Data points: 57
Model compare
The readout for GLM-4 Flash and GLM-5, before the detailed comparison sheet.
Weighted outcome: GLM-4 Flash. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
GLM-4 Flash
GLM-4 Flash has the higher weighted result; Model A / B score 60 to 40.
Evidence depth
57 data points
Includes 0 benchmark rows, 0 audit samples, and 8 provider examples.
Selection signal
Start with GLM-4 Flash
The charts below split 8 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 Flash and GLM-5: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | GLM-4 Flash | GLM-5 |
|---|---|---|
| Overall leader | Leading | Contender |
| Weighted overall score | 60.0 pts | 40.0 pts |
| Benchmark category leads | 0 categories | 0 categories |
| Operational advantages | Cheapest input price, First-token latency, Free providers | Average speed, Provider coverage |
| Context window | No data | 202.8K tokens |
| Max output | No data | 202.8K tokens |
| Modalities | No data | Input Text Output Text |
| Features |
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 Flash | GLM-5 |
|---|---|---|
| Developer | Zhipu AI | Z.ai |
| Released | No data | Feb 2026 |
| Parameters | No data | No data |
| Tokenizer | No data | Other |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | No data | z-ai/glm-5 |
| References | No data | No data |
This report only uses LMSpeed data for GLM-4 Flash and GLM-5: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
GLM-4 Flash
GLM-4 Flash has these operational advantages: Cheapest input price, First-token latency, Free providers.
GLM-5
GLM-5 has these operational advantages: Average speed, 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 Flash
-
Avg. score
GLM-5
47.9
GLM-5
GLM-5
GLM-5
GLM-5
GLM-5
GLM-5
No data
GLM-5
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 Flash | GLM-5 |
|---|---|---|
| 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 Flash | GLM-5 |
|---|---|---|
90 tests | GLM-4 Flash speed / latency 44 tok/s / 420ms input / output No data | GLM-5 speed / latency 37 tok/s / 26385ms input / output No data |
20 tests | GLM-4 Flash speed / latency 78 tok/s / 1573ms input / output No data | GLM-5 speed / latency N/A / N/A input / output No data |
20 tests | GLM-4 Flash speed / latency 37 tok/s / 1175ms input / output No data | GLM-5 speed / latency 30 tok/s / 47002ms input / output No data |
10 tests | GLM-4 Flash speed / latency N/A / N/A input / output No data | GLM-5 speed / latency 41 tok/s / 18111ms input / output No data |
5 tests | GLM-4 Flash speed / latency 16 tok/s / 4323ms input / output No data | GLM-5 speed / latency N/A / N/A input / output No data |
GLM-4 Flash glm-4-flash speed / latency No data input / output $0/M/$0/M | GLM-5 glm-5 speed / latency No data input / output $150.00/M | |
GLM-4 Flash glm-4-flash speed / latency No data input / output $0/request | GLM-5 glm-5 speed / latency No data input / output $0/request | |
GLM-4 Flash glm-4-flash speed / latency No data input / output $0.0083/M/$0.0083/M | GLM-5 glm-5 speed / latency No data input / output $1.00/M |
Weighted outcome: GLM-4 Flash. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
| None listed |
Text inputText outputTool callingStructured outputsJSON modeReasoning |
