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AI||3 min read

Nex-N2.5-mini Review: A Compact Agentic Model for Computer Use and Web Tasks

Evaluating Nex-AGI's smallest agentic model for lightweight workflows, computer use, and web browsing tasks - free, open-source, and capable for experimentation.

By Sameer Khan

Quick Answer Table

ModelBest ForPrice (per 1M tokens)Pick If
Nex-N2.5-miniLightweight agentic tasks, computer useFree (OpenRouter)You need a free, open-source model for basic agentic workflows
Nex-N2.5-ProBalanced performance, multimodalTBDYou need stronger agentic capabilities with vision
Nex-N2.5-MaxComplex reasoning, trillion-parameter scaleTBDYou need maximum performance for research/productivity
Claude Opus 5Top-tier agentic performance$15 input / $75 outputYou need the best available agentic performance
GPT-5.6 SolGeneral purpose with strong agenticTBDYou need a versatile model with good agentic skills

Overview

Nex-N2.5-mini is the smallest member of the Nex-N2.5 family of agentic models released by Nex-AGI on September 8, 2026. Designed for lightweight agentic workflows, it focuses on computer use, web browsing, and visually grounded tasks while maintaining strong performance in coding benchmarks.

Key Specifications

Performance Analysis

Coding Benchmarks

Nex-N2.5-mini shows solid coding performance, though it trails the larger variants and top competitors:

  • Terminal-Bench 2.1: 73.4% (vs 89.1% for Claude Opus 5)
  • SWE-Bench Pro: 43.8% (vs 79.2% for Claude Opus 5)
  • DeepSWE v1.1: 36.1% (vs 73.7% for Claude Opus 5)

Agentic Workflows

The model demonstrates capable agentic performance for its size:

  • AutomationBench v1.0.6: 32.3% (vs 50.3% for Claude Opus 5)
  • Toolathlon Verified: 54.6% (vs 76.5% for Claude Opus 5 and Kimi-K3)
  • Job Bench: 28.5% (vs 65.7% for Claude Opus 5)
  • BrowseComp: 83.4% (strong web browsing capability)

Computer Use

Strong performance in computer use tasks:

  • OSWorld-Verified: 71.2% (vs 86.1% for Qwen3.8-Max)
  • WebArena-Verified: 63.4% (vs 71.6% for Kimi-K3)
  • Vision2Web: 52.9% (vs 79.8% for GPT-5.6 Sol)

Pricing and Accessibility

  • OpenRouter: Available for free usage (rate limits may apply)
  • Hugging Face: Weights available under Apache 2.0 license
  • Self-hosted: Docker image provided (nexagi/sglang:v0.5.18-nex-patch)
  • No official per-token pricing published - free access suggests community/research focus

Use Case Recommendations

Choose Nex-N2.5-mini if:

  • You need a free, open-source agentic model
  • Your use case involves light computer use or web automation
  • You're experimenting with agentic workflows and want zero-cost entry
  • You prefer self-hosting with Docker for data privacy

Consider alternatives if:

  • You need maximum agentic performance (consider Claude Opus 5 or Nex-N2.5-Max)
  • You require strong multimodal vision capabilities
  • You have high-volume production needs (free tier may have limits)

Verdict

The Nex-N2.5-mini represents a solid entry point into the Nex-N2.5 agentic family, offering capable performance for lightweight agentic tasks at zero cost. While it doesn't match the top-tier performance of Claude Opus 5 or the larger Nex-N2.5 variants, its free availability and strong showing in computer use benchmarks (particularly BrowseComp at 83.4%) make it an attractive option for developers exploring agentic workflows without financial commitment. The Apache 2.0 license and Docker deployment option further enhance its appeal for experimentation and privacy-sensitive applications.

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