Data points: 67
The readout for GLM-5.1 and GLM-5.2, before the detailed comparison sheet.
Decision read
GLM-5.1
GLM-5.1 currently has the stronger profile, with verified wins split 5 to 1.
Evidence depth
67 data points
Includes 0 benchmark rows, 1 audit samples, and 8 provider examples.
Selection signal
Start with GLM-5.1
The charts below split 9 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.
Model compare GLM-5.1 vs GLM-5.2glm-5-1-vs-glm-5-2 | Model A GLM-5.1 | Model B GLM-5.2 |
|---|---|---|
| Overall leader | Leading | Contender |
| Verified metric wins | 5 wins | 1 wins |
| Where it leads | Cheapest input price, First-token latency, Free providers, Provider coverage, Recent tests | Average speed |
| Model metadata | No OpenRouter metadata is available yet for this model. | GLM-5.2 exposes 1.0M tokens; notable signals: Text input, Text output, Tool calling, Structured outputs. |
| Developer | Zhipu AI | Zhipu AI |
| Context window | No data | 1.0M tokens |
| Max output | No data | 262.1K tokens |
| Released | No data | Jun 2026 |
| Modalities | No data | Input Text Output Text |
| Features | None listed | Text inputText outputTool callingStructured outputsJSON modeReasoning |
| Parameters | No data | No data |
| Tokenizer | No data | Other |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | No data | z-ai/glm-5.2 |
| References | No data | No data |
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
67
Avg. score
GLM-5.2
-
Selected category
Agents
GLM-5.1
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-5.1 | GLM-5.2 |
|---|---|---|
VSLLMWinner: GLM-5.1 | GLM-5.1 glm-5.1-free Audit score 81 727280100 | GLM-5.2 glm-5.2 Audit score 79 698463100 |
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | GLM-5.1 | GLM-5.2 |
|---|---|---|
OpenRouter15 tests | GLM-5.1 speed / latency 58 tok/s / 14051ms input / output No data | GLM-5.2 speed / latency N/A / N/A input / output No data |
天云港模型开放平台15 tests | GLM-5.1 speed / latency 40 tok/s / 17425ms input / output No data | GLM-5.2 speed / latency 47 tok/s / 15698ms input / output No data |
SiliconFlow10 tests | GLM-5.1 speed / latency 50 tok/s / 9040ms input / output No data | GLM-5.2 speed / latency N/A / N/A input / output No data |
Tokeness10 tests | GLM-5.1 speed / latency 74 tok/s / 6761ms input / output No data | GLM-5.2 speed / latency N/A / N/A input / output No data |
ChooseC API5 tests | GLM-5.1 speed / latency 57 tok/s / 1182ms input / output No data | GLM-5.2 speed / latency N/A / N/A input / output No data |
GLM-5.1 glm-5.1-chat speed / latency No data input / output $0/M / $0/M | GLM-5.2 glm-5.2 speed / latency No data input / output $0/M / $0/M | |
GLM-5.1 glm-5.1 speed / latency No data input / output $0.036/M / $0.036/M | GLM-5.2 glm-5.2 speed / latency No data input / output $0.036/M / $0.036/M | |
GLM-5.1 glm-5.1 speed / latency No data input / output $0.010/M / $0.058/M | GLM-5.2 glm-5.2 speed / latency No data input / output $0.027/M / $0.027/M |
This report only uses LMSpeed data for GLM-5.1 and GLM-5.2: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | GLM-5.1 | GLM-5.2 |
|---|---|---|
| When to choose each model | GLM-5.1 GLM-5.1 is stronger when you prioritize Cheapest input price, First-token latency, Free providers, Provider coverage, Recent tests. | GLM-5.2 GLM-5.2 is stronger when you prioritize Average speed. |
TL;DR: GLM-5.1 leads across 67 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from GLM-5.1 vs GLM-5.2 into nearby model comparisons with enough verified LMSpeed data.
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
