Compare · ModelsLive · 2 picked · head to head
GLM 5.1 vs GPT-5.1-Codex-Mini
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
GLM 5.1 wins on 8/8 benchmarks
GLM 5.1 wins 8 of 8 shared benchmarks. Leads in coding · reasoning · language.
Category leads
coding·GLM 5.1reasoning·GLM 5.1language·GLM 5.1math·GLM 5.1knowledge·GLM 5.1
Hype vs Reality
Attention vs performance
GLM 5.1
#88 by perf·#3 by attention
GPT-5.1-Codex-Mini
#48 by perf·#10 by attention
Best value
GPT-5.1-Codex-Mini
2.0x better value than GLM 5.1
GLM 5.1
27.1 pts/$
$2.00/M
GPT-5.1-Codex-Mini
53.7 pts/$
$1.13/M
Vendor risk
Who is behind the model
z-ai
private · undisclosed
OpenAI
$840.0B·Tier 1
Head to head
8 benchmarks · 2 models
GLM 5.1GPT-5.1-Codex-Mini
LiveBench · Agentic Coding
GLM 5.1 leads by +15.0
GLM 5.1
55.0
GPT-5.1-Codex-Mini
40.0
LiveBench · Coding
GLM 5.1 leads by +5.4
GLM 5.1
75.4
GPT-5.1-Codex-Mini
69.9
LiveBench · Data Analysis
GLM 5.1 leads by +13.5
GLM 5.1
63.2
GPT-5.1-Codex-Mini
49.7
LiveBench · If
GLM 5.1 leads by +9.4
GLM 5.1
68.5
GPT-5.1-Codex-Mini
59.0
LiveBench · Language
GLM 5.1 leads by +8.8
GLM 5.1
71.8
GPT-5.1-Codex-Mini
63.0
LiveBench · Mathematics
GLM 5.1 leads by +8.6
GLM 5.1
84.9
GPT-5.1-Codex-Mini
76.3
LiveBench · Overall
GLM 5.1 leads by +9.8
GLM 5.1
70.2
GPT-5.1-Codex-Mini
60.4
LiveBench · Reasoning
GLM 5.1 leads by +7.8
GLM 5.1
72.5
GPT-5.1-Codex-Mini
64.7
Full benchmark table
| Benchmark | GLM 5.1 | GPT-5.1-Codex-Mini |
|---|---|---|
LiveBench · Agentic Coding | 55.0 | 40.0 |
LiveBench · Coding | 75.4 | 69.9 |
LiveBench · Data Analysis | 63.2 | 49.7 |
LiveBench · If | 68.5 | 59.0 |
LiveBench · Language | 71.8 | 63.0 |
LiveBench · Mathematics | 84.9 | 76.3 |
LiveBench · Overall | 70.2 | 60.4 |
LiveBench · Reasoning | 72.5 | 64.7 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| $0.97 | $3.04 | 205K tokens (~102 books) | $14.83 | |
| $0.25 | $2.00 | 400K tokens (~200 books) | $6.88 |