Data points: 82
Model compare
The readout for GPT-3.5 Turbo and GPT-4 Turbo, before the detailed comparison sheet.
Weighted outcome: GPT-4 Turbo. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
GPT-4 Turbo
GPT-4 Turbo has the higher weighted result; Model A / B score 42.7 to 57.3.
Evidence depth
82 data points
Includes 8 benchmark rows, 0 audit samples, and 6 provider examples.
Selection signal
Start with GPT-4 Turbo
The charts below split 14 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 GPT-3.5 Turbo and GPT-4 Turbo: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | GPT-3.5 Turbo | GPT-4 Turbo |
|---|---|---|
| Overall leader | Contender | Leading |
| Weighted overall score | 42.7 pts | 57.3 pts |
| Benchmark category leads | 1 categories | 2 categories |
| Operational advantages | Cheapest input price, Average speed, Free providers, Provider coverage | First-token latency |
| Context window | 16.4K tokens | 128K tokens |
| Max output | 4.1K tokens | 4.1K 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 | GPT-3.5 Turbo | GPT-4 Turbo |
|---|---|---|
| Developer | OpenAI | OpenAI |
| Released | Jan 2024 | Apr 2024 |
| Parameters | No data | No data |
| Tokenizer | GPT | GPT |
| Knowledge cutoff | 2021-09-30 | 2023-12-31 |
| OpenRouter ID | openai/gpt-3.5-turbo | openai/gpt-4-turbo |
| References | No data | No data |
This report only uses LMSpeed data for GPT-3.5 Turbo and GPT-4 Turbo: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
GPT-3.5 Turbo
GPT-3.5 Turbo is stronger in benchmark categories (Coding) and operational dimensions (Cheapest input price, Average speed, Free providers, Provider coverage).
GPT-4 Turbo
GPT-4 Turbo is stronger in benchmark categories (Reasoning, Math) and operational dimensions (First-token latency).
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
GPT-3.5 Turbo
40
Avg. score
GPT-4 Turbo
47
No data
GPT-3.5 Turbo leads by 4.8
GPT-4 Turbo leads by 9.8
GPT-4 Turbo
GPT-4 Turbo leads by 8.4
No data
No data
No data
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
GPT-3.5 Turbo
winner0.77 s
Rank #28/136 · confidence 4
GPT-4 Turbo
1.25 s
Rank #48/136 · confidence 4
GPT-3.5 Turbo
winner0.77 s
Rank #39/136 · confidence 4
GPT-4 Turbo
1.25 s
Rank #81/136 · confidence 4
GPT-3.5 Turbo
winner149.2 tok/s
Rank #42/136 · confidence 4
GPT-4 Turbo
39.4 tok/s
Rank #130/136 · confidence 4
GPT-3.5 Turbo
winner$1.50/M
Rank #53/162 · confidence 4
GPT-4 Turbo
$30.00/M
Rank #151/162 · confidence 4
GPT-3.5 Turbo
winner$0.750/M
Rank #59/162 · confidence 4
GPT-4 Turbo
$15.00/M
Rank #153/162 · confidence 4
GPT-3.5 Turbo
winner$0.500/M
Rank #69/162 · confidence 4
GPT-4 Turbo
$10.00/M
Rank #153/162 · confidence 4
GPT-3.5 Turbo
46.2%
Rank #124/125 · confidence 4
GPT-4 Turbo
winner69.4%
Rank #103/125 · confidence 4
GPT-3.5 Turbo
44.1%
Rank #69/72 · confidence 4
GPT-4 Turbo
winner73.7%
Rank #57/72 · confidence 4
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GPT-3.5 Turbo | GPT-4 Turbo |
|---|---|---|
| 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 | GPT-3.5 Turbo | GPT-4 Turbo |
|---|---|---|
15 tests | GPT-3.5 Turbo speed / latency 127 tok/s / 743ms input / output No data | GPT-4 Turbo speed / latency 28 tok/s / 731ms input / output No data |
5 tests | GPT-3.5 Turbo speed / latency N/A / N/A input / output No data | GPT-4 Turbo speed / latency 73 tok/s / 1218ms input / output No data |
0 tests | GPT-3.5 Turbo speed / latency N/A / N/A input / output No data | GPT-4 Turbo speed / latency N/A / N/A input / output No data |
0 tests | GPT-3.5 Turbo speed / latency N/A / N/A input / output No data | GPT-4 Turbo speed / latency N/A / N/A input / output No data |
0 tests | GPT-3.5 Turbo speed / latency N/A / N/A input / output No data | GPT-4 Turbo speed / latency N/A / N/A input / output No data |
GPT-3.5 Turbo gpt-3.5-turbo-0125 speed / latency No data input / output $0/request | GPT-4 Turbo gpt-4-turbo speed / latency No data input / output $0/request |
Weighted outcome: GPT-4 Turbo. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Output
| Features | Text inputText outputTool callingStructured outputsJSON mode | Text inputImage inputText outputTool callingStructured outputsJSON mode |
|---|
