Compare · ModelsLive · 2 picked · head to head
GLM 5.3 vs GPT-5.1-Codex-Mini
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
GPT-5.1-Codex-Mini wins on 0/0 benchmarks
Not enough overlapping benchmarks to declare a winner yet · GLM 5.3 · GPT-5.1-Codex-Mini are still filling in scores.
Hype vs Reality
Attention vs performance
GLM 5.3
#80 by perf·#3 by attention
GPT-5.1-Codex-Mini
#45 by perf·#4 by attention
Best value
GPT-5.1-Codex-Mini
2.8x better value than GLM 5.3
GLM 5.3
19.0 pts/$
$2.90/M
GPT-5.1-Codex-Mini
53.7 pts/$
$1.13/M
Vendor risk
Who is behind the model
z-ai
private · undisclosed
OpenAI
$840.0B·Tier 1
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| $1.40 | $4.40 | 1.0M tokens (~524 books) | $21.50 | |
| $0.25 | $2.00 | 400K tokens (~200 books) | $6.88 |