AIAion-3.0 Paid vs 
GPT-3.5 Turbo 16k Paid
Aion-3.0 vs GPT-3.5 Turbo 16k compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.
Aion-3.0 — full profile › · GPT-3.5 Turbo 16k — full profile ›
Prices & specs refreshed from live data · olud.ai
Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.
$6 /M outputManaged API (no infra to run)
$4 /M outputManaged API (no infra to run)
Aion-3.0 vs GPT-3.5 Turbo 16k specs
| Spec | Aion-3.0 | GPT-3.5 Turbo 16k | Winner |
|---|---|---|---|
| Maker | AionLabs | OpenAI | – |
| Type | Proprietary | Proprietary | – |
| Context window | 131K tokens | 16K tokens | AIAion-3.0 |
| Input price | $3/M | $3/M | = Tie |
| Output price | $6/M | $4/M | |
| Vision / multimodal | No | No | – |
| Tool / function calling | Yes | Yes | = Tie |
| Self-hostable | No (API only) | No (API only) | – |
| License | Proprietary | Proprietary | – |
Price gap & when to choose each
GPT-3.5 Turbo 16k is ~1.5× cheaper than Aion-3.0 on output tokens ($4 vs $6 per M tokens).
- You want frontier performance through a managed API
- You need the longer 131K context window
- You value reliability & ecosystem
- You don't want to manage infrastructure
- 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
| Capability | Aion-3.0 | GPT-3.5 Turbo 16k |
|---|---|---|
| Open weights (downloadable) | ✗ | ✗ |
| Self-hostable | ✗ | ✗ |
| Runs fully offline | ✗ | ✗ |
| Vision / multimodal | ✗ | ✗ |
| Tool / function calling | ✓ | ✓ |
| 1M+ context window | ✗ | ✗ |
How Aion-3.0 and GPT-3.5 Turbo 16k score
| Criterion | Aion-3.0 | GPT-3.5 Turbo 16k |
|---|---|---|
| Cost-efficiency | 4.0 | 4.0 |
| Context window | 3.5 | 2.0 |
| Openness | 1.5 | 1.5 |
| Self-hosting | 1.0 | 1.0 |
| Multimodality | 3.5 | 3.5 |
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
Aion-3.0 Paid
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...
GPT-3.5 Turbo 16k Paid
This model offers four times the context length of gpt-3.5-turbo, allowing it to support approximately 20 pages of text in a single request at a higher cost. Training data: up...
Frequently asked questions
Aion-3.0 vs GPT-3.5 Turbo 16k — which is cheaper?
GPT-3.5 Turbo 16k is cheaper on output ($4/M vs $6/M).
Which has the larger context window?
Aion-3.0 offers the larger context window (131K tokens).
Aion-3.0 vs GPT-3.5 Turbo 16k — which should I pick in 2026?
Choose GPT-3.5 Turbo 16k for the lower output price ($4/M vs $6/M). Choose Aion-3.0 if you need the larger 131K context window.
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