Data points: 72
The readout for GLM-5.1 and GPT-5.2, before the detailed comparison sheet.
Decision read
Tie
Tie currently has the stronger profile, with verified wins split 3 to 3.
Evidence depth
72 data points
Includes 8 benchmark rows, 0 audit samples, and 10 provider examples.
Selection signal
Tie
The charts below split 18 high-signal samples across speed, scores, and audit health.
Model compare GLM-5.1 vs GPT-5.2glm-5-1-vs-gpt-5-2 | Model A GLM-5.1 | Model B GPT-5.2 |
|---|---|---|
| Overall leader | Tie | Tie |
| Verified metric wins | 3 wins | 3 wins |
| Where it leads | Cheapest input price, Free providers, Recent tests | Average speed, First-token latency, Provider coverage |
| Model metadata | No OpenRouter metadata is available yet for this model. | GPT-5.2 exposes 128K tokens; notable signals: Text input, Image input, File input, Text output. |
| Developer | Zhipu AI | OpenAI |
| Context window | No data | 128K tokens |
| Max output | No data | 16.4K tokens |
| Released | No data | Dec 2025 |
| Modalities | No data | Input FileImageText Output Text |
| Features | None listed | Text inputImage inputFile inputText outputTool callingStructured outputsJSON mode |
| Parameters | No data | No data |
| Tokenizer | No data | GPT |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | No data | openai/gpt-5.2-chat |
| References | No data | No data |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | GLM-5.1 | GPT-5.2 |
|---|---|---|
| GPQA | 86.8%#22 | 90.3%#9 |
| HLE | 28.0%#18 | 35.4%#9 |
| SciCode | 43.8%#26 | 52.1%#9 |
| Time to first token | 0.90 s#31 | 115.69 s#108 |
| Input price | $1.40/M#32 | $1.75/M#35 |
| Output price | $4.40/M#33 | $14.00/M#43 |
| Blended price | $2.15/M#53 | $4.81/M#62 |
| Output speed | 71.0 tok/s#72 | 72.8 tok/s#71 |
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GLM-5.1 | GPT-5.2 |
|---|---|---|
| No completed audits are available from shared providers yet. | ||
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | GLM-5.1 | GPT-5.2 |
|---|---|---|
星见雅 API20 tests | GLM-5.1 speed / latency 22 tok/s / 9579ms input / output No data | GPT-5.2 speed / latency 52 tok/s / 2671ms input / output No data |
N1N15 tests | GLM-5.1 speed / latency N/A / N/A input / output No data | GPT-5.2 speed / latency 56 tok/s / 1798ms input / output No data |
OpenRouter15 tests | GLM-5.1 speed / latency 58 tok/s / 14051ms input / output No data | GPT-5.2 speed / latency N/A / N/A input / output No data |
CatClaw API10 tests | GLM-5.1 speed / latency 54 tok/s / 12475ms input / output No data | GPT-5.2 speed / latency N/A / N/A input / output No data |
TradingBase API10 tests | GLM-5.1 speed / latency 42 tok/s / 15344ms input / output No data | GPT-5.2 speed / latency N/A / N/A input / output No data |
GLM-5.1 z-ai/glm-5.1 speed / latency No data input / output $0/M / $0/M | GPT-5.2 gpt-5.2 speed / latency No data input / output $1.75/M / $14.00/M | |
GLM-5.1 GLM-5.1 speed / latency No data input / output $0/M / $0/M | GPT-5.2 GPT-5.2 speed / latency No data input / output $75.00/M / $75.00/M | |
GLM-5.1 ZhipuAI/GLM-5.1 speed / latency No data input / output $0.0068/M / $0.0068/M | GPT-5.2 gpt-5.2(xhigh) speed / latency No data input / output $0.041/M / $0.329/M | |
GLM-5.1 GLM-5.1 speed / latency No data input / output $0.0068/M / $0.0068/M | GPT-5.2 gpt-5.2 speed / latency No data input / output $0.240/M / $1.92/M | |
GLM-5.1 glm-5.1 speed / latency No data input / output $0.010/M / $0.010/M | GPT-5.2 gpt-5.2 speed / latency No data input / output $0.050/M / $0.050/M |
This report only uses LMSpeed data for GLM-5.1 and GPT-5.2: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | GLM-5.1 | GPT-5.2 |
|---|---|---|
| When to choose each model | GLM-5.1 GLM-5.1 is stronger when you prioritize Cheapest input price, Free providers, Recent tests. | GPT-5.2 GPT-5.2 is stronger when you prioritize Average speed, First-token latency, Provider coverage. |
TL;DR: Tie leads across 72 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from GLM-5.1 vs GPT-5.2 into nearby model comparisons with enough verified LMSpeed data.
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
