Data points: 82
The readout for GLM-4.5 and GPT-5, before the detailed comparison sheet.
Decision read
GPT-5
GPT-5 currently has the stronger profile, with verified wins split 1 to 5.
Evidence depth
82 data points
Includes 8 benchmark rows, 0 audit samples, and 10 provider examples.
Selection signal
Start with GPT-5
The charts below split 18 high-signal samples across speed, scores, and audit health.
Model compare GLM-4.5 vs GPT-5glm-4-5-vs-gpt-5 | Model A GLM-4.5 | Model B GPT-5 |
|---|---|---|
| Overall leader | Contender | Leading |
| Verified metric wins | 1 wins | 5 wins |
| Where it leads | Free providers | Cheapest input price, Average speed, First-token latency, Provider coverage, Recent tests |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | GLM-4.5 | GPT-5 |
|---|---|---|
| AIME | 87.3%#7 |
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GLM-4.5 | GPT-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 | GPT-5 |
|---|---|---|
20 tests | GLM-4.5 speed / latency N/A / N/A input / output No data | GPT-5 |
This report only uses LMSpeed data for GLM-4.5 and GPT-5: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | GLM-4.5 | GPT-5 |
|---|---|---|
| When to choose each model | GLM-4.5 GLM-4.5 is stronger when you prioritize Free providers. | GPT-5 GPT-5 is stronger when you prioritize Cheapest input price, Average speed, First-token latency, Provider coverage, Recent tests. |
TL;DR: GPT-5 leads across 82 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from GLM-4.5 vs GPT-5 into nearby model comparisons with enough verified LMSpeed data.
| Model metadata | GLM-4.5 exposes 131.1K tokens; notable signals: Text input, Text output, Tool calling, JSON mode. | GPT-5 exposes 128K tokens; notable signals: Text input, Image input, File input, Text output. |
|---|---|---|
| Developer | No data | OpenAI |
| Context window | 131.1K tokens | 128K tokens |
| Max output | 98.3K tokens | 16.4K tokens |
| Released | Jul 2025 | Aug 2025 |
| Modalities | Input Text Output Text | Input FileImageText Output Text |
| Features | Text inputText outputTool callingJSON modeReasoning | Text inputImage inputFile inputText outputStructured outputsJSON mode |
| Parameters | No data | No data |
| Tokenizer | Other | GPT |
| Knowledge cutoff | 2024-12-31 | 2024-09-30 |
| OpenRouter ID | z-ai/glm-4.5 | openai/gpt-5-chat |
| References | No data | No data |
| MATH-500 | 97.9%#10 | 99.4%#1 |
|---|
| MMLU-Pro | 83.5%#25 | 87.1%#7 |
|---|
| LiveCodeBench | 73.8%#26 | 84.6%#11 |
|---|
| Input price | $0.600/M#23 | $1.25/M#30 |
|---|
| HLE | 12.2%#62 | 26.5%#24 |
|---|
| Output price | $2.20/M#25 | $10.00/M#41 |
|---|
| GPQA | 78.2%#60 | 85.4%#31 |
|---|
speed / latency
95 tok/s / 1234ms
input / output
No data
EasyMore5 tests | GLM-4.5 speed / latency N/A / N/A input / output No data | GPT-5 speed / latency 46 tok/s / 6577ms input / output No data |
|---|
N1N5 tests | GLM-4.5 speed / latency N/A / N/A input / output No data | GPT-5 speed / latency 102 tok/s / 948ms input / output No data |
|---|
AAAI0 tests | GLM-4.5 speed / latency N/A / N/A input / output No data | GPT-5 speed / latency N/A / N/A input / output No data |
|---|
AI API0 tests | GLM-4.5 speed / latency N/A / N/A input / output No data | GPT-5 speed / latency N/A / N/A input / output No data |
|---|
GLM-4.5 ZhipuAI/GLM-4.5 speed / latency No data input / output $0/M / $0/M | GPT-5 gpt-5 speed / latency No data input / output $1.07/M / $8.56/M |
GLM-4.5 glm-4.5 speed / latency No data input / output $0.010/M / $0.010/M | GPT-5 gpt-5 speed / latency No data input / output $1.35/M / $10.80/M |
GLM-4.5 zai-org/GLM-4.5 speed / latency No data input / output $1.03/M / $1.03/M | GPT-5 gpt-5-2025-08-07 speed / latency No data input / output $0.034/M / $0.274/M |
GLM-4.5 glm-4.5 speed / latency No data input / output $0.041/M / $0.164/M | GPT-5 gpt-5-chat-latest speed / latency No data input / output $0.051/M / $0.411/M |
GLM-4.5 glm-4.5 speed / latency No data input / output $0.041/M / $0.151/M | GPT-5 gpt-5 speed / latency No data input / output $0.086/M / $0.685/M |
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
