Data points: 162
Model compare
The readout for GLM-5.1 and Qwen3.5, 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 92 to 8.
Evidence depth
162 data points
Includes 43 benchmark rows, 2 audit samples, and 9 provider examples.
Selection signal
Start with GLM-5.1
The charts below split 54 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 Qwen3.5: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | GLM-5.1 | Qwen3.5 |
|---|---|---|
| Overall leader | Leading | Contender |
| Weighted overall score | 92.0 pts | 8.0 pts |
| Benchmark category leads | 6 categories | 0 categories |
| Operational advantages | Cheapest input price, Average speed, Provider coverage | First-token latency, Free providers |
| Context window | 202.8K tokens | 262.1K tokens |
| Max output | 128K tokens | 262.1K 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 | Qwen3.5 |
|---|---|---|
| Developer | Z.ai | No data |
| Released | Apr 2026 | Mar 2026 |
| Parameters | No data | 9B |
| Tokenizer | Other | Qwen3 |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | z-ai/glm-5.1 | qwen/qwen3.5-9b |
| References | No data | No data |
This report only uses LMSpeed data for GLM-5.1 and Qwen3.5: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
GLM-5.1
GLM-5.1 is stronger in benchmark categories (Agents, Coding, Reasoning, Knowledge, Math) and operational dimensions (Cheapest input price, Average speed, Provider coverage).
Qwen3.5
Qwen3.5 has these operational advantages: First-token latency, Free providers.
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
55.1
Avg. score
Qwen3.5
49.8
GLM-5.1 leads by 8.3
GLM-5.1 leads by 11.2
GLM-5.1 leads by 1.1
GLM-5.1 leads by 5.5
GLM-5.1 leads by 10.3
Qwen3.5
Qwen3.5
GLM-5.1 leads by 1.4
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
GLM-5.1
winner67.0
Rank #39/127 · confidence 3 · eval date 2026-04-07
Qwen3.5
59.0
Rank #52/127 · confidence 4 · eval date 2026-02-16
GLM-5.1
0.93 s
Rank #48/139 · confidence 4
Qwen3.5
winner0.47 s
Rank #9/139 · confidence 4
GLM-5.1
winner65.7 tok/s
Rank #88/139 · confidence 4
Qwen3.5
21.1 tok/s
Rank #138/139 · confidence 4
GLM-5.1
winner58.62 s
Rank #125/139 · confidence 4
Qwen3.5
95.27 s
Rank #134/139 · confidence 4
GLM-5.1
$2.15/M
Rank #105/163 · confidence 4
Qwen3.5
winner$0.060/M
Rank #1/163 · confidence 4
GLM-5.1
$1.40/M
Rank #118/163 · confidence 4
Qwen3.5
winner$0.030/M
Rank #1/163 · confidence 4
GLM-5.1
$4.40/M
Rank #99/163 · confidence 4
Qwen3.5
winner$0.150/M
Rank #2/163 · confidence 4
GLM-5.1
winner56.2
Rank #30/70 · confidence 3 · eval date 2026-04-07
Qwen3.5
54.9
Rank #34/70 · confidence 4 · eval date 2026-02-16
GLM-5.1
winner86.8%
Rank #34/187 · confidence 4
Qwen3.5
77.1%
Rank #87/187 · confidence 4
GLM-5.1
winner28.0%
Rank #34/186 · confidence 4
Qwen3.5
7.8%
Rank #106/186 · confidence 4
GLM-5.1
winner4.6
Rank #37/73 · confidence 3 · eval date 2026-04-07
Qwen3.5
1.7
Rank #48/73 · confidence 4 · eval date 2026-02-16
GLM-5.1
62.3
