AI Models · Open-Source vs Paid

NENex-N2-Pro Open vs GPT-4.1 Paid

Nex-N2-Pro vs GPT-4.1 compared — price per token, context window, multimodality, openness and which to choose. Can the open-source model replace the paid one? Full 2026 breakdown.

Prices & specs refreshed from live data · olud.ai

Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.

NENex-N2-ProOpenNex agi
$0.25 /M input
$1 /M outputNo per-token fees if you self-host
TypeOpen-weight
Context window262K tokens
MultimodalYes
Self-hostYes
GPT-4.1PaidOpenAI
$2 /M input
$8 /M outputManaged API (no infra to run)
TypeProprietary
Context window1M tokens
MultimodalYes
Self-hostNo
Choose Nex-N2-Pro if you want to self-host, keep your data private and skip per-token fees — it's open-weight and runs on your own hardware. Choose GPT-4.1 if you want frontier capability through a managed API with zero infrastructure to run.

Nex-N2-Pro vs GPT-4.1 specs

SpecNex-N2-ProGPT-4.1Winner
MakerNex agiOpenAI
TypeOpen-weightProprietaryNENex-N2-Pro
Context window262K tokens1M tokensGPT-4.1
Input price$0.25/M · free self-host$2/MNENex-N2-Pro
Output price$1/M · free self-host$8/MNENex-N2-Pro
Vision / multimodalYesYes= Tie
Tool / function callingYesYes= Tie
Self-hostableYesNo (API only)NENex-N2-Pro
LicenseOpen weightsProprietaryNENex-N2-Pro

Price gap & when to choose each

8.0×cheaper per output token

Nex-N2-Pro is ~8.0× cheaper than GPT-4.1 on output tokens ($1 vs $8 per M tokens).

NEChoose Nex-N2-Pro if…
  • You want to self-host or run on your cloud
  • You prioritize data privacy & control
  • You want the lowest operating costs
  • You are building open or reproducible AI
Choose GPT-4.1 if…
  • You want frontier performance through a managed API
  • You need the longer 1M context window
  • You value reliability & ecosystem
  • You don't want to manage infrastructure

Feature comparison

CapabilityNex-N2-ProGPT-4.1
Open weights (downloadable)
Self-hostable
Runs fully offline
Vision / multimodal
Tool / function calling
1M+ context window

Benchmarks: Nex-N2-Pro vs GPT-4.1

Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).

Nex-N2-Pro delivers 8.6× more intelligence per dollar.
Nex-N2-Pro
GPT-4.1
Intelligence index
32.7
13.2
Coding index
59.1
GPQA
89.2%
66.6%
Humanity's Last Exam
33.7%
4.2%
Long Context Reasoning
81.7%
68.3%
SciCode
43.3%
IFBench
66.2%
43%
τ²-Bench
81.6%
47.1%
τ-Bench Banking
17.5%
Terminal-Bench
67.8%
Math index
34.7
MMLU-Pro
80.6%
LiveCodeBench
45.7%
MATH-500
91.3%
AIME
43.7%
AIME 2025
34.7%
Terminal-Bench Hard
13.6%
Speed
125.6 tok/s
0 tok/s
Latency
0.93s
0s
Intelligence per $
32.7
3.8

Benchmark data by Artificial Analysis.

How Nex-N2-Pro and GPT-4.1 score

🏆 Best value & openness: Nex-N2-Pro (4.7 vs 3.2 / 5)
CriterionNex-N2-ProGPT-4.1
Cost-efficiency4.53.5
Context window4.05.0
Openness5.01.5
Self-hosting5.01.0
Multimodality5.05.0

Scores come from live data — output price (cost), context length, open vs closed weights (openness & self-hosting) and vision/tool support (multimodality). Raw task quality isn't scored here; it depends on your benchmark — see the verdict.

What each model is

Nex-N2-Pro Open

Nex agi · Open-weight

Nex-N2-Pro is an agentic mixture-of-experts model from Nex AGI, with 17B active parameters out of 397B total. Built on the Qwen3.5 architecture, it accepts text and image input and produces...

GPT-4.1 Paid

OpenAI · Proprietary

GPT-4.1 is a flagship large language model optimized for advanced instruction following, real-world software engineering, and long-context reasoning. It supports a 1 million token context window and outperforms GPT-4o and...

Other models in these families

These variants are tracked but not compared here — one page per family keeps the comparison readable.

Other variants tracked
Nex-N2-Mini
Other variants tracked
GPT-4.1 (batch)GPT-4.1 MiniGPT-4.1 Mini (batch)GPT-4.1 NanoGPT-4.1 Nano (batch)

Frequently asked questions

Is Nex-N2-Pro as good as GPT-4.1?

Nex-N2-Pro is open-weight and competitive on many tasks, but GPT-4.1 may still lead on the hardest reasoning and agentic work. The gap keeps narrowing — benchmark both on your actual use case before deciding.

Can I run Nex-N2-Pro locally?

Yes. Nex-N2-Pro has open weights, so you can self-host it on your own GPUs or run it via a low-cost API. GPT-4.1 is API-only and cannot be self-hosted.

How much cheaper is Nex-N2-Pro?

Nex-N2-Pro costs $1/M output vs $8/M for GPT-4.1 — roughly 8x cheaper via API, and free if you self-host.

Nex-N2-Pro vs GPT-4.1 — which should I pick in 2026?

Choose Nex-N2-Pro if you want to self-host, keep your data private and skip per-token fees — it's open-weight and runs on your own hardware. Choose GPT-4.1 if you want frontier capability through a managed API with zero infrastructure to run.

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