Data points: 82
The readout for GLM-4.5 Air and GLM-5, before the detailed comparison sheet.
Decision read
GLM-5
GLM-5 currently has the stronger profile, with verified wins split 2 to 4.
Evidence depth
82 data points
Includes 8 benchmark rows, 0 audit samples, and 9 provider examples.
Selection signal
Start with GLM-5
The charts below split 17 high-signal samples across speed, scores, and audit health.
Model compare GLM-4.5 Air vs GLM-5glm-4-5-air-vs-glm-5 | Model A GLM-4.5 Air | Model B GLM-5 |
|---|---|---|
| Overall leader | Contender | Leading |
| Verified metric wins | 2 wins | 4 wins |
| Where it leads | Average speed, First-token latency | Cheapest input price, Free providers, Provider coverage, Recent tests |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | GLM-4.5 Air | GLM-5 |
|---|---|---|
| Input price | $0.170/M#10 |
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GLM-4.5 Air | GLM-5 |
|---|---|---|
| No completed audits are available from shared providers yet. | ||
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | GLM-4.5 Air | GLM-5 |
|---|---|---|
60 tests | GLM-4.5 Air speed / latency 77 tok/s / 8245ms input / output No data |
This report only uses LMSpeed data for GLM-4.5 Air and GLM-5: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | GLM-4.5 Air | GLM-5 |
|---|---|---|
| When to choose each model | GLM-4.5 Air GLM-4.5 Air is stronger when you prioritize Average speed, First-token latency. | GLM-5 GLM-5 is stronger when you prioritize Cheapest input price, Free providers, Provider coverage, Recent tests. |
TL;DR: GLM-5 leads across 82 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from GLM-4.5 Air vs GLM-5 into nearby model comparisons with enough verified LMSpeed data.
| Model metadata | GLM-4.5 Air exposes 131.1K tokens; notable signals: Text input, Text output, Tool calling, Structured outputs. | GLM-5 exposes 202.8K tokens; notable signals: Text input, Text output, Tool calling, Structured outputs. |
|---|---|---|
| Developer | Zhipu AI | Zhipu AI |
| Context window | 131.1K tokens | 202.8K tokens |
| Max output | 131.1K tokens | No data |
| Released | Jul 2025 | Feb 2026 |
| Modalities | Input Text Output Text | Input Text Output Text |
| Features | Text inputText outputTool callingStructured outputsJSON modeReasoning | Text inputText outputTool callingStructured outputsJSON modeReasoning |
| Parameters | No data | No data |
| Tokenizer | Other | Other |
| Knowledge cutoff | 2024-12-31 | No data |
| OpenRouter ID | z-ai/glm-4.5-air | z-ai/glm-5 |
| References | No data | No data |
| Output price | $0.980/M#16 | $3.20/M#29 |
|---|
| SciCode | 30.6%#90 | 46.2%#19 |
|---|
| Blended price | $0.372/M#20 | $1.55/M#47 |
|---|
| HLE | 6.8%#79 | 27.2%#22 |
|---|
| Time to first token | 1.65 s#62 | 0.84 s#25 |
|---|
| GPQA | 73.3%#74 | 82.0%#49 |
|---|
| Output speed | 82.9 tok/s#62 | 75.5 tok/s#70 |
|---|
GLM-5
speed / latency
37 tok/s / 26385ms
input / output
No data
SiliconFlow25 tests | GLM-4.5 Air speed / latency 86 tok/s / 387ms input / output No data | GLM-5 speed / latency 44 tok/s / 27770ms input / output No data |
|---|
OpenRouter10 tests | GLM-4.5 Air speed / latency 20 tok/s / 33054ms input / output No data | GLM-5 speed / latency N/A / N/A input / output No data |
|---|
Seamee API10 tests | GLM-4.5 Air speed / latency N/A / N/A input / output No data | GLM-5 speed / latency 41 tok/s / 18111ms input / output No data |
|---|
天云港模型开放平台10 tests | GLM-4.5 Air speed / latency 63 tok/s / 18555ms input / output No data | GLM-5 speed / latency 36 tok/s / 24627ms input / output No data |
|---|
GLM-4.5 Air glm-4.5-air speed / latency No data input / output $0/M / $0/M | GLM-5 glm-5-chat speed / latency No data input / output $0/M / $0/M |
GLM-4.5 Air z-ai/glm-4.5-air:free speed / latency No data input / output $0/M / $0/M | GLM-5 glm-5 speed / latency No data input / output $1.00/M / $3.20/M |
GLM-4.5 Air z-ai/glm-4.5-air:free speed / latency No data input / output $0.010/M / $0.010/M | GLM-5 glm-5-fast speed / latency No data input / output $0.010/M / $0.010/M |
GLM-4.5 Air glm-4.5-air speed / latency No data input / output $0.010/M / $0.010/M | GLM-5 glm-5 speed / latency No data input / output $0.010/M / $0.010/M |
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
