AI Models · Paid vs Paid

Gemini 3.1 Pro Preview Paid vs AIAion-RP 1.0 (8B) Paid

Gemini 3.1 Pro Preview vs Aion-RP 1.0 (8B) compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.

Prices & specs refreshed from live data · olud.ai

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

Gemini 3.1 Pro PreviewPaidGoogle
$2 /M input
$12 /M outputManaged API (no infra to run)
TypeProprietary
Context window1M tokens
MultimodalYes
Self-hostNo
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 Aion-RP 1.0 (8B) for the lower output price ($1.6/M vs $12/M). Choose Gemini 3.1 Pro Preview if you need the larger 1M context window.

Gemini 3.1 Pro Preview vs Aion-RP 1.0 (8B) specs

SpecGemini 3.1 Pro PreviewAion-RP 1.0 (8B)Winner
MakerGoogleAionLabs
TypeProprietaryProprietary
Context window1M tokens33K tokensGemini 3.1 Pro Preview
Input price$2/M$0.8/MAIAion-RP 1.0 (8B)
Output price$12/M$1.6/MAIAion-RP 1.0 (8B)
Vision / multimodalYesNoGemini 3.1 Pro Preview
Tool / function callingYesNoGemini 3.1 Pro Preview
Self-hostableNo (API only)No (API only)
LicenseProprietaryProprietary

Price gap & when to choose each

7.5×cheaper per output token

Aion-RP 1.0 (8B) is ~7.5× cheaper than Gemini 3.1 Pro Preview on output tokens ($1.6 vs $12 per M tokens).

Choose Gemini 3.1 Pro Preview 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
AIChoose Aion-RP 1.0 (8B) if…
  • You want frontier performance through a managed API
  • You want the lower output price
  • You value reliability & ecosystem
  • You don't want to manage infrastructure

Feature comparison

CapabilityGemini 3.1 Pro PreviewAion-RP 1.0 (8B)
Open weights (downloadable)
Self-hostable
Runs fully offline
Vision / multimodal
Tool / function calling
1M+ context window

Benchmarks: Gemini 3.1 Pro Preview vs Aion-RP 1.0 (8B)

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

Gemini 3.1 Pro Preview
Aion-RP 1.0 (8B)
Intelligence index
30.4
Coding index
68.8
GPQA
94.1%
Humanity's Last Exam
47%
Long Context Reasoning
82%
SciCode
58.7%
IFBench
77.1%
τ²-Bench
95.6%
τ-Bench Banking
21.4%
Terminal-Bench
73.8%
Terminal-Bench Hard
53.8%
Speed
125.2 tok/s
Latency
24.48s
Intelligence per $
6.8

Benchmark data by Artificial Analysis.

How Gemini 3.1 Pro Preview and Aion-RP 1.0 (8B) score

🏆 Best value & openness: Gemini 3.1 Pro Preview (3.2 vs 2.3 / 5)
CriterionGemini 3.1 Pro PreviewAion-RP 1.0 (8B)
Cost-efficiency3.54.5
Context window5.02.5
Openness1.51.5
Self-hosting1.01.0
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

Gemini 3.1 Pro Preview Paid

Google · Proprietary

Gemini 3.1 Pro Preview is Google’s frontier reasoning model, delivering enhanced software engineering performance, improved agentic reliability, and more efficient token usage across complex workflows. Building on the multimodal foundation.

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
Gemini 3.1 Pro Preview (batch)Gemini 2.5 ProGemini 2.5 Pro (batch)Gemini 2.5 Pro Preview 05-06Gemini 3.1 Pro Preview Custom ToolsNano Banana Pro (Gemini 3 Pro Image Preview)

Frequently asked questions

Gemini 3.1 Pro Preview vs Aion-RP 1.0 (8B) — which is cheaper?

Aion-RP 1.0 (8B) is cheaper on output ($1.6/M vs $12/M).

Which has the larger context window?

Gemini 3.1 Pro Preview offers the larger context window (1M tokens).

Gemini 3.1 Pro Preview vs Aion-RP 1.0 (8B) — which should I pick in 2026?

Choose Aion-RP 1.0 (8B) for the lower output price ($1.6/M vs $12/M). Choose Gemini 3.1 Pro Preview if you need the larger 1M context window.

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