Data points: 61
Model compare
The readout for GLM-4 Air and GPT-5.4, before the detailed comparison sheet.
Weighted outcome: GPT-5.4. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
GPT-5.4
GPT-5.4 has the higher weighted result; Model A / B score 40 to 60.
Evidence depth
61 data points
Includes 0 benchmark rows, 1 audit samples, and 10 provider examples.
Selection signal
Start with GPT-5.4
The charts below split 11 high-signal samples across speed, scores, and audit health.
Switch either side of this report to compare another model with the same LMSpeed data pipeline.
Select a different model to open a new comparison URL.
This report only uses LMSpeed data for GLM-4 Air and GPT-5.4: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | GLM-4 Air | GPT-5.4 |
|---|---|---|
| Overall leader | Contender | Leading |
| Weighted overall score | 40.0 pts | 60.0 pts |
| Benchmark category leads | 0 categories | 0 categories |
| Operational advantages | Average speed, First-token latency | Cheapest input price, Free providers, Provider coverage |
| Context window | No data | 1.1M tokens |
| Max output | No data | 128K tokens |
| Modalities | No data | Input TextImageFile Output Text |
The overall result weights benchmark capability categories at 80% and price, API speed/latency, and availability at 20%. Recent test volume does not affect the winner, and missing benchmark categories are excluded.
| Model compare | GLM-4 Air | GPT-5.4 |
|---|---|---|
| Developer | Zhipu AI | OpenAI |
| Released | No data | Mar 2026 |
| Parameters | No data | No data |
| Tokenizer | No data | GPT |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | No data | openai/gpt-5.4 |
| References | No data | No data |
This report only uses LMSpeed data for GLM-4 Air and GPT-5.4: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
GLM-4 Air
GLM-4 Air has these operational advantages: Average speed, First-token latency.
GPT-5.4
GPT-5.4 has these operational advantages: Cheapest input price, Free providers, Provider coverage.
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
Compare benchmark category scores on a 0-100 scale. Select a category to inspect the gap.
Avg. score
GLM-4 Air
-
Avg. score
GPT-5.4
57.4
GPT-5.4
GPT-5.4
GPT-5.4
GPT-5.4
GPT-5.4
No data
GPT-5.4
GPT-5.4
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
No shared professional benchmark scores are available yet.
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GLM-4 Air | GPT-5.4 |
|---|---|---|
Winner: GPT-5.4 | GLM-4 Air glm-4-air No audit yet | GPT-5.4 gpt-5.4 Audit score 93 1008486100 |
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | GLM-4 Air | GPT-5.4 |
|---|---|---|
5 tests | GLM-4 Air speed / latency N/A / N/A input / output No data | GPT-5.4 speed / latency 50 tok/s / 5476ms input / output No data |
5 tests | GLM-4 Air speed / latency N/A / N/A input / output No data | GPT-5.4 speed / latency 44 tok/s / 1119ms input / output No data |
5 tests | GLM-4 Air speed / latency N/A / N/A input / output No data | GPT-5.4 speed / latency 71 tok/s / 1629ms input / output No data |
5 tests | GLM-4 Air speed / latency N/A / N/A input / output No data | GPT-5.4 speed / latency 36 tok/s / 12157ms input / output No data |
5 tests | GLM-4 Air speed / latency N/A / N/A input / output No data | GPT-5.4 speed / latency 46 tok/s / 3291ms input / output No data |
GLM-4 Air glm-4-air speed / latency No data input / output $0/request | GPT-5.4 gpt-5.4 speed / latency No data input / output $0/request | |
GLM-4 Air glm-4-air speed / latency No data input / output $0.015/M/$0.015/M | GPT-5.4 gpt-5.4 speed / latency No data input / output $1.71/M | |
GLM-4 Air glm-4-air speed / latency No data input / output $0.015/M/$0.015/M | GPT-5.4 gpt-5.4 speed / latency No data input / output $1.71/M | |
GLM-4 Air glm-4-air speed / latency No data input / output $0.015/M/$0.015/M | GPT-5.4 gpt-5.4 speed / latency No data input / output $1.71/M | |
GLM-4 Air glm-4-air speed / latency No data input / output $0.019/M/$0.0096/M | GPT-5.4 gpt-5.4 speed / latency No data input / output $2.57/M |
Weighted outcome: GPT-5.4. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
| Features | None listed | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
|---|
