Gemini 3.1 Pro vs GLM-4.5: Specs & Benchmark Comparison

CharacteristicGemini 3.1 ProGLM-4.5
CompanyGoogleZhipu AI
Release DateFebruary 19, 2026July 27, 2025
Parameters355B
MultimodalYesNo
Context (input)1.0M131K
Context (output)66K98K
Input Price / 1M$2.50$0.60
Output Price / 1M$15.00$2.20
Average Score0.80.8
Benchmarks
GPQA0.90.8

Visual Benchmark Comparison

Gemini 3.1 Pro
GLM-4.5
GPQA0.9 vs 0.8
0.9
0.8

Verdict

Gemini 3.1 Pro leads in 2 out of 4 comparison categories.

Overall Performance

Both models show comparable average scores: Gemini 3.1 Pro — 0.8, GLM-4.5 — 0.8.

API Cost

GLM-4.5 is 6.3x cheaper: input $0.60/1M vs $2.50/1M tokens.

Context Window

Gemini 3.1 Pro supports a larger context: 1M vs 131K tokens.

Recency

Gemini 3.1 Pro is newer: released 2/19/2026 vs 7/27/2025.

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Related Comparisons

The Gemini 3.1 Pro and GLM-4.5 comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Gemini 3.1 Pro or GLM-4.5 page. See also the complete list of AI model comparisons.