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Gemini 3.1 Pro vs GLM-4.5 Air
Comprehensive side-by-side LLM comparison
Gemini 3.1 Pro offers 982.0K more tokens in context window than GLM-4.5 Air. GLM-4.5 Air is $13.90 cheaper per million tokens. Gemini 3.1 Pro supports multimodal inputs. Both models have their strengths depending on your specific coding needs.
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Google DeepMind
Gemini 3.1 Pro is a multimodal language model from Google DeepMind, released in preview in February 2026 as a point-version upgrade to Gemini 3 Pro focused on improving reasoning depth, factual grounding, and coding and agentic task performance. The model accepts text, images, video, audio, and PDFs as inputs across a 1M token context window, extending the multimodal breadth of the Gemini 3 series with a companion endpoint specifically optimized for custom tool use in agentic pipelines. Google describes it as built to refine the reliability and performance of the Gemini 3 Pro series, reflecting an incremental engineering iteration rather than an architectural overhaul.
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Zhipu AI
GLM-4.5 Air is a lightweight variant from Zhipu AI's GLM-4 model family, designed for efficient deployments requiring lower inference cost while maintaining strong language understanding and generation capabilities. It targets cost-sensitive production workloads, API integrations, and applications where the full GLM-4.x series capacity exceeds requirements.
6 months newer
GLM-4.5 Air
Zhipu AI
2025-07-28
Gemini 3.1 Pro
Google DeepMind
2026-02-19
Pricing Comparison
Cost per million tokens (USD)
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Gemini 3.1 Pro
Input:$2.00
Output:$12.00
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GLM-4.5 Air
Input:$0.05
Output:$0.05($13.90 cheaper)
Performance Metrics
Context window and performance specifications
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Knowledge Cutoff
Training data recency comparison
Gemini 3.1 Pro
2025-01
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
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Gemini 3.1 Pro
1 providers
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GLM-4.5 Air
1 providers
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Gemini 3.1 Pro
Avg Score:0.0%
Providers:1
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GLM-4.5 Air
Avg Score:0.0%
Providers:1