Data points: 56
The readout for GLM-4 Air and GPT-5.2, before the detailed comparison sheet.
Decision read
GPT-5.2
GPT-5.2 currently has the stronger profile, with verified wins split 2 to 4.
Evidence depth
56 data points
Includes 0 benchmark rows, 0 audit samples, and 8 provider examples.
Selection signal
Start with GPT-5.2
The charts below split 8 high-signal samples across speed, scores, and audit health.
Model compare GLM-4 Air vs GPT-5.2glm-4-air-vs-gpt-5-2 | Model A GLM-4 Air | Model B GPT-5.2 |
|---|---|---|
| Overall leader | Contender | Leading |
| Verified metric wins | 2 wins | 4 wins |
| Where it leads | Average speed, First-token latency | Cheapest input price, Free providers, Provider coverage, Recent tests |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | GLM-4 Air | GPT-5.2 |
|---|---|---|
| No shared benchmark metrics are available yet. | ||
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GLM-4 Air | 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-4 Air | GPT-5.2 |
|---|---|---|
15 tests | GLM-4 Air speed / latency N/A / N/A input / output No data | GPT-5.2 |
This report only uses LMSpeed data for GLM-4 Air and GPT-5.2: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | GLM-4 Air | GPT-5.2 |
|---|---|---|
| When to choose each model | GLM-4 Air GLM-4 Air is stronger when you prioritize Average speed, First-token latency. | GPT-5.2 GPT-5.2 is stronger when you prioritize Cheapest input price, Free providers, Provider coverage, Recent tests. |
TL;DR: GPT-5.2 leads across 56 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from GLM-4 Air vs GPT-5.2 into nearby model comparisons with enough verified LMSpeed data.
| 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 |
speed / latency
56 tok/s / 1798ms
input / output
No data
WSocket AI5 tests | GLM-4 Air speed / latency N/A / N/A input / output No data | GPT-5.2 speed / latency 54 tok/s / 1449ms input / output No data |
|---|
Yun API5 tests | GLM-4 Air glm-4-air speed / latency N/A / N/A input / output $0.019/M / $0.0096/M | GPT-5.2 gpt-5.2-chat-2025-12-11 speed / latency 32 tok/s / 1965ms input / output $10.27/M / $10.27/M |
|---|
钠 API5 tests | GLM-4 Air glm-4-air-250414 speed / latency N/A / N/A input / output $0.015/M / $0.015/M | GPT-5.2 gpt-5.2(xhigh) speed / latency 60 tok/s / 3331ms input / output $0.041/M / $0.329/M |
|---|
AAAI0 tests | GLM-4 Air speed / latency N/A / N/A input / output No data | GPT-5.2 speed / latency N/A / N/A input / output No data |
|---|
GLM-4 Air glm-4-air speed / latency No data input / output $0.143/M / $0.143/M | GPT-5.2 gpt-5.2-chat-latest speed / latency No data input / output $1.75/M / $14.00/M |
GLM-4 Air glm-4-air speed / latency No data input / output $0.180/M / $0.180/M | GPT-5.2 gpt-5.2-chat-latest speed / latency No data input / output $1.05/M / $8.40/M |
GLM-4 Air glm-4-air speed / latency No data input / output $0.214/M / $0.214/M | GPT-5.2 gpt-5.2 speed / latency No data input / output $1.87/M / $14.97/M |
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
