GLM 5.3 Prime vs o1

Price, context window & benchmark comparison

Z

GLM 5.3 Prime

Z.ai (Zhipu)
$2.80 / $8.80
Input / Output · per 1M tokens
VS
O

o1

OpenAI
$15.00 / $60.00
Input / Output · per 1M tokens
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Z
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Verdict: GLM 5.3 Prime is 6.1× cheaper than o1 on a typical 3:1 input/output mix. GLM 5.3 Prime has the larger context window (1M vs 200K).
GLM 5.3 Primeo1
Input price / 1M$2.80$15.00
Output price / 1M$8.80$60.00
Blended price (3:1)$4.30$26.25
Cached input / 1M$0.56$7.50
Context window1M200K
Max output131K100K
Intelligence index
Coding index39.7
Providers1
Best provider uptime (30m)100.0%
Vision inputNoYes
ReasoningYesYes
Tool callingYesYes
Released2026-09-232024-12-17
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FAQ

Which is cheaper, GLM 5.3 Prime or o1?

GLM 5.3 Prime is 6.1× cheaper than o1 on a typical 3:1 input/output mix.

GLM 5.3 Prime vs o1: which has a bigger context window?

GLM 5.3 Prime: 1,000,000 tokens. o1: 200,000 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: GLM 5.3 Prime ≈ $10,000, o1 ≈ $60,000.

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