AI Models · Paid vs Paid

Claude Sonnet 5 Paid vs AIAion-3.0 Paid

Claude Sonnet 5 vs Aion-3.0 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 Sonnet 5PaidAnthropic
$2 /M input
$10 /M outputManaged API (no infra to run)
TypeProprietary
Context window1M tokens
MultimodalYes
Self-hostNo
AIAion-3.0PaidAionLabs
$3 /M input
$6 /M outputManaged API (no infra to run)
TypeProprietary
Context window131K tokens
MultimodalNo
Self-hostNo
Choose Aion-3.0 for the lower output price ($6/M vs $10/M). Choose Claude Sonnet 5 if you need the larger 1M context window.

Claude Sonnet 5 vs Aion-3.0 specs

SpecClaude Sonnet 5Aion-3.0Winner
MakerAnthropicAionLabs
TypeProprietaryProprietary
Context window1M tokens131K tokensClaude Sonnet 5
Input price$2/M$3/MClaude Sonnet 5
Output price$10/M$6/MAIAion-3.0
Vision / multimodalYesNoClaude Sonnet 5
Tool / function callingYesYes= Tie
Self-hostableNo (API only)No (API only)
LicenseProprietaryProprietary

Price gap & when to choose each

1.7×cheaper per output token

Aion-3.0 is ~1.7× cheaper than Claude Sonnet 5 on output tokens ($6 vs $10 per M tokens).

Choose Claude Sonnet 5 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 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 Sonnet 5Aion-3.0
Open weights (downloadable)
Self-hostable
Runs fully offline
Vision / multimodal
Tool / function calling
1M+ context window

Benchmarks: Claude Sonnet 5 vs Aion-3.0

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

Claude Sonnet 5
Aion-3.0
Intelligence index
38.4
Coding index
71.5
GPQA
91.1%
Humanity's Last Exam
41.3%
Long Context Reasoning
82%
SciCode
54.3%
τ-Bench Banking
37.3%
Terminal-Bench
80.5%
Speed
83.2 tok/s
Latency
114.22s
Intelligence per $
9.6

Benchmark data by Artificial Analysis.

How Claude Sonnet 5 and Aion-3.0 score

🏆 Best value & openness: Claude Sonnet 5 (3.2 vs 2.7 / 5)
CriterionClaude Sonnet 5Aion-3.0
Cost-efficiency3.54.0
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 Sonnet 5 Paid

Anthropic · Proprietary

Sonnet 5 is Anthropic's most capable Sonnet-class model, with frontier performance across coding, agents, and professional work. It supports adaptive thinking with selectable reasoning effort levels (low, medium, high, max,...

Aion-3.0 Paid

AionLabs · Proprietary

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

Other models in these families

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

Other variants tracked
Claude Sonnet 5 (batch)Claude Sonnet 4.6Claude Sonnet 4.6 (batch)Claude Sonnet 4.5Claude Sonnet 4.5 (batch)Claude Sonnet 4

Frequently asked questions

Claude Sonnet 5 vs Aion-3.0 — which is cheaper?

Aion-3.0 is cheaper on output ($6/M vs $10/M).

Which has the larger context window?

Claude Sonnet 5 offers the larger context window (1M tokens).

Claude Sonnet 5 vs Aion-3.0 — which should I pick in 2026?

Choose Aion-3.0 for the lower output price ($6/M vs $10/M). Choose Claude Sonnet 5 if you need the larger 1M context window.

People also compare

Explore more open-source AI

Browse the full open-source model leaderboard, thousands of tools and live benchmarks — all in one place.

Open the leaderboard →