Data points: 140
Model compare
The readout for GLM-5.1 and Step 3.7 Flash, 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 74 to 26.
Evidence depth
140 data points
Includes 32 benchmark rows, 2 audit samples, and 10 provider examples.
Selection signal
Start with GLM-5.1
The charts below split 44 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 Step 3.7 Flash: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | GLM-5.1 | Step 3.7 Flash |
|---|---|---|
| Overall leader | Leading | Contender |
| Weighted overall score | 74.0 pts | 26.0 pts |
| Benchmark category leads | 4 categories | 1 categories |
| Operational advantages | First-token latency, Provider coverage | Average speed, Free providers |
| Context window | 202.8K tokens | 256K tokens |
| Max output | 128K tokens | 256K 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 | Step 3.7 Flash |
|---|---|---|
| Developer | Z.ai | StepFun |
| Released | Apr 2026 | May 2026 |
| Parameters | No data | No data |
| Tokenizer | Other | Other |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | z-ai/glm-5.1 | stepfun/step-3.7-flash |
| References | No data | No data |
This report only uses LMSpeed data for GLM-5.1 and Step 3.7 Flash: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
GLM-5.1
GLM-5.1 is stronger in benchmark categories (Coding, Reasoning, Knowledge, Instruction following) and operational dimensions (First-token latency, Provider coverage).
Step 3.7 Flash
Step 3.7 Flash is stronger in benchmark categories (Agents) and operational dimensions (Average speed, 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
54.6
Avg. score
Step 3.7 Flash
52
Step 3.7 Flash leads by 0.3
GLM-5.1 leads by 5.3
GLM-5.1 leads by 1.0
GLM-5.1 leads by 14.1
GLM-5.1
No data
Step 3.7 Flash
GLM-5.1 leads by 3.4
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
GLM-5.1
winner64.0
Rank #24/83 · confidence 2 · eval date 2026-04-07
Step 3.7 Flash
53.0
Rank #51/83 · confidence 1 · eval date 2026-05-29
GLM-5.1
87.6 tok/s
Rank #76/136 · confidence 4
Step 3.7 Flash
winner400.3 tok/s
Rank #2/136 · confidence 4
GLM-5.1
0.85 s
Rank #46/136 · confidence 4
Step 3.7 Flash
winner0.73 s
Rank #35/136 · confidence 4
GLM-5.1
44.13 s
Rank #119/136 · confidence 4
Step 3.7 Flash
winner5.72 s
Rank #64/136 · confidence 4
GLM-5.1
$1.40/M
Rank #117/162 · confidence 4
Step 3.7 Flash
winner$0.200/M
Rank #27/162 · confidence 4
GLM-5.1
$2.15/M
Rank #104/162 · confidence 4
Step 3.7 Flash
winner$0.438/M
Rank #34/162 · confidence 4
GLM-5.1
$4.40/M
Rank #98/162 · confidence 4
Step 3.7 Flash
winner$1.15/M
Rank #42/162 · confidence 4
GLM-5.1
winner86.8%
Rank #34/187 · confidence 4
Step 3.7 Flash
80.9%
Rank #73/187 · confidence 4
GLM-5.1
winner28.0%
Rank #34/186 · confidence 4
Step 3.7 Flash
19.9%
Rank #57/186 · confidence 4
GLM-5.1
winner4.6
Rank #37/73 · confidence 2 · eval date 2026-04-07
Step 3.7 Flash
2.3
Rank #45/73 · confidence 1 · eval date 2026-05-29
GLM-5.1
62.3
Rank #55/89 · confidence 2 · eval date 2026-04-07
Step 3.7 Flash
winner63.7
Rank #50/89 · confidence 1 · eval date 2026-05-29
GLM-5.1
winner65.0
Rank #14/64 · confidence 2 · eval date 2026-04-07
Step 3.7 Flash
41.5
Rank #56/64 · confidence 1 · eval date 2026-05-29
GLM-5.1
winner58.4
Rank #14/37 · confidence 2 · eval date 2026-04-07
Step 3.7 Flash
56.3
Rank #22/37 · confidence 1 · eval date 2026-05-29
GLM-5.1
winner55.8
Rank #26/58 · confidence 2 · eval date 2026-04-07
Step 3.7 Flash
39.6
Rank #40/58 · confidence 1 · eval date 2026-05-29
GLM-5.1
winner43.8%
Rank #38/184 · confidence 4
Step 3.7 Flash
40.0%
Rank #68/184 · confidence 4
GLM-5.1
winner43.8
Rank #42/96 · confidence 2 · eval date 2026-04-07
Step 3.7 Flash
40.0
Rank #58/96 · confidence 1 · eval date 2026-05-29
GLM-5.1
winner40.2
Rank #27/99 · confidence 2 · eval date 2026-04-07
Step 3.7 Flash
30.3
Rank #58/99 · confidence 1 · eval date 2026-05-29
GLM-5.1
29.4
Rank #83/90 · confidence 2 · eval date 2026-04-07
