Compare/GLM-5.2 (max) vs o3-mini

GLM-5.2 (max)vso3-mini

Side-by-side comparison of pricing, 12 benchmarks, and generation speed.

Z AI

GLM-5.2 (max)

Input
$1.4/M
Output
$4.4/M
Speed
112 tok/s
TTFT
2.13s
OpenAI

o3-mini

Input
$1.1/M
Output
$4.4/M
Speed
202 tok/s
TTFT
6.60s

Winner by Category

Cheaper
o3-mini
Faster (tok/s)
o3-mini
Lower Latency
GLM-5.2 (max)
Benchmarks (7-3)
GLM-5.2 (max)

Pricing Comparison

MetricGLM-5.2 (max)o3-mini
Input ($/M tokens)$1.4$1.1
Output ($/M tokens)$4.4$4.4
Cost for 1M input + 100K output tokens:
GLM-5.2 (max)$1.84
o3-mini$1.54

Speed Comparison

Output Speed (tokens/s) — higher is better
GLM-5.2 (max)
112 tok/s
o3-mini
202 tok/s
Time to First Token (seconds) — lower is better
GLM-5.2 (max)
2.13s
o3-mini
6.60s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
50.719.0
Coding Index
50.717.9
Math Index
——
GPQA Diamond
89.5%74.8%
MMLU-Pro
—79.1%
LiveCodeBench
—71.7%
AIME 2025
——
MATH-500
—97.3%
Humanity's Last Exam
40.1%8.7%
SciCode
50.5%39.9%
IFBench
73.3%—
TerminalBench
50.8%6.8%
GLM-5.2 (max)7 wins
3 winso3-mini

Frequently Asked Questions

Which is cheaper, GLM-5.2 (max) or o3-mini?

o3-mini is cheaper overall. Its blended price (3:1 input/output ratio) is $1.93/M tokens vs $2.15/M for GLM-5.2 (max).

Which model performs better on benchmarks?

GLM-5.2 (max) wins 7 out of 12 benchmarks compared to 3 for o3-mini. See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

o3-mini generates tokens faster at 202 tok/s vs 112 tok/s. GLM-5.2 (max) also has lower time-to-first-token (2.13s vs 6.60s).

When should I use GLM-5.2 (max) vs o3-mini?

Choose based on your priorities: o3-mini for lower cost, GLM-5.2 (max) for stronger benchmark performance, and o3-mini for faster generation. For latency-sensitive apps, check the TTFT comparison above.

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