Claude Opus 4.5 vs GLM-5
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
GLM-5 by Zhipu AI wins on 7 of 11 benchmarks against Claude Opus 4.5 by Anthropic, which leads on 4. 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, Claude Opus 4.5 scores 1468 on Chatbot Arena ELO compared to GLM-5's 1456.
Coding: In coding, Claude Opus 4.5 scores 1242 on Design Arena ELO compared to GLM-5's 1235, while GLM-5 scores 1260 on Website Arena ELO compared to Claude Opus 4.5's 1259.
Reasoning: In reasoning, Claude Opus 4.5 scores 86.5% on GPQA Diamond compared to GLM-5's 78.6%, while Claude Opus 4.5 scores 77.0% on τ²-Bench Airline compared to GLM-5's 75.3%.
Context: In context, GLM-5 scores 205K on Context Length compared to Claude Opus 4.5's 200K.
Pricing Comparison
Claude Opus 4.5 costs $5.0/1M input tokens and $25.0/1M output tokens, while GLM-5 costs $0.60/1M input and $1.9/1M output. GLM-5 is the more affordable option for API usage.
Speed Comparison
Claude Opus 4.5 generates output at 50 tok/s compared to GLM-5's 55 tok/s, and the time to first token is 1700 ms for Claude Opus 4.5 versus 1030 ms for GLM-5. GLM-5 delivers faster throughput.
Verdict
For developers prioritizing general intelligence, Claude Opus 4.5 has the edge. For those who value affordability and speed, GLM-5 is the stronger choice.
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Claude Opus 4.5 vs GLM-5 — FAQ
Which is better, Claude Opus 4.5 or GLM-5?
GLM-5 wins on more benchmarks overall (7 vs 4). However, the best choice depends on your specific needs — each model excels in different areas.
How does Claude Opus 4.5 compare to GLM-5 for coding?
SWE-bench Verified data is not available for both models. Check the detailed comparison charts above for other coding-related metrics.
Is Claude Opus 4.5 cheaper than GLM-5?
Yes, GLM-5 is cheaper. Claude Opus 4.5 costs $5.0/1M input and $25.0/1M output tokens. GLM-5 costs $0.60/1M input and $1.9/1M output tokens.
Which is faster, Claude Opus 4.5 or GLM-5?
GLM-5 is faster, generating output at 55 tok/s compared to 50 tok/s. Faster output speed means shorter wait times for API responses.
What benchmarks does the Claude Opus 4.5 vs GLM-5 comparison cover?
This comparison covers 11 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.