Data points: 77
Model compare
The readout for GLM-4.5 and GLM-5, before the detailed comparison sheet.
Weighted outcome: GLM-4.5. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
GLM-4.5
GLM-4.5 has the higher weighted result; Model A / B score 61.3 to 38.7.
Evidence depth
77 data points
Includes 5 benchmark rows, 0 audit samples, and 9 provider examples.
Selection signal
Start with GLM-4.5
The charts below split 14 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-4.5 and GLM-5: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | GLM-4.5 | GLM-5 |
|---|---|---|
| Overall leader | Leading | Contender |
| Weighted overall score | 61.3 pts | 38.7 pts |
| Benchmark category leads | 2 categories | 1 categories |
| Operational advantages | First-token latency | Average speed, Provider coverage |
| Context window | 131.1K tokens | 204.8K tokens |
| Max output | 98.3K tokens | 131.1K tokens |
| Modalities | Input Text Output Text | Input 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-4.5 | GLM-5 |
|---|---|---|
| Developer | Z.ai | Z.ai |
| Released | Jul 2025 | Feb 2026 |
| Parameters | No data | No data |
| Tokenizer | Other | Other |
| Knowledge cutoff | 2024-12-31 | No data |
| OpenRouter ID | z-ai/glm-4.5 | z-ai/glm-5 |
| References | No data | No data |
This report only uses LMSpeed data for GLM-4.5 and GLM-5: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
GLM-4.5
GLM-4.5 is stronger in benchmark categories (Reasoning, Math) and operational dimensions (First-token latency).
GLM-5
GLM-5 is stronger in benchmark categories (Coding) and operational dimensions (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-4.5
55.1
Avg. score
GLM-5
47.8
GLM-5
GLM-5 leads by 0.2
GLM-4.5 leads by 3.6
GLM-5
GLM-4.5 leads by 9.6
GLM-5
No data
GLM-5
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
GLM-4.5
83.5%
Rank #38/125 · confidence 4
GLM-5
winner85.7%
Rank #23/125 · confidence 4 · eval date 2026-03-01
GLM-4.5
12.2%
Rank #86/187 · confidence 4
GLM-5
winner27.2%
Rank #38/187 · confidence 4
GLM-4.5
78.2%
Rank #82/188 · confidence 4
GLM-5
winner82.0%
Rank #67/188 · confidence 4
GLM-4.5
34.8%
Rank #113/185 · confidence 4
GLM-5
winner46.2%
Rank #32/185 · confidence 4
GLM-4.5
1200.0
Rank #44/66 · confidence 1 · eval date 2025-06-01
GLM-5
winner1278.0
Rank #23/66 · confidence 4 · eval date 2026-03-01
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GLM-4.5 | 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-4.5 | GLM-5 |
|---|---|---|
60 tests | GLM-4.5 speed / latency 52 tok/s / 9628ms input / output No data | GLM-5 speed / latency 37 tok/s / 26385ms input / output No data |
30 tests | GLM-4.5 speed / latency N/A / N/A input / output No data | GLM-5 speed / latency 57 tok/s / 16879ms input / output No data |
10 tests | GLM-4.5 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-4.5 speed / latency N/A / N/A input / output No data | GLM-5 speed / latency 38 tok/s / 27517ms input / output No data |
0 tests | GLM-4.5 speed / latency N/A / N/A input / output No data | GLM-5 speed / latency N/A / N/A input / output No data |
GLM-4.5 glm-4.5 speed / latency No data input / output $0.041/M/$0.151/M | GLM-5 glm-5 speed / latency No data input / output $0.068/M | |
GLM-4.5 glm-4.5 speed / latency No data input / output $0.010/request | GLM-5 glm-5 speed / latency No data input / output $0.010/request | |
GLM-4.5 glm-4.5 speed / latency No data input / output $0.066/M/$0.263/M | GLM-5 glm-5 speed / latency No data input / output $2.74/M | |
GLM-4.5 glm-4.5 speed / latency No data input / output $0.066/M/$0.263/M | GLM-5 glm-5 speed / latency No data input / output $2.74/M |
Weighted outcome: GLM-4.5. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Output
| Features | Text inputText outputTool callingJSON modeReasoning | Text inputText outputTool callingStructured outputsJSON modeReasoning |
|---|
