achieving a 100% success rate across all benchmarks, indicating consistent and usable responses without technical failures. In terms of specific benchmark performance, Nex-N1 achieved perfect accuracy in both Hallucinations (100.0%) and Ethics (100.0%), showcasing its ability to acknowledge uncertainty and adhere to ethical principles. It performed strongly in General Knowledge (98.5%) and Mathematics (91.0%), demonstrating robust understanding across diverse academic fields. The model also showed good capabilities in Reasoning (80.0%) and Instruction Following (69.0%), with the latter being a particular strength at the 74th percentile. While its Coding accuracy (84.0%) is solid, its Email Classification (96.0%) performance, though high, ranks lower compared to other models. Overall, Nex-N1's key strengths lie in its reliability, ethical reasoning, and ability to avoid hallucinations, alongside strong general knowledge and mathematical skills. Its competitive pricing and consistent performance make it a compelling option for practical applications.

Model Pricing

Current Pricing

Feature Price (per 1M tokens)
Prompt $0.135
Completion $0.5

Price History

Available Endpoints
Provider Endpoint Name Context Length Pricing (Input) Pricing (Output)
SiliconFlow
SiliconFlow | nex-agi/deepseek-v3.1-nex-n1 131K $0.135 / 1M tokens $0.5 / 1M tokens
Benchmark Results
Benchmark Category Reasoning Strategy Free Executions Accuracy Cost Duration