Gemini 3.1 ProvsQwen3.5

Gemini 3.1 Pro
Qwen3.5
Specifications
Parameters
397B
Context window
1M
Benchmarks
Nonsense detection
BullshitBench v2
37%
Prompt injection robustness
Gray Swan IPI · k = 1
14.2%
Prompt injection robustness
Gray Swan IPI · k = 10
45.7%
Prompt injection robustness
Gray Swan IPI · k = 15
49.2%
Agentic coding
SWE-Bench Pro
54.2%
Coding
SWE-Bench Verified
80.6%Best
76.4%
Multilingual coding
SWE-Bench Multilingual
69.3%
Agentic coding
DeepSWE 1.1
12%
ML engineering
MLE-Bench
42.6%
Next.js coding
Next.js Evals
75%
Agentic terminal coding
Terminal-Bench 2.1
70.3%
Agentic terminal coding
Terminal-Bench 2.0
68.5%Best
52.5%
Multi-step tool use
MCP Atlas
78.2%
General tool use
Toolathlon
48.8%
Web browsing
BrowseComp
85.9%Best
69%
Multidisciplinary reasoning
Humanity's Last Exam · no tools
44.4%Best
28.7%
Multidisciplinary reasoning
Humanity's Last Exam · with tools
51.4%
Abstract reasoning
ARC-AGI-2
77.1%
Advanced math
FrontierMath · Tier 1–3
36.9%
Advanced math
FrontierMath · Tier 4
16.7%
Science
GPQA Diamond
94.3%Best
88.4%
Agentic computer use
OSWorld-Verified
76.2%Best
62.2%
Agentic financial analysis
Finance Agent v2
43%
Knowledge work
GDPval-AA
1314
Knowledge work
GDPval-AA v2
965
Knowledge work
GDPval (win/tie rate)
67.3%
Chart reasoning
CharXiv Reasoning
83.3%Best
80.8%
Multimodal reasoning
MMMU-Pro
80.5%Best
79%
Multimodal
MMMU
85%
Spatial reasoning
Blueprint-Bench 2
26.5%
Long context
MRCR v2 (8-needle) · 128k average
84.9%
Long context
MRCR v2 (8-needle) · 1M pointwise
26.3%
Community preference
Arena Elo (Text)
1485
Community preference (code)
Arena Elo (Code)
1445
Overview
CompanyGoogleQwen
Release dateFeb 19 2026Feb 16 2026
AccessProprietaryOpen Weight

Which is better: Gemini 3.1 Pro or Qwen3.5?

Gemini 3.1 Pro leads Qwen3.5 on 8 of the 8 benchmarks they both report. Qwen3.5 shipped 3 days before Gemini 3.1 Pro, so benchmark comparisons should account for the intervening progress.

Gemini 3.1 Pro is proprietary, while Qwen3.5 is open weight.

On SWE-Bench Verified, Gemini 3.1 Pro leads at 80.6% vs Qwen3.5 at 76.4%. On Terminal-Bench 2.0, Gemini 3.1 Pro leads at 68.5% vs Qwen3.5 at 52.5%. On BrowseComp, Gemini 3.1 Pro leads at 85.9% vs Qwen3.5 at 69%. On Humanity's Last Exam · no tools, Gemini 3.1 Pro leads at 44.4% vs Qwen3.5 at 28.7%. On GPQA Diamond, Gemini 3.1 Pro leads at 94.3% vs Qwen3.5 at 88.4%. On OSWorld-Verified, Gemini 3.1 Pro leads at 76.2% vs Qwen3.5 at 62.2%. On CharXiv Reasoning, Gemini 3.1 Pro leads at 83.3% vs Qwen3.5 at 80.8%. On MMMU-Pro, Gemini 3.1 Pro leads at 80.5% vs Qwen3.5 at 79%.

Frequently asked questions

Gemini 3.1 Pro was released by Google on Feb 19 2026.

Qwen3.5 was released by Qwen on Feb 16 2026.

Gemini 3.1 Pro leads on SWE-Bench Verified — Gemini 3.1 Pro 80.6% vs Qwen3.5 76.4%.

Gemini 3.1 Pro leads on Humanity's Last Exam · no tools — Gemini 3.1 Pro 44.4% vs Qwen3.5 28.7%.

Gemini 3.1 Pro is a proprietary model released by Google. Qwen3.5 is an open weight model released by Qwen.

Other comparisons