Data points: 105
Model compare
The readout for GLM-4.6 and GPT-4o, before the detailed comparison sheet.
Weighted outcome: GLM-4.6. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
GLM-4.6
GLM-4.6 has the higher weighted result; Model A / B score 53.3 to 46.7.
Evidence depth
105 data points
Includes 19 benchmark rows, 0 audit samples, and 9 provider examples.
Selection signal
Start with GLM-4.6
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-4.6 and GPT-4o: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | GLM-4.6 | GPT-4o |
|---|---|---|
| Overall leader | Leading | Contender |
| Weighted overall score | 53.3 pts | 46.7 pts |
| Benchmark category leads | 4 categories | 2 categories |
| Operational advantages | No data | Cheapest input price, Average speed, First-token latency, Free providers, Provider coverage |
| Context window | 204.8K tokens | 128K tokens |
| Max output | 131.1K tokens | 16.4K tokens |
| Modalities | Input Text Output Text | Input Text |
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-4.6 | GPT-4o |
|---|---|---|
| Developer | Z.ai | OpenAI |
| Released | Sep 2025 | Nov 2024 |
| Parameters | No data | No data |
| Tokenizer | Other | GPT |
| Knowledge cutoff | 2025-03-31 | 2023-10-31 |
| OpenRouter ID | z-ai/glm-4.6 | openai/gpt-4o |
| References | No data | No data |
This report only uses LMSpeed data for GLM-4.6 and GPT-4o: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
GLM-4.6
GLM-4.6 leads these benchmark categories: Agents, Reasoning, Math, Instruction following.
GPT-4o
GPT-4o is stronger in benchmark categories (Coding, Knowledge) and operational dimensions (Cheapest input price, Average speed, First-token latency, Free providers, Provider coverage).
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-4.6
44.2
Avg. score
GPT-4o
43.2
GLM-4.6 leads by 9.8
GPT-4o leads by 4.4
GLM-4.6 leads by 2.6
GPT-4o leads by 5.3
GLM-4.6 leads by 2.6
No data
No data
GLM-4.6 leads by 0.8
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
GLM-4.6
winner45.0
Rank #68/84 · confidence 1 · eval date 2025-09-01
GPT-4o
43.0
Rank #76/84 · confidence 1 · eval date 2024-05-13
GLM-4.6
winner$2.20/M
Rank #68/162 · confidence 4
GPT-4o
$10.00/M
Rank #120/162 · confidence 4
GLM-4.6
winner$0.963/M
Rank #73/162 · confidence 4
GPT-4o
$4.38/M
Rank #127/162 · confidence 4
GLM-4.6
winner$0.550/M
Rank #76/162 · confidence 4
GPT-4o
$2.50/M
Rank #131/162 · confidence 4
GLM-4.6
winner82.9%
Rank #42/125 · confidence 4
GPT-4o
74.8%
Rank #90/125 · confidence 4
GLM-4.6
winner13.3%
Rank #78/187 · confidence 4
GPT-4o
3.3%
Rank #180/187 · confidence 4
GLM-4.6
winner78.0%
Rank #83/188 · confidence 4
GPT-4o
54.3%
Rank #156/188 · confidence 4
GLM-4.6
winner69.5%
Rank #30/115 · confidence 4
GPT-4o
30.9%
Rank #88/115 · confidence 4
GLM-4.6
33.1
Rank #81/96 · confidence 1 · eval date 2025-09-01
GPT-4o
winner33.3
Rank #80/96 · confidence 1 · eval date 2024-05-13
GLM-4.6
winner38.4%
Rank #87/185 · confidence 4
GPT-4o
33.3%
Rank #120/185 · confidence 4
GLM-4.6
winner3.8
Rank #40/47 · confidence 1 · eval date 2025-09-01
GPT-4o
0.3
Rank #47/47 · confidence 1 · eval date 2024-05-13
GLM-4.6
winner27.7
Rank #48/56 · confidence 1 · eval date 2025-09-01
GPT-4o
25.4
Rank #54/56 · confidence 1 · eval date 2024-05-13
GLM-4.6
winner66.1
Rank #56/90 · confidence 1 · eval date 2025-09-01
GPT-4o
37.9
Rank #75/90 · confidence 1 · eval date 2024-05-13
GLM-4.6
winner23.0
Rank #70/99 · confidence 1 · eval date 2025-09-01
GPT-4o
11.2
Rank #90/99 · confidence 1 · eval date 2024-05-13
GLM-4.6
winner20.8
Rank #73/90 · confidence 1 · eval date 2025-09-01
GPT-4o
19.7
Rank #75/90 · confidence 1 · eval date 2024-05-13
GLM-4.6
winner5.2
Rank #78/96 · confidence 1 · eval date 2025-09-01
GPT-4o
3.3
Rank #94/96 · confidence 1 · eval date 2024-05-13
GLM-4.6
winner63.2
Rank #83/96 · confidence 1 · eval date 2025-09-01
GPT-4o
54.3
Rank #91/96 · confidence 1 · eval date 2024-05-13
GLM-4.6
winner36.7
Rank #78/86 · confidence 1 · eval date 2025-09-01
GPT-4o
34.3
Rank #82/86 · confidence 1 · eval date 2024-05-13
GLM-4.6
winner76.9
Rank #57/84 · confidence 1 · eval date 2025-09-01
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-4.6 | 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-4.6 | GPT-4o |
|---|---|---|
20 tests | GLM-4.6 speed / latency N/A / N/A input / output No data | GPT-4o speed / latency 88 tok/s / 1593ms input / output No data |
5 tests | GLM-4.6 speed / latency N/A / N/A input / output No data | GPT-4o speed / latency 48 tok/s / 13138ms input / output No data |
5 tests | GLM-4.6 speed / latency 56 tok/s / 1357ms input / output No data | GPT-4o speed / latency N/A / N/A input / output No data |
5 tests | GLM-4.6 speed / latency N/A / N/A input / output No data | GPT-4o speed / latency 58 tok/s / 2583ms input / output No data |
3 tests | GLM-4.6 speed / latency N/A / N/A input / output No data | GPT-4o speed / latency 40 tok/s / 2993ms input / output No data |
GLM-4.6 glm-4.6 speed / latency No data input / output $0.041/M/$0.151/M | GPT-4o gpt-4o speed / latency No data input / output $0.171/M | |
GLM-4.6 GLM-4.6 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 | |
GLM-4.6 GLM-4.6 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 | |
GLM-4.6 glm-4.6 speed / latency No data input / output $0.080/M/$0.320/M | GPT-4o gpt-4o-all speed / latency No data input / output $30.00/M |
Weighted outcome: GLM-4.6. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Output
| Features | Text inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeWeb search |
|---|
