Data points: 100
Model compare
The readout for GLM-5.1 and GLM-5 Turbo, before the detailed comparison sheet.
Weighted outcome: GLM-5.1. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
GLM-5.1
GLM-5.1 has the higher weighted result; Model A / B score 80 to 20.
Evidence depth
100 data points
Includes 15 benchmark rows, 1 audit samples, and 8 provider examples.
Selection signal
Start with GLM-5.1
The charts below split 24 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-5.1 and GLM-5 Turbo: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | GLM-5.1 | GLM-5 Turbo |
|---|---|---|
| Overall leader | Leading | Contender |
| Weighted overall score | 80.0 pts | 20.0 pts |
| Benchmark category leads | 4 categories | 1 categories |
| Operational advantages | Cheapest input price, First-token latency, Free providers, Provider coverage | Average speed |
| Context window | 204.8K tokens | 202.8K tokens |
| Max output | 128K 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-5.1 | GLM-5 Turbo |
|---|---|---|
| Developer | Z.ai | Z.ai |
| Released | Apr 2026 | Mar 2026 |
| Parameters | No data | No data |
| Tokenizer | Other | Other |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | z-ai/glm-5.1 | z-ai/glm-5-turbo |
| References | No data | No data |
This report only uses LMSpeed data for GLM-5.1 and GLM-5 Turbo: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
GLM-5.1
GLM-5.1 is stronger in benchmark categories (Agents, Reasoning, Knowledge, Instruction following) and operational dimensions (Cheapest input price, First-token latency, Free providers, Provider coverage).
GLM-5 Turbo
GLM-5 Turbo is stronger in benchmark categories (Coding) and operational dimensions (Average speed).
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-5.1
54.4
Avg. score
GLM-5 Turbo
52.6
GLM-5.1 leads by 1.7
GLM-5 Turbo leads by 1.0
GLM-5.1 leads by 2.1
GLM-5.1 leads by 7.7
GLM-5.1
No data
No data
GLM-5.1 leads by 1.3
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
GLM-5.1
winner86.8%
Rank #35/188 · confidence 4
GLM-5 Turbo
84.7%
Rank #47/188 · confidence 4
GLM-5.1
winner28.0%
Rank #35/187 · confidence 4
GLM-5 Turbo
25.4%
Rank #45/187 · confidence 4
GLM-5.1
winner4.6
Rank #37/73 · confidence 2 · eval date 2026-04-07
GLM-5 Turbo
0.3
Rank #68/73 · confidence 1 · eval date 2026-03-01
GLM-5.1
winner62.3
Rank #55/89 · confidence 2 · eval date 2026-04-07
GLM-5 Turbo
60.7
Rank #59/89 · confidence 1 · eval date 2026-03-01
GLM-5.1
winner43.8%
Rank #39/185 · confidence 4
GLM-5 Turbo
43.6%
Rank #40/185 · confidence 4
GLM-5.1
winner43.8
Rank #42/96 · confidence 2 · eval date 2026-04-07
GLM-5 Turbo
43.6
Rank #43/96 · confidence 1 · eval date 2026-03-01
GLM-5.1
winner40.2
Rank #28/99 · confidence 2 · eval date 2026-04-07
GLM-5 Turbo
38.1
Rank #38/99 · confidence 1 · eval date 2026-03-01
GLM-5.1
winner28.0
Rank #35/96 · confidence 2 · eval date 2026-04-07
GLM-5 Turbo
25.4
Rank #43/96 · confidence 1 · eval date 2026-03-01
GLM-5.1
winner86.8
Rank #38/96 · confidence 2 · eval date 2026-04-07
GLM-5 Turbo
84.7
Rank #46/96 · confidence 1 · eval date 2026-03-01
GLM-5.1
24.2
Rank #62/90 · confidence 2 · eval date 2026-04-07
GLM-5 Turbo
winner29.0
Rank #46/90 · confidence 1 · eval date 2026-03-01
GLM-5.1
29.4
Rank #83/90 · confidence 2 · eval date 2026-04-07
GLM-5 Turbo
winner62.2
Rank #59/90 · confidence 1 · eval date 2026-03-01
GLM-5.1
winner1299.0
Rank #14/66 · confidence 2 · eval date 2026-04-07
GLM-5 Turbo
1296.0
Rank #16/66 · confidence 1 · eval date 2026-03-01
GLM-5.1
winner76.3
Rank #13/86 · confidence 2 · eval date 2026-04-07
GLM-5 Turbo
73.2
Rank #28/86 · confidence 1 · eval date 2026-03-01
GLM-5.1
97.7
Rank #7/84 · confidence 2 · eval date 2026-04-07
GLM-5 Turbo
winner98.5
Rank #2/84 · confidence 1 · eval date 2026-03-01
GLM-5.1
winner62.3
Rank #10/28 · confidence 2 · eval date 2026-04-07
GLM-5 Turbo
55.8
Rank #22/28 · confidence 1 · eval date 2026-03-01
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GLM-5.1 | GLM-5 Turbo |
|---|---|---|
Winner: GLM-5.1 | GLM-5.1 glm-5.1 Audit score 97 10010086100 | GLM-5 Turbo glm-5-turbo No audit yet |
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | GLM-5.1 | GLM-5 Turbo |
|---|---|---|
75 tests | GLM-5.1 speed / latency 35 tok/s / 17508ms input / output No data | GLM-5 Turbo speed / latency 58 tok/s / 14600ms input / output No data |
15 tests | GLM-5.1 speed / latency 58 tok/s / 14051ms input / output No data | GLM-5 Turbo speed / latency N/A / N/A input / output No data |
10 tests | GLM-5.1 speed / latency 48 tok/s / 11325ms input / output No data | GLM-5 Turbo speed / latency 48 tok/s / 17276ms input / output No data |
10 tests | GLM-5.1 speed / latency 40 tok/s / 17425ms input / output No data | GLM-5 Turbo speed / latency N/A / N/A input / output No data |
5 tests | GLM-5.1 speed / latency 57 tok/s / 1182ms input / output No data | GLM-5 Turbo speed / latency N/A / N/A input / output No data |
GLM-5.1 glm-5.1 speed / latency No data input / output $0.096/M/$0.301/M | GLM-5 Turbo glm-5-turbo speed / latency No data input / output $0.082/M | |
GLM-5.1 GLM-5.1 speed / latency No data input / output $0.080/request | GLM-5 Turbo glm-5-turbo speed / latency No data input / output $2.50/M | |
GLM-5.1 GLM-5.1 speed / latency No data input / output $0.080/request | GLM-5 Turbo glm-5-turbo speed / latency No data input / output $2.50/M |
Weighted outcome: GLM-5.1. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Output
| Features | Text inputText outputTool callingStructured outputsJSON modeReasoning | Text inputText outputTool callingJSON modeReasoning |
|---|
