Compare · ModelsLive · 2 picked · head to head
GPT-5.1-Codex-Max vs GLM 5
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
GPT-5.1-Codex-Max wins on 6/8 benchmarks
GPT-5.1-Codex-Max wins 6 of 8 shared benchmarks. Leads in coding · language · math.
Category leads
coding·GPT-5.1-Codex-Maxreasoning·GLM 5language·GPT-5.1-Codex-Maxmath·GPT-5.1-Codex-Maxknowledge·GPT-5.1-Codex-Max
Hype vs Reality
Attention vs performance
GPT-5.1-Codex-Max
#10 by perf·no signal
GLM 5
#53 by perf·#27 by attention
Best value
GLM 5
3.0x better value than GPT-5.1-Codex-Max
GPT-5.1-Codex-Max
12.8 pts/$
$5.63/M
GLM 5
38.1 pts/$
$1.51/M
Vendor risk
Who is behind the model
OpenAI
$840.0B·Tier 1
z-ai
private · undisclosed
Head to head
8 benchmarks · 2 models
GPT-5.1-Codex-MaxGLM 5
LiveBench · Agentic Coding
GPT-5.1-Codex-Max leads by +1.7
GPT-5.1-Codex-Max
56.7
GLM 5
55.0
LiveBench · Coding
GPT-5.1-Codex-Max leads by +7.7
GPT-5.1-Codex-Max
81.4
GLM 5
73.6
LiveBench · Data Analysis
GLM 5 leads by +13.0
GPT-5.1-Codex-Max
54.9
GLM 5
67.9
LiveBench · If
GPT-5.1-Codex-Max leads by +11.8
GPT-5.1-Codex-Max
67.1
GLM 5
55.3
LiveBench · Language
GLM 5 leads by +2.1
GPT-5.1-Codex-Max
75.4
GLM 5
77.5
LiveBench · Mathematics
GPT-5.1-Codex-Max leads by +0.2
GPT-5.1-Codex-Max
83.7
GLM 5
83.5
LiveBench · Overall
GPT-5.1-Codex-Max leads by +3.1
GPT-5.1-Codex-Max
72.0
GLM 5
68.8
LiveBench · Reasoning
GPT-5.1-Codex-Max leads by +15.5
GPT-5.1-Codex-Max
84.6
GLM 5
69.1
Full benchmark table
| Benchmark | GPT-5.1-Codex-Max | GLM 5 |
|---|---|---|
LiveBench · Agentic Coding | 56.7 | 55.0 |
LiveBench · Coding | 81.4 | 73.6 |
LiveBench · Data Analysis | 54.9 | 67.9 |
LiveBench · If | 67.1 | 55.3 |
LiveBench · Language | 75.4 | 77.5 |
LiveBench · Mathematics | 83.7 | 83.5 |
LiveBench · Overall | 72.0 | 68.8 |
LiveBench · Reasoning | 84.6 | 69.1 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| GPT-5.1-Codex-Max | $1.25 | $10.00 | 400K tokens (~200 books) | $34.38 |
| GLM 5 | $0.72 | $2.30 | 80K tokens (~40 books) | $11.15 |
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