Rank #55/89 · confidence 3 · eval date 2026-04-07
Qwen3.5
winner65.7
Rank #42/89 · confidence 4 · eval date 2026-02-16
GLM-5.1
winner58.4
Rank #14/37 · confidence 3 · eval date 2026-04-07
Qwen3.5
50.9
Rank #33/37 · confidence 4 · eval date 2026-02-16
GLM-5.1
winner43.2
Rank #24/85 · confidence 3 · eval date 2026-04-07
Qwen3.5
40.9
Rank #30/85 · confidence 4 · eval date 2026-02-16
GLM-5.1
winner55.8
Rank #26/58 · confidence 3 · eval date 2026-04-07
Qwen3.5
48.2
Rank #33/58 · confidence 4 · eval date 2026-02-16
GLM-5.1
winner73.5
Rank #29/100 · confidence 3 · eval date 2026-04-07
Qwen3.5
59.0
Rank #60/100 · confidence 4 · eval date 2026-02-16
GLM-5.1
winner43.8%
Rank #38/184 · confidence 4
Qwen3.5
16.1%
Rank #181/184 · confidence 4
GLM-5.1
winner43.8
Rank #42/96 · confidence 3 · eval date 2026-04-07
Qwen3.5
42.0
Rank #49/96 · confidence 4 · eval date 2026-02-16
GLM-5.1
winner94.0
Rank #4/9 · confidence 3 · eval date 2026-04-07
Qwen3.5
92.7
Rank #6/9 · confidence 4 · eval date 2026-02-16
GLM-5.1
winner83.8
Rank #4/10 · confidence 3 · eval date 2026-04-07
Qwen3.5
80.9
Rank #8/10 · confidence 4 · eval date 2026-02-16
GLM-5.1
winner95.3
Rank #5/10 · confidence 3 · eval date 2026-04-07
Qwen3.5
93.3
Rank #9/10 · confidence 4 · eval date 2026-02-16
GLM-5.1
82.6
Rank #14/14 · confidence 3 · eval date 2026-04-07
Qwen3.5
winner87.9
Rank #7/14 · confidence 4 · eval date 2026-02-16
GLM-5.1
64.4
Rank #21/59 · confidence 3 · eval date 2026-04-07
Qwen3.5
winner64.5
Rank #20/59 · confidence 4 · eval date 2026-02-16
GLM-5.1
winner83.7
Rank #12/92 · confidence 3 · eval date 2026-04-07
Qwen3.5
67.8
Rank #37/92 · confidence 4 · eval date 2026-02-16
GLM-5.1
29.4
Rank #83/90 · confidence 3 · eval date 2026-04-07
Qwen3.5
winner89.1
Rank #17/90 · confidence 4 · eval date 2026-02-16
GLM-5.1
winner40.2
Rank #27/99 · confidence 3 · eval date 2026-04-07
Qwen3.5
33.7
Rank #53/99 · confidence 4 · eval date 2026-02-16
GLM-5.1
86.8
Rank #38/96 · confidence 3 · eval date 2026-04-07
Qwen3.5
winner89.3
Rank #28/96 · confidence 4 · eval date 2026-02-16
GLM-5.1
winner28.0
Rank #35/96 · confidence 3 · eval date 2026-04-07
Qwen3.5
27.3
Rank #36/96 · confidence 4 · eval date 2026-02-16
GLM-5.1
24.2
Rank #62/90 · confidence 3 · eval date 2026-04-07
Qwen3.5
winner31.4
Rank #41/90 · confidence 4 · eval date 2026-02-16
GLM-5.1
76.3
Rank #13/86 · confidence 3 · eval date 2026-04-07
Qwen3.5
winner78.8
Rank #6/86 · confidence 4 · eval date 2026-02-16
GLM-5.1
winner85.9
Rank #12/75 · confidence 3 · eval date 2026-04-07
Qwen3.5
76.9
Rank #25/75 · confidence 4 · eval date 2026-02-16
GLM-5.1
winner70.6
Rank #4/9 · confidence 3 · eval date 2026-04-07
Qwen3.5
68.4
Rank #6/9 · confidence 4 · eval date 2026-02-16
GLM-5.1
winner18.2
Rank #7/19 · confidence 3 · eval date 2026-04-07
Qwen3.5
14.2
Rank #16/19 · confidence 4 · eval date 2026-02-16
GLM-5.1
winner97.7
Rank #7/84 · confidence 3 · eval date 2026-04-07
Qwen3.5
95.6
Rank #15/84 · confidence 4 · eval date 2026-02-16
GLM-5.1
winner62.3
