Data points: 104
Model compare
The readout for GLM-5 and GPT-4o, before the detailed comparison sheet.
Weighted outcome: GLM-5. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
GLM-5
GLM-5 has the higher weighted result; Model A / B score 70.7 to 29.3.
Evidence depth
104 data points
Includes 19 benchmark rows, 0 audit samples, and 9 provider examples.
Selection signal
Start with GLM-5
The charts below split 28 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 and GPT-4o: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | GLM-5 | GPT-4o |
|---|---|---|
| Overall leader | Leading | Contender |
| Weighted overall score | 70.7 pts | 29.3 pts |
| Benchmark category leads | 5 categories | 1 categories |
| Operational advantages | Provider coverage | Cheapest input price, Average speed, First-token latency, Free providers |
| Context window | 204.8K tokens | 128K tokens |
| Max output | 131.1K tokens | 16.4K tokens |
| Modalities | Input Text Output Text | Input TextImageFile Output Text |
| Features | Text inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeWeb search |
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 | GPT-4o |
|---|---|---|
| Developer | Z.ai | OpenAI |
| Released | Feb 2026 | Nov 2024 |
| Parameters | No data | No data |
| Tokenizer | Other | GPT |
| Knowledge cutoff | No data | 2023-10-31 |
| OpenRouter ID | z-ai/glm-5 | openai/gpt-4o |
| References | No data | No data |
This report only uses LMSpeed data for GLM-5 and GPT-4o: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
GLM-5
GLM-5 is stronger in benchmark categories (Agents, Coding, Reasoning, Math, Instruction following) and operational dimensions (Provider coverage).
GPT-4o
GPT-4o is stronger in benchmark categories (Knowledge) and operational dimensions (Cheapest input price, Average speed, First-token latency, 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
47.8
Avg. score
GPT-4o
43.2
GLM-5 leads by 3.7
GLM-5 leads by 5.4
GLM-5 leads by 8.9
GPT-4o leads by 6.4
GLM-5 leads by 8.9
GLM-5
No data
GLM-5 leads by 11.1
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
GLM-5
winner63.0
Rank #25/84 · confidence 4 · eval date 2026-03-01
GPT-4o
43.0
Rank #76/84 · confidence 1 · eval date 2024-05-13
GLM-5
winner$3.20/M
Rank #89/162 · confidence 4
GPT-4o
$10.00/M
Rank #120/162 · confidence 4
GLM-5
winner$1.55/M
Rank #93/162 · confidence 4
GPT-4o
$4.38/M
Rank #127/162 · confidence 4
GLM-5
winner$1.00/M
Rank #98/162 · confidence 4
GPT-4o
$2.50/M
Rank #131/162 · confidence 4
GLM-5
winner85.7%
Rank #23/125 · confidence 4 · eval date 2026-03-01
GPT-4o
74.8%
Rank #90/125 · confidence 4
GLM-5
winner27.2%
Rank #38/187 · confidence 4
GPT-4o
3.3%
Rank #180/187 · confidence 4
GLM-5
winner82.0%
Rank #67/188 · confidence 4
GPT-4o
54.3%
Rank #156/188 · confidence 4
GLM-5
winner46.2%
Rank #32/185 · confidence 4
GPT-4o
33.3%
Rank #120/185 · confidence 4
GLM-5
winner46.2
Rank #36/96 · confidence 4 · eval date 2026-03-01
GPT-4o
33.3
Rank #80/96 · confidence 1 · eval date 2024-05-13
GLM-5
winner57.2
Rank #25/56 · confidence 4 · eval date 2026-03-01
GPT-4o
25.4
Rank #54/56 · confidence 1 · eval date 2024-05-13
GLM-5
winner16.4
Rank #31/47 · confidence 4 · eval date 2026-03-01
GPT-4o
0.3
Rank #47/47 · confidence 1 · eval date 2024-05-13
GLM-5
winner39.5
Rank #34/99 · confidence 4 · eval date 2026-03-01
GPT-4o
11.2
Rank #90/99 · confidence 1 · eval date 2024-05-13
GLM-5
winner27.2
Rank #37/96 · confidence 4 · eval date 2026-03-01
GPT-4o
3.3
Rank #94/96 · confidence 1 · eval date 2024-05-13
GLM-5
winner26.9
Rank #48/90 · confidence 4 · eval date 2026-03-01
GPT-4o
19.7
Rank #75/90 · confidence 1 · eval date 2024-05-13
GLM-5
winner82.0
Rank #56/96 · confidence 4 · eval date 2026-03-01
GPT-4o
54.3
Rank #91/96 · confidence 1 · eval date 2024-05-13
GLM-5
34.0
Rank #80/90 · confidence 4 · eval date 2026-03-01
GPT-4o
winner37.9
Rank #75/90 · confidence 1 · eval date 2024-05-13
GLM-5
winner1274.0
Rank #23/66 · confidence 4 · eval date 2026-03-01
GPT-4o
856.0
Rank #65/66 · confidence 1 · eval date 2024-05-13
GLM-5
winner72.3
Rank #33/86 · confidence 4 · eval date 2026-03-01
GPT-4o
34.3
Rank #82/86 · confidence 1 · eval date 2024-05-13
GLM-5
winner98.2
Rank #6/84 · confidence 4 · eval date 2026-03-01
GPT-4o
25.1
Rank #75/84 · confidence 1 · eval date 2024-05-13
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GLM-5 | GPT-4o |
|---|---|---|
| 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-5 | GPT-4o |
|---|---|---|
速创API20 tests | GLM-5 speed / latency N/A / N/A input / output No data | GPT-4o speed / latency 88 tok/s / 1593ms input / output No data |
CatClaw API10 tests | GLM-5 speed / latency N/A / N/A input / output No data | GPT-4o speed / latency 57 tok/s / 3381ms input / output No data |
Seamee API10 tests | GLM-5 speed / latency 41 tok/s / 18111ms input / output No data | GPT-4o speed / latency N/A / N/A input / output No data |
KFCV505 tests | GLM-5 speed / latency N/A / N/A input / output No data | GPT-4o speed / latency 48 tok/s / 13138ms input / output No data |
YUNWU API5 tests | GLM-5 speed / latency N/A / N/A input / output No data | GPT-4o speed / latency 58 tok/s / 2583ms input / output No data |
GLM-5 glm-5 speed / latency No data input / output $0.068/M/$0.219/M | GPT-4o gpt-4o speed / latency No data input / output $0.171/M/$0.685/M | |
GLM-5 glm-5 speed / latency No data input / output $37.50/M/$37.50/M | GPT-4o gpt-4o speed / latency No data input / output $0.025/M/$0.100/M | |
GLM-5 GLM-5 speed / latency No data input / output $0.040/request | GPT-4o gpt-4o-2024-05-13 speed / latency No data input / output $10.00/M/$30.00/M | |
GLM-5 GLM-5 speed / latency No data input / output $0.040/request | GPT-4o gpt-4o-2024-05-13 speed / latency No data input / output $10.00/M/$30.00/M |
Weighted outcome: GLM-5. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
