AI Models · Open-Source vs Paid

Granite 4.2 8B Open vs AIAion 3.5 Mini Paid

Granite 4.2 8B vs Aion 3.5 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.

Granite 4.2 8BOpenIBM
$0.06 /M input
$0.25 /M outputNo per-token fees if you self-host
TypeOpen-weight
Context window131K tokens
MultimodalNo
Self-hostYes
AIAion 3.5 MiniPaidAionLabs
$0.7 /M input
$1.4 /M outputManaged API (no infra to run)
TypeProprietary
Context window262K tokens
MultimodalNo
Self-hostNo
Choose Granite 4.2 8B 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 3.5 Mini if you want frontier capability through a managed API with zero infrastructure to run.

Granite 4.2 8B vs Aion 3.5 Mini specs

SpecGranite 4.2 8BAion 3.5 MiniWinner
MakerIBMAionLabs–
TypeOpen-weightProprietaryGranite 4.2 8B
Context window131K tokens262K tokensAIAion 3.5 Mini
Input price$0.06/M · free self-host$0.7/MGranite 4.2 8B
Output price$0.25/M · free self-host$1.4/MGranite 4.2 8B
Vision / multimodalNoNo–
Tool / function callingYesYes= Tie
Self-hostableYesNo (API only)Granite 4.2 8B
LicenseApache 2.0ProprietaryGranite 4.2 8B

Price gap & when to choose each

5.6×cheaper per output token

Granite 4.2 8B is ~5.6× cheaper than Aion 3.5 Mini on output tokens ($0.25 vs $1.4 per M tokens).

Choose Granite 4.2 8B 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
AIChoose Aion 3.5 Mini if…
  • You want frontier performance through a managed API
  • You need the longer 262K context window
  • You value reliability & ecosystem
  • You don't want to manage infrastructure

Feature comparison

CapabilityGranite 4.2 8BAion 3.5 Mini
Open weights (downloadable)✓✗
Self-hostable✓✗
Runs fully offline✓✗
Vision / multimodal✗✗
Tool / function calling✓✓
1M+ context window✗✗

Benchmarks: Granite 4.2 8B vs Aion 3.5 Mini

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

Granite 4.2 8B
Aion 3.5 Mini
Intelligence index
11.1
–
Coding index
22.4
–
GPQA
63.1%
–
Humanity's Last Exam
9.7%
–
Long Context Reasoning
45%
–
SciCode
31.5%
–
τ-Bench Banking
7.6%
–
Terminal-Bench
18.4%
–
Speed
115.7 tok/s
–
Latency
0.28s
–
Intelligence per $
103.7
–

Benchmark data by Artificial Analysis.

How Granite 4.2 8B and Aion 3.5 Mini score

🏆 Best value & openness: Granite 4.2 8B (4.4 vs 2.9 / 5)
CriterionGranite 4.2 8BAion 3.5 Mini
Cost-efficiency5.04.5
Context window3.54.0
Openness5.01.5
Self-hosting5.01.0
Multimodality3.53.5

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

Granite 4.2 8B Open

IBM · Open-weight

Granite 4.2 8B is a dense reasoning model from IBM. It is suited for mathematics, code generation, multilingual dialogue, and agentic workflows that need multi-step reasoning. It supports full, low-effort,...

Aion 3.5 Mini Paid

AionLabs · Proprietary

Aion 3.5 Mini is a multi-model roleplaying and storytelling system from AionLabs, built on the GLM family of models. It is the smaller, lower-cost sibling of Aion 3.5 and uses...

Other models in these families

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

Other variants tracked
Granite 4.0 Micro

Frequently asked questions

Is Granite 4.2 8B as good as Aion 3.5 Mini?

Granite 4.2 8B is open-weight and competitive on many tasks, but Aion 3.5 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 Granite 4.2 8B locally?

Yes. Granite 4.2 8B has open weights, so you can self-host it on your own GPUs or run it via a low-cost API. Aion 3.5 Mini is API-only and cannot be self-hosted.

How much cheaper is Granite 4.2 8B?

Granite 4.2 8B costs $0.25/M output vs $1.4/M for Aion 3.5 Mini — roughly 6x cheaper via API, and free if you self-host.

Granite 4.2 8B vs Aion 3.5 Mini — which should I pick in 2026?

Choose Granite 4.2 8B 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 3.5 Mini if you want frontier capability through a managed API with zero infrastructure to run.

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