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Gemini 3.1 Pro vs GLM 4.5 Air

At a glance
GoogleGemini 3.1 Pro

Google's frontier model with a large leap in core reasoning.

861.0M ctx$2.00/$12.00 per M#10/92
Zhipu AIGLM 4.5 Air

Lightweight GLM 4.5 variant for fast, cost-efficient inference.

131K ctx$0.13/$0.85 per M
AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
GoogleGemini 3.1 Pro
Reasoning
Sources:Epoch ECI·Epoch AI·Provider·OpenRouter· as of 2026-07-10
Capability
CapabilityECI86.4
Reasoning & Knowledge
Graduate Science94.1%Expert-Level46.4%Factual Recall77.3%
Math
Competition Math95.6%Research Math36.9%
Coding
Real-World Coding80.6%
Agentic
Terminal Tasks80.2%Novel Reasoning77.1%Task Horizon6.4h
Zhipu AIGLM 4.5 Air
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:Epoch AI·OpenRouter· as of 2026-07-10
Cheaper
Capability
Capability—
Reasoning & Knowledge
Graduate Science—Expert-Level8.1%Factual Recall—
Math
Competition Math—Research Math—
Coding
Real-World Coding—
Agentic
Terminal Tasks—Novel Reasoning—Task Horizon—
Specs
GoogleGemini 3.1 Pro
1.0M
Context
66K
Max output
Feb 2026
Released
Zhipu AIGLM 4.5 Air
131K
Context
98K
Max output
Jul 2025
Released
Capabilities
GoogleGemini 3.1 Pro
Vision
Audio
Reasoning
Zhipu AIGLM 4.5 Air
Vision
Audio
Reasoning
Pricing
GoogleGemini 3.1 Pro
Live pricing, shown before you run
Input$2.00/M tokens
Output$12.00/M tokens
Reasoning$12.00/M tokens
Cache read$0.20/M tokens
Cache write$0.38/M tokens
Image input$2.00/M tokens
Audio input$2.00/M tokens
Web search$0.01/search
Zhipu AIGLM 4.5 Air
Live pricing, shown before you run
Input$0.13/M tokens
Output$0.85/M tokens
Cache read$0.02/M tokens
Chat with Gemini 3.1 ProGo to model
Chat with GLM 4.5 AirGo to model
Frequently Asked Questions: Gemini 3.1 Pro vs GLM 4.5 Air▼

Which is better, Gemini 3.1 Pro or GLM 4.5 Air?

▼

Both Gemini 3.1 Pro and GLM 4.5 Air are capable AI models. The best choice depends on your specific use case: consider pricing, context window, speed, and which capabilities (vision, reasoning, audio) you need.

Which is cheaper, Gemini 3.1 Pro or GLM 4.5 Air?

▼

GLM 4.5 Air has a lower blended cost. Gemini 3.1 Pro: $2.00 input / $12.00 output. GLM 4.5 Air: $0.13 input / $0.85 output.

Which has a larger context window, Gemini 3.1 Pro or GLM 4.5 Air?

▼

Gemini 3.1 Pro has a larger context window: Gemini 3.1 Pro supports 1M tokens vs GLM 4.5 Air at 131K tokens.

Do both Gemini 3.1 Pro and GLM 4.5 Air support vision?

▼

Gemini 3.1 Pro supports vision/image input, but GLM 4.5 Air does not.

What are the key differences between Gemini 3.1 Pro and GLM 4.5 Air?

▼

Key differences: GLM 4.5 Air is significantly cheaper; only Gemini 3.1 Pro supports vision input. Compare full specs on this page.

Which model should I choose for my use case?

▼

If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both Gemini 3.1 Pro and GLM 4.5 Air for free on idapt.app to see which performs better for your specific needs.

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