Z.ai: GLM 4.7 vs OpenAI: GPT-5.1-Codex
z-ai vs openai
On price, Z.ai: GLM 4.7 is cheaper (blended cost is about 0.29× that of OpenAI: GPT-5.1-Codex).
On capability, OpenAI: GPT-5.1-Codex has the higher intelligence index (24) — better for complex reasoning.
Verdict: pick Z.ai: GLM 4.7 on a budget, or OpenAI: GPT-5.1-Codex for output quality. Full details below.
Side-by-Side Specs
| Metric | Z.ai: GLM 4.7 | OpenAI: GPT-5.1-Codex |
|---|---|---|
| Input /1M | $0.60 | $1.25 |
| Output /1M | $2.20 | $10.00 |
| Blended (3:1) | $1.00 | $3.44 |
| Context | 205K | 400K |
| Intelligence | 22 | 24 |
| Coding | 45 | 37 |
| Math | 95 | 96 |
| Speed | 38 tok/s | 125 tok/s |
| CPS Grade | A | A |
FAQ
Which is cheaper, Z.ai: GLM 4.7 or OpenAI: GPT-5.1-Codex?
On price, Z.ai: GLM 4.7 is cheaper (blended cost is about 0.29× that of OpenAI: GPT-5.1-Codex). Z.ai: GLM 4.7: $0.6 in / $2.2 out; OpenAI: GPT-5.1-Codex: $1.25 in / $10 out (per 1M tokens).
Which is smarter, Z.ai: GLM 4.7 or OpenAI: GPT-5.1-Codex?
On capability, OpenAI: GPT-5.1-Codex has the higher intelligence index (24) — better for complex reasoning. Coding index: Z.ai: GLM 4.7 45 vs OpenAI: GPT-5.1-Codex 37.
Which one should I choose?
Verdict: pick Z.ai: GLM 4.7 on a budget, or OpenAI: GPT-5.1-Codex for output quality. Full details below.