AI Models · Paid vs Paid

GPT Chat Latest Paid vs AIAion 3.5 Mini Paid

GPT Chat Latest vs Aion 3.5 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.

GPT Chat LatestPaidOpenAI
$5 /M input
$30 /M outputManaged API (no infra to run)
TypeProprietary
Context window400K tokens
MultimodalYes
Self-hostNo
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 Aion 3.5 Mini for the lower output price ($1.4/M vs $30/M). Choose GPT Chat Latest if you need the larger 400K context window.

GPT Chat Latest vs Aion 3.5 Mini specs

SpecGPT Chat LatestAion 3.5 MiniWinner
MakerOpenAIAionLabs–
TypeProprietaryProprietary–
Context window400K tokens262K tokensGPT Chat Latest
Input price$5/M$0.7/MAIAion 3.5 Mini
Output price$30/M$1.4/MAIAion 3.5 Mini
Vision / multimodalYesNoGPT Chat Latest
Tool / function callingYesYes= Tie
Self-hostableNo (API only)No (API only)–
LicenseProprietaryProprietary–

Price gap & when to choose each

21×cheaper per output token

Aion 3.5 Mini is ~21× cheaper than GPT Chat Latest on output tokens ($1.4 vs $30 per M tokens).

Choose GPT Chat Latest if…
  • You want frontier performance through a managed API
  • You need the longer 400K context window
  • You value reliability & ecosystem
  • You don't want to manage infrastructure
AIChoose Aion 3.5 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

CapabilityGPT Chat LatestAion 3.5 Mini
Open weights (downloadable)✗✗
Self-hostable✗✗
Runs fully offline✗✗
Vision / multimodal✓✗
Tool / function calling✓✓
1M+ context window✗✗

How GPT Chat Latest and Aion 3.5 Mini score

🤝 Neck and neck on these criteria (3.0 vs 2.9 / 5).
CriterionGPT Chat LatestAion 3.5 Mini
Cost-efficiency3.04.5
Context window4.54.0
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

GPT Chat Latest Paid

OpenAI · Proprietary

GPT Chat Latest points to OpenAI's stable API alias `chat-latest` that always resolves to the latest Instant chat model used in ChatGPT. As OpenAI rolls out new Instant model updates...

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...

Frequently asked questions

GPT Chat Latest vs Aion 3.5 Mini — which is cheaper?

Aion 3.5 Mini is cheaper on output ($1.4/M vs $30/M).

Which has the larger context window?

GPT Chat Latest offers the larger context window (400K tokens).

GPT Chat Latest vs Aion 3.5 Mini — which should I pick in 2026?

Choose Aion 3.5 Mini for the lower output price ($1.4/M vs $30/M). Choose GPT Chat Latest if you need the larger 400K context window.

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