Gemini 2.5 Pro vs GLM-5

Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.

GLM-5 by Zhipu AI wins on 6 of 11 benchmarks against Gemini 2.5 Pro by Google, 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, Gemini 2.5 Pro scores 1465 on Chatbot Arena ELO compared to GLM-5's 1456.

Coding: In coding, GLM-5 scores 1235 on Design Arena ELO compared to Gemini 2.5 Pro's 1164, while GLM-5 scores 1260 on Website Arena ELO compared to Gemini 2.5 Pro's 1179.

Reasoning: In reasoning, Gemini 2.5 Pro scores 79.9% on GPQA Diamond compared to GLM-5's 78.6%, while GLM-5 scores 75.3% on τ²-Bench Airline compared to Gemini 2.5 Pro's 61.3%.

Context: In context, Gemini 2.5 Pro scores 1.0M on Context Length compared to GLM-5's 205K.

Pricing Comparison

Gemini 2.5 Pro costs $1.3/1M input tokens and $10.0/1M 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

Gemini 2.5 Pro generates output at 55 tok/s compared to GLM-5's 55 tok/s, and the time to first token is 500 ms for Gemini 2.5 Pro versus 1030 ms for GLM-5. Both models offer similar output speed.

Verdict

For developers prioritizing general intelligence, Gemini 2.5 Pro has the edge. For those who value affordability, GLM-5 is the stronger choice.

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Gemini 2.5 Pro vs GLM-5 — FAQ

Which is better, Gemini 2.5 Pro or GLM-5?

GLM-5 wins on more benchmarks overall (6 vs 4). However, the best choice depends on your specific needs — each model excels in different areas.

How does Gemini 2.5 Pro 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 Gemini 2.5 Pro cheaper than GLM-5?

Yes, GLM-5 is cheaper. Gemini 2.5 Pro costs $1.3/1M input and $10.0/1M output tokens. GLM-5 costs $0.60/1M input and $1.9/1M output tokens.

Which is faster, Gemini 2.5 Pro or GLM-5?

Both models generate output at the same speed of 55 tok/s.

What benchmarks does the Gemini 2.5 Pro 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.