AIAion-3.0 Paid vs 
Seed 1.6 Flash Paid
Aion-3.0 vs Seed 1.6 Flash compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.
Aion-3.0 — full profile › · Seed 1.6 Flash — 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)
$0.3 /M outputManaged API (no infra to run)
Aion-3.0 vs Seed 1.6 Flash specs
| Spec | Aion-3.0 | Seed 1.6 Flash | Winner |
|---|---|---|---|
| Maker | AionLabs | ByteDance Seed | – |
| Type | Proprietary | Proprietary | – |
| Context window | 131K tokens | 262K tokens | |
| Input price | $3/M | $0.08/M | |
| Output price | $6/M | $0.3/M | |
| Vision / multimodal | No | Yes | |
| Tool / function calling | Yes | Yes | = Tie |
| Self-hostable | No (API only) | No (API only) | – |
| License | Proprietary | Proprietary | – |
Price gap & when to choose each
Seed 1.6 Flash is ~20× cheaper than Aion-3.0 on output tokens ($0.3 vs $6 per M tokens).
- You want frontier performance through a managed API
- You value reliability & ecosystem
- You don't want to manage infrastructure
- You want frontier performance through a managed API
- You need the longer 262K context window
- You want the lower output price
- You value reliability & ecosystem
- You don't want to manage infrastructure
Feature comparison
| Capability | Aion-3.0 | Seed 1.6 Flash |
|---|---|---|
| Open weights (downloadable) | ✗ | ✗ |
| Self-hostable | ✗ | ✗ |
| Runs fully offline | ✗ | ✗ |
| Vision / multimodal | ✗ | ✓ |
| Tool / function calling | ✓ | ✓ |
| 1M+ context window | ✗ | ✗ |
How Aion-3.0 and Seed 1.6 Flash score
| Criterion | Aion-3.0 | Seed 1.6 Flash |
|---|---|---|
| Cost-efficiency | 4.0 | 5.0 |
| Context window | 3.5 | 4.0 |
| Openness | 1.5 | 1.5 |
| Self-hosting | 1.0 | 1.0 |
| Multimodality | 3.5 | 5.0 |
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...
Seed 1.6 Flash Paid
Seed 1.6 Flash is an ultra-fast multimodal deep thinking model by ByteDance Seed, supporting both text and visual understanding. It features a 256k context window and can generate outputs of...
Frequently asked questions
Aion-3.0 vs Seed 1.6 Flash — which is cheaper?
Seed 1.6 Flash is cheaper on output ($0.3/M vs $6/M).
Which has the larger context window?
Seed 1.6 Flash offers the larger context window (262K tokens).
Aion-3.0 vs Seed 1.6 Flash — which should I pick in 2026?
Choose Seed 1.6 Flash for the lower output price ($0.3/M vs $6/M). It also gives you the larger 262K 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 →