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Gemini 3.1 Pro Preview vs Qwen3.8-Flash-Next

SpecGemini 3.1 Pro PreviewQwen3.8-Flash-Next
Respan Index43.9 (#51)44.3 (#50)
Blended price per 1M$2.25-
Context window1.0M1M
Input / output per 1M$1 / $6-
Max output66K-
Inputtext, vision, audiotext, vision
Released2026-02-19-

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.

CategoryGemini 3.1 Pro PreviewQwen3.8-Flash-Next
Coding15.6 Gemini 3.1 Pro Preview25.7 Qwen3.8-Flash-Next
Agents53.6 Gemini 3.1 Pro Preview56.1 Qwen3.8-Flash-Next
Reasoning46.2 Gemini 3.1 Pro Preview43.3 Qwen3.8-Flash-Next
Knowledge & language72.5 Gemini 3.1 Pro Preview44.9 Qwen3.8-Flash-Next
Human preference52.2 Gemini 3.1 Pro Preview56.7 Qwen3.8-Flash-Next

How the Respan Index works

Benchmarks both report

Gemini 3.1 Pro Preview leads on 6 of the 10 benchmarks both report. Higher is better. Each score links to where it was published.

BenchmarkGemini 3.1 Pro PreviewQwen3.8-Flash-Next
LMArena Agent (LMArena)-0.0445-0.0402
LMArena WebDev (LMArena)14471628
GPQA Diamond94.3%91.7%
LiveBench Agentic Coding (LiveBench)44.1%61.6%
LiveBench Coding (LiveBench)76.5%72.6%
LiveBench Data Analysis (LiveBench)78.5%74.2%
LiveBench Instruction Following (LiveBench)79.1%77.1%
LiveBench Language (LiveBench)85.4%74.6%
LiveBench Mathematics (LiveBench)91%85.8%
LiveBench Reasoning (LiveBench)84%87.4%

FAQ

Is Gemini 3.1 Pro Preview better than Qwen3.8-Flash-Next?

Qwen3.8-Flash-Next scores 44.3 on the Respan Index (#50), ahead of Gemini 3.1 Pro Preview at 43.9 (#51). Gemini 3.1 Pro Preview leads on 6 of the 10 benchmarks both report.

Which has the larger context window?

Gemini 3.1 Pro Preview accepts 1.0M tokens and Qwen3.8-Flash-Next 1M tokens.

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