Data points: 89
Model compare
The readout for GLM-5 Turbo and GPT-4o, before the detailed comparison sheet.
Weighted outcome: GLM-5 Turbo. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
GLM-5 Turbo
GLM-5 Turbo has the higher weighted result; Model A / B score 64 to 36.
Evidence depth
89 data points
Includes 12 benchmark rows, 0 audit samples, and 7 provider examples.
Selection signal
Start with GLM-5 Turbo
The charts below split 19 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 Turbo and GPT-4o: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | GLM-5 Turbo | GPT-4o |
|---|---|---|
| Overall leader | Leading | Contender |
| Weighted overall score | 64.0 pts | 36.0 pts |
| Benchmark category leads | 4 categories | 1 categories |
| Operational advantages | No data | Cheapest input price, Average speed, First-token latency, Free providers, Provider coverage |
| Context window | 202.8K 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-5 Turbo | GPT-4o |
|---|---|---|
| Developer | Z.ai | OpenAI |
| Released | Mar 2026 | Nov 2024 |
| Parameters | No data | No data |
| Tokenizer | Other | GPT |
| Knowledge cutoff | No data | 2023-10-31 |
| OpenRouter ID | z-ai/glm-5-turbo | openai/gpt-4o |
| References | No data | No data |
This report only uses LMSpeed data for GLM-5 Turbo and GPT-4o: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
GLM-5 Turbo
GLM-5 Turbo leads these benchmark categories: Agents, Coding, Reasoning, Instruction following.
GPT-4o
GPT-4o is stronger in benchmark categories (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-5 Turbo
52.6
Avg. score
GPT-4o
43.2
GLM-5 Turbo leads by 13.4
GLM-5 Turbo leads by 9.4
GLM-5 Turbo leads by 11.6
GPT-4o leads by 1.1
GPT-4o
No data
No data
GLM-5 Turbo leads by 12.5
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
GLM-5 Turbo
winner25.4%
Rank #45/187 · confidence 4
GPT-4o
3.3%
Rank #180/187 · confidence 4
GLM-5 Turbo
winner84.7%
Rank #47/188 · confidence 4
GPT-4o
54.3%
Rank #156/188 · confidence 4
GLM-5 Turbo
winner43.6%
Rank #40/185 · confidence 4
GPT-4o
33.3%
Rank #120/185 · confidence 4
GLM-5 Turbo
winner43.6
Rank #43/96 · confidence 1 · eval date 2026-03-01
GPT-4o
33.3
Rank #80/96 · confidence 1 · eval date 2024-05-13
GLM-5 Turbo
winner38.1
Rank #38/99 · confidence 1 · eval date 2026-03-01
GPT-4o
11.2
Rank #90/99 · confidence 1 · eval date 2024-05-13
GLM-5 Turbo
winner25.4
Rank #43/96 · confidence 1 · eval date 2026-03-01
GPT-4o
3.3
Rank #94/96 · confidence 1 · eval date 2024-05-13
GLM-5 Turbo
winner84.7
Rank #46/96 · confidence 1 · eval date 2026-03-01
GPT-4o
54.3
Rank #91/96 · confidence 1 · eval date 2024-05-13
GLM-5 Turbo
winner29.0
Rank #46/90 · confidence 1 · eval date 2026-03-01
GPT-4o
19.7
Rank #75/90 · confidence 1 · eval date 2024-05-13
GLM-5 Turbo
winner62.2
Rank #59/90 · confidence 1 · eval date 2026-03-01
GPT-4o
37.9
Rank #75/90 · confidence 1 · eval date 2024-05-13
GLM-5 Turbo
winner1296.0
Rank #16/66 · confidence 1 · eval date 2026-03-01
GPT-4o
856.0
Rank #65/66 · confidence 1 · eval date 2024-05-13
GLM-5 Turbo
winner73.2
Rank #28/86 · confidence 1 · eval date 2026-03-01
GPT-4o
34.3
Rank #82/86 · confidence 1 · eval date 2024-05-13
GLM-5 Turbo
winner98.5
Rank #2/84 · confidence 1 · 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 Turbo | 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 Turbo | GPT-4o |
|---|---|---|
5 tests | GLM-5 Turbo glm-5-turbo speed / latency N/A / N/A input / output $0.514/M/$2.26/M | GPT-4o gpt-4o-2024-05-13 speed / latency 48 tok/s / 13138ms input / output $5.14/M/$15.41/M |
0 tests | GLM-5 Turbo speed / latency N/A / N/A input / output No data | GPT-4o speed / latency N/A / N/A input / output No data |
0 tests | GLM-5 Turbo speed / latency N/A / N/A input / output No data | GPT-4o speed / latency N/A / N/A input / output No data |
0 tests | GLM-5 Turbo speed / latency N/A / N/A input / output No data | GPT-4o speed / latency N/A / N/A input / output No data |
0 tests | GLM-5 Turbo glm-5-turbo speed / latency N/A / N/A input / output $0.551/M/$2.34/M | GPT-4o openai/gpt-4o speed / latency N/A / N/A input / output $0.405/M |
GLM-5 Turbo glm-5-turbo speed / latency No data input / output $0.082/M/$0.274/M | GPT-4o gpt-4o speed / latency No data input / output $0.171/M | |
GLM-5 Turbo glm-5-turbo speed / latency No data input / output $0.671/M/$2.49/M | GPT-4o gpt-4o-2024-05-13 speed / latency No data input / output $5.00/M |
Weighted outcome: GLM-5 Turbo. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Output
| Features | Text inputText outputTool callingJSON modeReasoning | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeWeb search |
|---|
