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GLM-5.2 vs o3

o3 leads in 4 of 8 categories

Arena ELO

o3

Cheaper

GLM-5.2

Faster

o3

Detailed Comparison

CategoryGLM-5.2o3
ProviderZ.ai OpenAI
Context Window128K 200K WIN
Input Price ($/1M)$3 WIN$10
Output Price ($/1M)$80 $40 WIN
Arena ELON/A 1422 WIN
CodingN/A unknown
ReasoningN/A unknown
Speed (tokens/sec)N/A ~30 t/s WIN
Open SourceYes No

Frequently Asked Questions

Which is cheaper, GLM-5.2 or o3?

o3 is approximately 40% cheaper than GLM-5.2 per million tokens.

Which is better for coding, GLM-5.2 or o3?

GLM-5.2 scores N/A on coding benchmarks, while o3 scores unknown.

Which has a larger context window?

GLM-5.2 supports 128K context, while o3 supports 200K.

Is GLM-5.2 or o3 open source?

GLM-5.2 is open source. o3 is proprietary.