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GLM-4.5 vs o3
Comprehensive side-by-side LLM comparison
o3 leads with 8.2% higher average benchmark score. o3 offers 37.9K more tokens in context window than GLM-4.5. GLM-4.5 is $8.00 cheaper per million tokens. o3 supports multimodal inputs. GLM-4.5 is available on 3 providers. Overall, o3 is the stronger choice for coding tasks.
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Zhipu AI
GLM-4.5 was developed by Zhipu AI as an advanced bilingual language model, designed to excel at both Chinese and English language tasks. Built to serve diverse applications across multiple languages, it represents Zhipu AI's commitment to multilingual AI capabilities.
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OpenAI
o3 represents the next generation in OpenAI's reasoning model series, developed to advance the capabilities of deliberate, step-by-step problem solving. Built to handle increasingly complex challenges across mathematics, science, and coding, it continues the evolution of reasoning-focused AI with improved analytical depth and accuracy.
3 months newer
o3
OpenAI
2025-04-16
GLM-4.5
Zhipu AI
2025-07-28
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Pricing Comparison
Cost per million tokens (USD)
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GLM-4.5
Input:$0.40
Output:$1.60($8.00 cheaper)
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o3
Input:$2.00
Output:$8.00
Performance Metrics
Context window and performance specifications
Average performance across 4 common benchmarks
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GLM-4.5
Average Score:65.2%
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o3
Average Score:73.4%(+8.2%)
Performance comparison across key benchmark categories
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GLM-4.5
Coding64.2%
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o3
Coding69.1%(+4.9%)
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Knowledge Cutoff
Training data recency comparison
o3
2024-05-31
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
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GLM-4.5
3 providers
DeepInfra
Novita
ZeroEval
Throughput: 85 tok/s
Latency: 0.7ms
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o3
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GLM-4.5
Avg Score:65.2%
Providers:3
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o3
Avg Score:73.4%(+8.2%)
Providers:1