Rank #10/28 · confidence 3 · eval date 2026-04-07
Qwen3.5
56.8
Rank #21/28 · confidence 4 · eval date 2026-02-16
GLM-5.1
winner71.8
Rank #11/22 · confidence 3 · eval date 2026-04-07
Qwen3.5
46.1
Rank #19/22 · confidence 4 · eval date 2026-02-16
GLM-5.1
winner60.1
Rank #12/50 · confidence 3 · eval date 2026-04-07
Qwen3.5
46.8
Rank #28/50 · confidence 4 · eval date 2026-02-16
GLM-5.1
winner68.0
Rank #17/24 · confidence 3 · eval date 2026-04-07
Qwen3.5
62.0
Rank #20/24 · confidence 4 · eval date 2026-02-16
GLM-5.1
winner37.8
Rank #17/50 · confidence 3 · eval date 2026-04-07
Qwen3.5
23.1
Rank #38/50 · confidence 4 · eval date 2026-02-16
GLM-5.1
winner1257.0
Rank #17/54 · confidence 3 · eval date 2026-04-07
Qwen3.5
962.0
Rank #38/54 · confidence 4 · eval date 2026-02-16
GLM-5.1
winner29.9
Rank #21/54 · confidence 3 · eval date 2026-04-07
Qwen3.5
19.9
Rank #39/54 · confidence 4 · eval date 2026-02-16
GLM-5.1
winner63.5
Rank #23/45 · confidence 3 · eval date 2026-04-07
Qwen3.5
52.5
Rank #34/45 · confidence 4 · eval date 2026-02-16
GLM-5.1
winner60.2
Rank #39/95 · confidence 3 · eval date 2026-04-07
Qwen3.5
47.8
Rank #58/95 · confidence 4 · eval date 2026-02-16
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GLM-5.1 | Qwen3.5 |
|---|---|---|
Winner: GLM-5.1 | GLM-5.1 glm-5.1 Audit score 97 10010086100 | Qwen3.5 qwen/qwen3.5-122b-a10b No audit yet |
Winner: GLM-5.1 | GLM-5.1 z-ai/glm-5.1 Audit score 78 70728088 | Qwen3.5 qwen/qwen3.5-122b-a10b 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 | Qwen3.5 |
|---|---|---|
200 tests | GLM-5.1 speed / latency 82 tok/s / 9309ms input / output No data | Qwen3.5 speed / latency 37 tok/s / 8257ms input / output No data |
45 tests | GLM-5.1 speed / latency 50 tok/s / 9040ms input / output No data | Qwen3.5 speed / latency 66 tok/s / 22905ms input / output No data |
20 tests | GLM-5.1 speed / latency N/A / N/A input / output No data | Qwen3.5 speed / latency 21 tok/s / 3994ms input / output No data |
20 tests | GLM-5.1 speed / latency 22 tok/s / 9579ms input / output No data | Qwen3.5 speed / latency 31 tok/s / 3233ms input / output No data |
15 tests | GLM-5.1 speed / latency 62 tok/s / 25980ms input / output No data | Qwen3.5 speed / latency N/A / N/A input / output No data |
GLM-5.1 glm-5.1 speed / latency No data input / output $0.050/request | Qwen3.5 qwen/qwen3.5-122b-a10b speed / latency No data input / output $0/request | |
GLM-5.1 z-ai/glm-5.1 speed / latency No data input / output $0/request | Qwen3.5 qwen/qwen3.5-397b-a17b speed / latency No data input / output $0/request | |
GLM-5.1 glm-5.1 speed / latency No data input / output $0/M/$0/M | Qwen3.5 qwen3.5-397b-a17b speed / latency No data input / output $0/M | |
GLM-5.1 glm-5.1 speed / latency No data input / output $0/M/$0/M | Qwen3.5 qwen3.5-397b-a17b speed / latency No data input / output $0/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 inputImage inputText outputTool callingStructured outputsJSON modeReasoning |
|---|
