Data points: 77
The readout for GLM-5 and GLM-5.1, before the detailed comparison sheet.
Decision read
GLM-5.1
GLM-5.1 currently has the stronger profile, with verified wins split 0 to 3.
Evidence depth
77 data points
Includes 8 benchmark rows, 1 audit samples, and 9 provider examples.
Selection signal
Start with GLM-5.1
The charts below split 18 high-signal samples across speed, scores, and audit health.
Model compare GLM-5 vs GLM-5.1glm-5-vs-glm-5-1 | Model A GLM-5 | Model B GLM-5.1 |
|---|---|---|
| Overall leader | Contender | Leading |
| Verified metric wins | 0 wins | 3 wins |
| Where it leads | No data | Average speed, First-token latency, Free providers |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | GLM-5 | GLM-5.1 |
|---|---|---|
| HLE | 27.2%#22 |
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GLM-5 | GLM-5.1 |
|---|---|---|
Winner: GLM-5.1 | GLM-5 glm-5 No audit yet | GLM-5.1 glm-5.1-free Audit score |
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | GLM-5 | GLM-5.1 |
|---|---|---|
90 tests | GLM-5 speed / latency 37 tok/s / 26385ms input / output No data |
This report only uses LMSpeed data for GLM-5 and GLM-5.1: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | GLM-5 | GLM-5.1 |
|---|---|---|
| When to choose each model | GLM-5 GLM-5 does not clearly lead on the verified metrics here, so check provider-specific pricing before choosing. | GLM-5.1 GLM-5.1 is stronger when you prioritize Average speed, First-token latency, Free providers. |
TL;DR: GLM-5.1 leads across 77 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from GLM-5 vs GLM-5.1 into nearby model comparisons with enough verified LMSpeed data.
| Model metadata | GLM-5 exposes 202.8K tokens; notable signals: Text input, Text output, Tool calling, Structured outputs. | No OpenRouter metadata is available yet for this model. |
|---|---|---|
| Developer | Zhipu AI | Zhipu AI |
| Context window | 202.8K tokens | No data |
| Max output | No data | No data |
| Released | Feb 2026 | No data |
| Modalities | Input Text Output Text | No data |
| Features | Text inputText outputTool callingStructured outputsJSON modeReasoning | None listed |
| Parameters | No data | No data |
| Tokenizer | Other | No data |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | z-ai/glm-5 | No data |
| References | No data | No data |
| SciCode | 46.2%#19 | 43.8%#26 |
|---|
| GPQA | 82.0%#49 | 86.8%#22 |
|---|
| Time to first token | 0.84 s#25 | 0.90 s#31 |
|---|
| Input price | $1.00/M#26 | $1.40/M#32 |
|---|
| Output price | $3.20/M#29 | $4.40/M#33 |
|---|
| Blended price | $1.55/M#47 | $2.15/M#53 |
|---|
| Output speed | 75.5 tok/s#70 | 71.0 tok/s#72 |
|---|
79
GLM-5.1
speed / latency
35 tok/s / 17508ms
input / output
No data
EdgeFN API30 tests | GLM-5 speed / latency 57 tok/s / 16879ms input / output No data | GLM-5.1 speed / latency N/A / N/A input / output No data |
|---|
SiliconFlow30 tests | GLM-5 speed / latency 44 tok/s / 27770ms input / output No data | GLM-5.1 speed / latency 50 tok/s / 9040ms input / output No data |
|---|
Ollama25 tests | GLM-5 speed / latency 64 tok/s / 21679ms input / output No data | GLM-5.1 speed / latency 62 tok/s / 25980ms input / output No data |
|---|
OpenRouter15 tests | GLM-5 speed / latency N/A / N/A input / output No data | GLM-5.1 speed / latency 58 tok/s / 14051ms input / output No data |
|---|
GLM-5 glm-5 speed / latency No data input / output $0.750/M / $2.40/M | GLM-5.1 glm-5.1 speed / latency No data input / output $0/M / $0/M |
GLM-5 ZhipuAI/GLM-5 speed / latency No data input / output $75.00/M / $75.00/M | GLM-5.1 GLM-5.1 speed / latency No data input / output $0/M / $0/M |
GLM-5 glm-5 speed / latency No data input / output $0/M / $0/M | GLM-5.1 z-ai/glm-5.1 speed / latency No data input / output $1.00/M / $1.00/M |
GLM-5 glm-5 speed / latency No data input / output $0/M / $0/M | GLM-5.1 glm-5.1-chat speed / latency No data input / output $0/M / $0/M |
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
