Data points: 56
The readout for GLM-4.5-X and GPT-5.4, before the detailed comparison sheet.
Decision read
GPT-5.4
GPT-5.4 currently has the stronger profile, with verified wins split 1 to 5.
Evidence depth
56 data points
Includes 0 benchmark rows, 0 audit samples, and 9 provider examples.
Selection signal
Start with GPT-5.4
The charts below split 9 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.
Model compare GLM-4.5-X vs GPT-5.4glm-4-5-x-vs-gpt-5-4 | Model A GLM-4.5-X | Model B GPT-5.4 |
|---|---|---|
| Overall leader | Contender | Leading |
| Verified metric wins | 1 wins | 5 wins |
| Where it leads | Average speed | Cheapest input price, First-token latency, Free providers, Provider coverage, Recent tests |
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-4.5-X
-
Avg. score
GPT-5.4
66.6
Selected category
Agents
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-4.5-X | GPT-5.4 |
|---|---|---|
| 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-4.5-X | GPT-5.4 |
|---|---|---|
5 tests | GLM-4.5-X speed / latency N/A / N/A input / output No data | GPT-5.4 |
This report only uses LMSpeed data for GLM-4.5-X and GPT-5.4: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | GLM-4.5-X | GPT-5.4 |
|---|---|---|
| When to choose each model | GLM-4.5-X GLM-4.5-X is stronger when you prioritize Average speed. | GPT-5.4 GPT-5.4 is stronger when you prioritize Cheapest input price, First-token latency, Free providers, Provider coverage, Recent tests. |
TL;DR: GPT-5.4 leads across 56 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from GLM-4.5-X vs GPT-5.4 into nearby model comparisons with enough verified LMSpeed data.
| Model metadata | No OpenRouter metadata is available yet for this model. | GPT-5.4 exposes 1.1M tokens; notable signals: Text input, Image input, File input, Text output. |
|---|---|---|
| Developer | Zhipu AI | OpenAI |
| Context window | No data | 1.1M tokens |
| Max output | No data | 128K tokens |
| Released | No data | Mar 2026 |
| Modalities | No data | Input TextImageFile Output Text |
| Features | None listed | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
| 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 |
speed / latency
44 tok/s / 1119ms
input / output
No data
天絮 API5 tests | GLM-4.5-X speed / latency N/A / N/A input / output No data | GPT-5.4 speed / latency 46 tok/s / 3291ms input / output No data |
|---|
小水管 API5 tests | GLM-4.5-X speed / latency N/A / N/A input / output No data | GPT-5.4 speed / latency 44 tok/s / 2518ms input / output No data |
|---|
AAAI0 tests | GLM-4.5-X speed / latency N/A / N/A input / output No data | GPT-5.4 speed / latency N/A / N/A input / output No data |
|---|
CaMeL AI0 tests | GLM-4.5-X glm-4.5-x speed / latency N/A / N/A input / output $0.960/M / $3.84/M | GPT-5.4 gpt-5.4-low speed / latency N/A / N/A input / output $60.00/M / $360.00/M |
|---|
GLM-4.5-X glm-4.5-x speed / latency No data input / output $0.548/M / $2.19/M | GPT-5.4 gpt-5.4-2026-03-05 speed / latency No data input / output $0.342/M / $2.05/M |
GLM-4.5-X glm-4.5-x speed / latency No data input / output $0.548/M / $2.19/M | GPT-5.4 gpt-5.4-2026-03-05 speed / latency No data input / output $0.342/M / $2.05/M |
GLM-4.5-X glm-4.5-x speed / latency No data input / output $0.822/M / $3.29/M | GPT-5.4 gpt-5.4-2026-03-05 speed / latency No data input / output $0.514/M / $3.08/M |
GLM-4.5-X glm-4.5-x speed / latency No data input / output $1.10/M / $4.38/M | GPT-5.4 gpt-5.4-2026-03-05 speed / latency No data input / output $0.685/M / $4.11/M |
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