Step 3.7 Flash
winner84.4
Rank #28/90 · confidence 1 · eval date 2026-05-29
GLM-5.1
winner28.0
Rank #35/96 · confidence 2 · eval date 2026-04-07
Step 3.7 Flash
19.9
Rank #53/96 · confidence 1 · eval date 2026-05-29
GLM-5.1
winner86.8
Rank #38/96 · confidence 2 · eval date 2026-04-07
Step 3.7 Flash
80.9
Rank #61/96 · confidence 1 · eval date 2026-05-29
GLM-5.1
24.2
Rank #62/90 · confidence 2 · eval date 2026-04-07
Step 3.7 Flash
winner25.4
Rank #54/90 · confidence 1 · eval date 2026-05-29
GLM-5.1
winner1309.0
Rank #9/65 · confidence 2 · eval date 2026-04-07
Step 3.7 Flash
1214.0
Rank #40/65 · confidence 1 · eval date 2026-05-29
GLM-5.1
winner76.3
Rank #13/86 · confidence 2 · eval date 2026-04-07
Step 3.7 Flash
67.3
Rank #46/86 · confidence 1 · eval date 2026-05-29
GLM-5.1
97.7
Rank #7/84 · confidence 2 · eval date 2026-04-07
Step 3.7 Flash
winner98.5
Rank #2/84 · confidence 1 · eval date 2026-05-29
GLM-5.1
62.3
Rank #10/28 · confidence 2 · eval date 2026-04-07
Step 3.7 Flash
winner67.1
Rank #6/28 · confidence 1 · eval date 2026-05-29
GLM-5.1
winner60.1
Rank #12/50 · confidence 2 · eval date 2026-04-07
Step 3.7 Flash
51.6
Rank #20/50 · confidence 1 · eval date 2026-05-29
GLM-5.1
68.0
Rank #17/24 · confidence 2 · eval date 2026-04-07
Step 3.7 Flash
winner75.8
Rank #15/24 · confidence 1 · eval date 2026-05-29
GLM-5.1
winner37.8
Rank #17/50 · confidence 2 · eval date 2026-04-07
Step 3.7 Flash
25.9
Rank #33/50 · confidence 1 · eval date 2026-05-29
GLM-5.1
winner1257.0
Rank #17/54 · confidence 2 · eval date 2026-04-07
Step 3.7 Flash
1017.0
Rank #33/54 · confidence 1 · eval date 2026-05-29
GLM-5.1
winner29.9
Rank #21/54 · confidence 2 · eval date 2026-04-07
Step 3.7 Flash
21.5
Rank #33/54 · confidence 1 · eval date 2026-05-29
GLM-5.1
winner63.5
Rank #23/45 · confidence 2 · eval date 2026-04-07
Step 3.7 Flash
59.5
Rank #26/45 · confidence 1 · eval date 2026-05-29
GLM-5.1
48.9
Rank #33/52 · confidence 2 · eval date 2026-04-07
Step 3.7 Flash
winner51.7
Rank #32/52 · confidence 1 · eval date 2026-05-29
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GLM-5.1 | Step 3.7 Flash |
|---|---|---|
Winner: GLM-5.1 | GLM-5.1 glm-5.1 Audit score 97 10010086100 | Step 3.7 Flash step-3.7-flash No audit yet |
Winner: GLM-5.1 | GLM-5.1 z-ai/glm-5.1 Audit score 78 70728088 | Step 3.7 Flash stepfun-ai/step-3.7-flash 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 | Step 3.7 Flash |
|---|---|---|
20 tests | GLM-5.1 speed / latency 82 tok/s / 9309ms input / output No data | Step 3.7 Flash speed / latency 119 tok/s / 15574ms input / output No data |
15 tests | GLM-5.1 speed / latency 58 tok/s / 14051ms input / output No data | Step 3.7 Flash speed / latency N/A / N/A input / output No data |
5 tests | GLM-5.1 speed / latency 148 tok/s / 5296ms input / output No data | Step 3.7 Flash speed / latency N/A / N/A input / output No data |
5 tests | GLM-5.1 speed / latency 45 tok/s / 10150ms input / output No data | Step 3.7 Flash 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 | Step 3.7 Flash speed / latency N/A / N/A input / output No data |
GLM-5.1 glm-5.1 speed / latency No data input / output $0/M/$0/M | Step 3.7 Flash step-3.7-flash speed / latency No data input / output $0/M | |
GLM-5.1 glm-5.1 speed / latency No data input / output $0/M/$0/M | Step 3.7 Flash step-3.7-flash speed / latency No data input / output $0/M | |
GLM-5.1 glm-5.1 speed / latency No data input / output $0/M/$0/M | Step 3.7 Flash step-3.7-flash speed / latency No data input / output $0.014/M | |
GLM-5.1 daipai/glm-5.1 speed / latency No data input / output $0.0020/request | Step 3.7 Flash daipai/step-3.7-flash speed / latency No data input / output $0.0020/request | |
GLM-5.1 ZhipuAI/GLM-5.1 speed / latency No data input / output $0.0068/request | Step 3.7 Flash stepfun-ai/Step-3.7-Flash speed / latency No data input / output $0.0048/request |
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 |
|---|
