AI Models · Paid vs Paid

FIEmber-1 Paid vs AIAion-2.0 Paid

Ember-1 vs Aion-2.0 compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.

Ember-1 — full profile ›  ·  Aion-2.0 — full profile ›

Prices & specs refreshed from live data · olud.ai

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

FIEmber-1PaidFireworks
$3 /M input
$15 /M outputManaged API (no infra to run)
TypeProprietary
Context window1M tokens
MultimodalYes
Self-hostNo
AIAion-2.0PaidAionLabs
$0.8 /M input
$1.6 /M outputManaged API (no infra to run)
TypeProprietary
Context window131K tokens
MultimodalNo
Self-hostNo
Choose Aion-2.0 for the lower output price ($1.6/M vs $15/M). Choose Ember-1 if you need the larger 1M context window.

Ember-1 vs Aion-2.0 specs

SpecEmber-1Aion-2.0Winner
MakerFireworksAionLabs–
TypeProprietaryProprietary–
Context window1M tokens131K tokensFIEmber-1
Input price$3/M$0.8/MAIAion-2.0
Output price$15/M$1.6/MAIAion-2.0
Vision / multimodalYesNoFIEmber-1
Tool / function callingYesYes= Tie
Self-hostableNo (API only)No (API only)–
LicenseProprietaryProprietary–

Price gap & when to choose each

9.4×cheaper per output token

Aion-2.0 is ~9.4× cheaper than Ember-1 on output tokens ($1.6 vs $15 per M tokens).

FIChoose Ember-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-2.0 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

CapabilityEmber-1Aion-2.0
Open weights (downloadable)✗✗
Self-hostable✗✗
Runs fully offline✗✗
Vision / multimodal✓✗
Tool / function calling✓✓
1M+ context window✓✗

How Ember-1 and Aion-2.0 score

🏆 Best value & openness: Ember-1 (3.1 vs 2.8 / 5)
CriterionEmber-1Aion-2.0
Cost-efficiency3.04.5
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

Ember-1 Paid

Fireworks · Proprietary

Ember-1 is a specialized reasoning model from Fireworks Research, built on [Kimi K3](https://openrouter.ai/moonshotai/kimi-k3). It is designed to make every token go further: it produces shorter reasoning traces, using roughly 40%...

Aion-2.0 Paid

AionLabs · Proprietary

Aion-2.0 is a variant of DeepSeek V3.2 optimized for immersive roleplaying and storytelling. It is particularly strong at introducing tension, crises, and conflict into stories, making narratives feel more engaging....

Frequently asked questions

Ember-1 vs Aion-2.0 — which is cheaper?

Aion-2.0 is cheaper on output ($1.6/M vs $15/M).

Which has the larger context window?

Ember-1 offers the larger context window (1M tokens).

Ember-1 vs Aion-2.0 — which should I pick in 2026?

Choose Aion-2.0 for the lower output price ($1.6/M vs $15/M). Choose Ember-1 if you need the larger 1M context window.

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