Aion-3.0 vs KAT-Coder-Pro V2.5 compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.
Aion-3.0 — full profile › · KAT-Coder-Pro V2.5 — full profile ›
Prices & specs refreshed from live data · olud.ai
Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.
| Spec | Aion-3.0 | KAT-Coder-Pro V2.5 | Winner |
|---|---|---|---|
| Maker | AionLabs | Kwaipilot | – |
| Type | Proprietary | Proprietary | – |
| Context window | 131K tokens | 262K tokens | KWKAT-Coder-Pro V2.5 |
| Input price | $3/M | $0.74/M | KWKAT-Coder-Pro V2.5 |
| Output price | $6/M | $2.96/M | KWKAT-Coder-Pro V2.5 |
| Vision / multimodal | No | No | – |
| Tool / function calling | Yes | Yes | = Tie |
| Self-hostable | No (API only) | No (API only) | – |
| License | Proprietary | Proprietary | – |
KAT-Coder-Pro V2.5 is ~2.0× cheaper than Aion-3.0 on output tokens ($2.96 vs $6 per M tokens).
| Capability | Aion-3.0 | KAT-Coder-Pro V2.5 |
|---|---|---|
| Open weights (downloadable) | ✗ | ✗ |
| Self-hostable | ✗ | ✗ |
| Runs fully offline | ✗ | ✗ |
| Vision / multimodal | ✗ | ✗ |
| Tool / function calling | ✓ | ✓ |
| 1M+ context window | ✗ | ✗ |
| Criterion | Aion-3.0 | KAT-Coder-Pro V2.5 |
|---|---|---|
| Cost-efficiency | 4.0 | 4.5 |
| Context window | 3.5 | 4.0 |
| 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.
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...
KAT-Coder-Pro V2.5 is a flagship-level Agentic Coding model that can directly hand over an entire issue or an entire business workflow to it, allowing it to autonomously locate and make...
KAT-Coder-Pro V2.5 is cheaper on output ($2.96/M vs $6/M).
KAT-Coder-Pro V2.5 offers the larger context window (262K tokens).
Choose KAT-Coder-Pro V2.5 for the lower output price ($2.96/M vs $6/M). It also gives you the larger 262K context window.
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