Gemini 2.5 Pro vs Qwen3.5-Flash
| Spec | Gemini 2.5 Pro | Qwen3.5-Flash |
|---|---|---|
| Respan Index | 23.1 (#102) | 23.3 (#100) |
| Blended price per 1M | $3.44 | $0.16 |
| Context window | 1.0M | 1M |
| Input / output per 1M | $1.25 / $10 | $0.09 / $0.368 |
| Max output | 66K | - |
| Input | text, vision, audio | text, vision |
| Released | 2025-06-17 | 2026-02-23 |
Respan Index by category
Each category is scored 0 to 100, and how far ahead the winner is. Leads under a point are close to even.
| Category | Gemini 2.5 Pro | Qwen3.5-Flash |
|---|---|---|
| Coding | 3.2 Gemini 2.5 Pro | 8.9* Qwen3.5-Flash |
| Agents | 31.0 Gemini 2.5 Pro | 18.5 Qwen3.5-Flash |
| Reasoning | 24.5 Gemini 2.5 Pro | 29.7 Qwen3.5-Flash |
| Knowledge & language | 14.8* Gemini 2.5 Pro | 20.3 Qwen3.5-Flash |
| Human preference | 46.3 Gemini 2.5 Pro | 46.3 Qwen3.5-Flash |
* Estimated: no published scores in that category. How the Respan Index works
Benchmarks both report
Gemini 2.5 Pro leads on 6 of the 8 benchmarks both report. Higher is better. Each score links to where it was published.
FAQ
Is Gemini 2.5 Pro better than Qwen3.5-Flash?
Qwen3.5-Flash scores 23.3 on the Respan Index (#100), ahead of Gemini 2.5 Pro at 23.1 (#102). Gemini 2.5 Pro leads on 6 of the 8 benchmarks both report.
Which is cheaper, Gemini 2.5 Pro or Qwen3.5-Flash?
Gemini 2.5 Pro lists at $1.25 input and $10 output per 1M tokens; Qwen3.5-Flash at $0.09 and $0.368. Qwen3.5-Flash is 22x cheaper per token at list price.
Which has the larger context window?
Gemini 2.5 Pro accepts 1.0M tokens and Qwen3.5-Flash 1M tokens.