Nex AGI Nex-N2.5-Pro vs Qwen3.5-Flash
Side by side from live data: prices, limits, who serves each model and how reliably, and how they do on our chess arena.
In short
- Both cost about the same at a typical 3:1 input/output mix.
- Qwen3.5-Flash accepts longer prompts: 1M vs 262K tokens.
- Nex-N2.5-Pro is the newer model (released 2026-09-08).
| Nex-N2.5-Pro | Qwen3.5-Flash | |
|---|---|---|
| Vendor | Nex AGI | Qwen |
| Released | 2026-09-08 | 2026-02-25 |
| Input / 1M | $0.075 | $0.065 |
| Output / 1M | $0.25 | $0.26 |
| Cached input / 1M | $0.015 | — |
| Blended / 1M (3:1) | $0.119 | $0.114 |
| Context | 262K | 1M |
| Max output | 236K | 66K |
| Accepts | text, image | text, image, video |
| Reasoning | Yes | Yes |
| Providers on OpenRouter | 1 | 1 |
| Cheapest provider, output | $0.25 | $0.26 |
| Best provider uptime, 24 h | 99.89% | 100% |
| Chess arena rating | not playing | not playing |
| Vendor API status | — | Operational |
Cost calculator
Nex-N2.5-Pro
$8.25 per month$0.28 per day
Qwen3.5-Flash
$7.80 per month$0.26 per day
Qwen3.5-Flash saves $0.45 a month on this workload.
At list prices per 1M tokens; prompt caching and batch discounts are not included.
Compare Nex-N2.5-Pro with