GLM-5 vs o3
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
GLM-5 by Zhipu AI wins on 8 of 10 benchmarks against o3 by OpenAI, which leads on 2. This head-to-head comparison covers coding, math, reasoning, speed, and pricing metrics from our benchmark data.
Category-by-Category Breakdown
General Intelligence: In general intelligence, GLM-5 scores 1456 on Chatbot Arena ELO compared to o3's 1380.
Coding: In coding, GLM-5 scores 1235 on Design Arena ELO compared to o3's 1074, while GLM-5 scores 1260 on Website Arena ELO compared to o3's 1048.
Reasoning: In reasoning, o3 scores 83.3% on GPQA Diamond compared to GLM-5's 78.6%.
Context: In context, GLM-5 scores 205K on Context Length compared to o3's 200K.
Pricing Comparison
GLM-5 costs $0.60/1M input tokens and $1.9/1M output tokens, while o3 costs $2.0/1M input and $8.0/1M output. GLM-5 is the more affordable option for API usage.
Speed Comparison
GLM-5 generates output at 55 tok/s compared to o3's 40 tok/s, and the time to first token is 1030 ms for GLM-5 versus 800 ms for o3. GLM-5 delivers faster throughput.
Verdict
GLM-5 leads across the board in general intelligence, affordability, speed, making it the stronger overall choice in this comparison.
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GLM-5 vs o3 — FAQ
Which is better, GLM-5 or o3?
GLM-5 wins on more benchmarks overall (8 vs 2). However, the best choice depends on your specific needs — each model excels in different areas.
How does GLM-5 compare to o3 for coding?
SWE-bench Verified data is not available for both models. Check the detailed comparison charts above for other coding-related metrics.
Is GLM-5 cheaper than o3?
Yes, GLM-5 is cheaper. GLM-5 costs $0.60/1M input and $1.9/1M output tokens. o3 costs $2.0/1M input and $8.0/1M output tokens.
Which is faster, GLM-5 or o3?
GLM-5 is faster, generating output at 55 tok/s compared to 40 tok/s. Faster output speed means shorter wait times for API responses.
What benchmarks does the GLM-5 vs o3 comparison cover?
This comparison covers 10 benchmarks including Chatbot Arena ELO, GPQA Diamond, Output Speed, Time to First Token, Input Cost, Output Cost, Context Length, Cached Input Cost, and more. Metrics span general intelligence, coding, math, reasoning, speed, and cost categories.