AI Models · Open-Source vs Paid

NENex-N2-Pro Open vs AIAion-RP 1.0 (8B) Paid

Nex-N2-Pro vs Aion-RP 1.0 (8B) 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-RP 1.0 (8B)PaidAionLabs
$0.8 /M input
$1.6 /M outputManaged API (no infra to run)
TypeProprietary
Context window33K 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-RP 1.0 (8B) if you want frontier capability through a managed API with zero infrastructure to run.

Nex-N2-Pro vs Aion-RP 1.0 (8B) specs

SpecNex-N2-ProAion-RP 1.0 (8B)Winner
MakerNex agiAionLabs
TypeOpen-weightProprietaryNENex-N2-Pro
Context window262K tokens33K tokensNENex-N2-Pro
Input price$0.25/M · free self-host$0.8/MNENex-N2-Pro
Output price$1/M · free self-host$1.6/MNENex-N2-Pro
Vision / multimodalYesNoNENex-N2-Pro
Tool / function callingYesNoNENex-N2-Pro
Self-hostableYesNo (API only)NENex-N2-Pro
LicenseOpen weightsProprietaryNENex-N2-Pro

Price gap & when to choose each

1.6×cheaper per output token

Nex-N2-Pro is ~1.6× cheaper than Aion-RP 1.0 (8B) on output tokens ($1 vs $1.6 per M tokens).

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-RP 1.0 (8B) 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-RP 1.0 (8B)
Open weights (downloadable)
Self-hostable
Runs fully offline
Vision / multimodal
Tool / function calling
1M+ context window

Benchmarks: Nex-N2-Pro vs Aion-RP 1.0 (8B)

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

Nex-N2-Pro
Aion-RP 1.0 (8B)
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-RP 1.0 (8B) score

🏆 Best value & openness: Nex-N2-Pro (4.7 vs 2.3 / 5)
CriterionNex-N2-ProAion-RP 1.0 (8B)
Cost-efficiency4.54.5
Context window4.02.5
Openness5.01.5
Self-hosting5.01.0
Multimodality5.02.0

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...

Aion-RP 1.0 (8B) Paid

AionLabs · Proprietary

Aion-RP-Llama-3.1-8B ranks the highest in the character evaluation portion of the RPBench-Auto benchmark, a roleplaying-specific variant of Arena-Hard-Auto, where LLMs evaluate each other’s responses. It is a fine-tuned base model...

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-RP 1.0 (8B)?

Nex-N2-Pro is open-weight and competitive on many tasks, but Aion-RP 1.0 (8B) 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-RP 1.0 (8B) is API-only and cannot be self-hosted.

How much cheaper is Nex-N2-Pro?

Nex-N2-Pro costs $1/M output vs $1.6/M for Aion-RP 1.0 (8B) — roughly 2x cheaper via API, and free if you self-host.

Nex-N2-Pro vs Aion-RP 1.0 (8B) — 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-RP 1.0 (8B) if you want frontier capability through a managed API with zero infrastructure to run.

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