AI Models · Open-Source vs Paid

NENex-N2-Pro Open vs AIAion-3.0-Mini Paid

Nex-N2-Pro vs Aion-3.0-Mini 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
AIAion-3.0-MiniPaidAionLabs
$0.7 /M input
$1.4 /M outputManaged API (no infra to run)
TypeProprietary
Context window131K tokens
MultimodalNo
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 Aion-3.0-Mini if you want frontier capability through a managed API with zero infrastructure to run.

Nex-N2-Pro vs Aion-3.0-Mini specs

SpecNex-N2-ProAion-3.0-MiniWinner
MakerNex agiAionLabs
TypeOpen-weightProprietaryNENex-N2-Pro
Context window262K tokens131K tokensNENex-N2-Pro
Input price$0.25/M · free self-host$0.7/MNENex-N2-Pro
Output price$1/M · free self-host$1.4/MNENex-N2-Pro
Vision / multimodalYesNoNENex-N2-Pro
Tool / function callingYesYes= Tie
Self-hostableYesNo (API only)NENex-N2-Pro
LicenseOpen weightsProprietaryNENex-N2-Pro

Price gap & when to choose each

NEChoose Nex-N2-Pro if…
  • You want to self-host or run on your cloud
  • You need the longer 262K context window
  • You prioritize data privacy & control
  • You want the lowest operating costs
  • You are building open or reproducible AI
AIChoose Aion-3.0-Mini if…
  • You want frontier performance through a managed API
  • You value reliability & ecosystem
  • You don't want to manage infrastructure

Feature comparison

CapabilityNex-N2-ProAion-3.0-Mini
Open weights (downloadable)
Self-hostable
Runs fully offline
Vision / multimodal
Tool / function calling
1M+ context window

Benchmarks: Nex-N2-Pro vs Aion-3.0-Mini

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

Nex-N2-Pro
Aion-3.0-Mini
Intelligence index
32.7
Coding index
59.1
GPQA
89.2%
Humanity's Last Exam
33.7%
Long Context Reasoning
81.7%
SciCode
43.3%
IFBench
66.2%
τ²-Bench
81.6%
τ-Bench Banking
17.5%
Terminal-Bench
67.8%
Speed
125.6 tok/s
Latency
0.93s
Intelligence per $
32.7

Benchmark data by Artificial Analysis.

How Nex-N2-Pro and Aion-3.0-Mini score

🏆 Best value & openness: Nex-N2-Pro (4.7 vs 2.8 / 5)
CriterionNex-N2-ProAion-3.0-Mini
Cost-efficiency4.54.5
Context window4.03.5
Openness5.01.5
Self-hosting5.01.0
Multimodality5.03.5

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...

Aion-3.0-Mini Paid

AionLabs · Proprietary

Aion-3.0 Mini is a multi-model roleplaying and storytelling system from AionLabs, built on the DeepSeek family of models. It uses a collaborative generation process in which multiple specialized models each...

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

Frequently asked questions

Is Nex-N2-Pro as good as Aion-3.0-Mini?

Nex-N2-Pro is open-weight and competitive on many tasks, but Aion-3.0-Mini 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. Aion-3.0-Mini is API-only and cannot be self-hosted.

Nex-N2-Pro vs Aion-3.0-Mini — 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 Aion-3.0-Mini if you want frontier capability through a managed API with zero infrastructure to run.

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