Sonar Pro Search vs Aion 3.5 Mini compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.
Sonar Pro Search — full profile › · Aion 3.5 Mini — full profile ›
Prices & specs refreshed from live data · olud.ai
Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.
| Spec | Sonar Pro Search | Aion 3.5 Mini | Winner |
|---|---|---|---|
| Maker | Perplexity | AionLabs | – |
| Type | Proprietary | Proprietary | – |
| Context window | 200K tokens | 262K tokens | AIAion 3.5 Mini |
| Input price | $3/M | $0.7/M | AIAion 3.5 Mini |
| Output price | $15/M | $1.4/M | AIAion 3.5 Mini |
| Vision / multimodal | Yes | No | |
| Tool / function calling | No | Yes | AIAion 3.5 Mini |
| Self-hostable | No (API only) | No (API only) | – |
| License | Proprietary | Proprietary | – |
Aion 3.5 Mini is ~11× cheaper than Sonar Pro Search on output tokens ($1.4 vs $15 per M tokens).
| Capability | Sonar Pro Search | Aion 3.5 Mini |
|---|---|---|
| Open weights (downloadable) | ✗ | ✗ |
| Self-hostable | ✗ | ✗ |
| Runs fully offline | ✗ | ✗ |
| Vision / multimodal | ✓ | ✗ |
| Tool / function calling | ✗ | ✓ |
| 1M+ context window | ✗ | ✗ |
| Criterion | Sonar Pro Search | Aion 3.5 Mini |
|---|---|---|
| Cost-efficiency | 3.0 | 4.5 |
| Context window | 4.0 | 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.
Exclusively available on the OpenRouter API, Sonar Pro's new Pro Search mode is Perplexity's most advanced agentic search system. It is designed for deeper reasoning and analysis. Pricing is based...
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...
Aion 3.5 Mini is cheaper on output ($1.4/M vs $15/M).
Aion 3.5 Mini offers the larger context window (262K tokens).
Choose Aion 3.5 Mini for the lower output price ($1.4/M vs $15/M). It also gives you the larger 262K context window.
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