Z.ai: GLM 5.2 vs OpenAI: GPT-5.2
z-ai vs openai
Verdict
On price, Z.ai: GLM 5.2 is cheaper (blended cost is about 0.35× that of OpenAI: GPT-5.2).
On capability, Z.ai: GLM 5.2 has the higher intelligence index (34) — better for complex reasoning.
Verdict: pick Z.ai: GLM 5.2 on a budget, or Z.ai: GLM 5.2 for output quality. Full details below.
Side-by-Side Specs
| Metric | Z.ai: GLM 5.2 | OpenAI: GPT-5.2 |
|---|---|---|
| Input /1M | $0.01 | $1.75 |
| Output /1M | $6.80 | $14.00 |
| Blended (3:1) | $1.70 | $4.81 |
| Context | 1.0M | 400K |
| Intelligence | 34 | 30 |
| Coding | 69 | 49 |
| Math | — | 99 |
| Speed | 93 tok/s | 73 tok/s |
| CPS Grade | A | A |
Z.ai: GLM 5.2 details →OpenAI: GPT-5.2 details →z-ai pricing →openai pricing →← All comparisonsCheapest General LLMs APIs →Cheapest Text Processing APIs →
FAQ
Which is cheaper, Z.ai: GLM 5.2 or OpenAI: GPT-5.2?
On price, Z.ai: GLM 5.2 is cheaper (blended cost is about 0.35× that of OpenAI: GPT-5.2). Z.ai: GLM 5.2: $0.006 in / $6.8 out; OpenAI: GPT-5.2: $1.75 in / $14 out (per 1M tokens).
Which is smarter, Z.ai: GLM 5.2 or OpenAI: GPT-5.2?
On capability, Z.ai: GLM 5.2 has the higher intelligence index (34) — better for complex reasoning. Coding index: Z.ai: GLM 5.2 69 vs OpenAI: GPT-5.2 49.
Which one should I choose?
Verdict: pick Z.ai: GLM 5.2 on a budget, or Z.ai: GLM 5.2 for output quality. Full details below.