AI Models · Paid vs Paid

Claude Fable 5.1 Paid vs AIAion-3.0-Mini Paid

Claude Fable 5.1 vs Aion-3.0-Mini 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.

Claude Fable 5.1PaidAnthropic
$10 /M input
$50 /M outputManaged API (no infra to run)
TypeProprietary
Context window1M tokens
MultimodalYes
Self-hostNo
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 Aion-3.0-Mini for the lower output price ($1.4/M vs $50/M). Choose Claude Fable 5.1 if you need the larger 1M context window.

Claude Fable 5.1 vs Aion-3.0-Mini specs

SpecClaude Fable 5.1Aion-3.0-MiniWinner
MakerAnthropicAionLabs
TypeProprietaryProprietary
Context window1M tokens131K tokensClaude Fable 5.1
Input price$10/M$0.7/MAIAion-3.0-Mini
Output price$50/M$1.4/MAIAion-3.0-Mini
Vision / multimodalYesNoClaude Fable 5.1
Tool / function callingYesYes= Tie
Self-hostableNo (API only)No (API only)
LicenseProprietaryProprietary

Price gap & when to choose each

36×cheaper per output token

Aion-3.0-Mini is ~36× cheaper than Claude Fable 5.1 on output tokens ($1.4 vs $50 per M tokens).

Choose Claude Fable 5.1 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
AIChoose Aion-3.0-Mini 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

CapabilityClaude Fable 5.1Aion-3.0-Mini
Open weights (downloadable)
Self-hostable
Runs fully offline
Vision / multimodal
Tool / function calling
1M+ context window

Benchmarks: Claude Fable 5.1 vs Aion-3.0-Mini

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

Claude Fable 5.1
Aion-3.0-Mini
Intelligence index
53.4
Coding index
81.6
GPQA
93.7%
Humanity's Last Exam
59.1%
Long Context Reasoning
85.3%
SciCode
63.1%
τ-Bench Banking
47.2%
Terminal-Bench
91.4%
Speed
66.7 tok/s
Latency
137.76s
Intelligence per $
2.7

Benchmark data by Artificial Analysis.

How Claude Fable 5.1 and Aion-3.0-Mini score

🤝 Neck and neck on these criteria (2.9 vs 2.8 / 5).
CriterionClaude Fable 5.1Aion-3.0-Mini
Cost-efficiency2.04.5
Context window5.03.5
Openness1.51.5
Self-hosting1.01.0
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

Claude Fable 5.1 Paid

Anthropic · Proprietary

Claude Fable 5.1 improves on Claude Fable 5 across the board, with the biggest gains in agentic coding, long-running agentic workflows, and knowledge work: long code refactors, front-end and visual...

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...

Frequently asked questions

Claude Fable 5.1 vs Aion-3.0-Mini — which is cheaper?

Aion-3.0-Mini is cheaper on output ($1.4/M vs $50/M).

Which has the larger context window?

Claude Fable 5.1 offers the larger context window (1M tokens).

Claude Fable 5.1 vs Aion-3.0-Mini — which should I pick in 2026?

Choose Aion-3.0-Mini for the lower output price ($1.4/M vs $50/M). Choose Claude Fable 5.1 if you need the larger 1M context window.

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