Data points: 78
Model compare
The readout for GPT-3.5 Turbo and GPT-4, before the detailed comparison sheet.
Weighted outcome: GPT-4. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
GPT-4
GPT-4 has the higher weighted result; Model A / B score 8 to 92.
Evidence depth
78 data points
Includes 6 benchmark rows, 0 audit samples, and 6 provider examples.
Selection signal
Start with GPT-4
The charts below split 12 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: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | GPT-3.5 Turbo | GPT-4 |
|---|---|---|
| Overall leader | Contender | Leading |
| Weighted overall score | 8.0 pts | 92.0 pts |
| Benchmark category leads | 0 categories | 1 categories |
| Operational advantages | Average speed, Provider coverage | Cheapest input price, First-token latency, Free providers |
| Context window | 16.4K tokens | 8.2K 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 |
|---|---|---|
| Developer | OpenAI | OpenAI |
| Released | Jan 2024 | May 2023 |
| Parameters | No data | No data |
| Tokenizer | GPT | GPT |
| Knowledge cutoff | 2021-09-30 | 2021-09-30 |
| OpenRouter ID | openai/gpt-3.5-turbo | openai/gpt-4 |
| References | No data | No data |
This report only uses LMSpeed data for GPT-3.5 Turbo and GPT-4: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
GPT-3.5 Turbo
GPT-3.5 Turbo has these operational advantages: Average speed, Provider coverage.
GPT-4
GPT-4 is stronger in benchmark categories (Coding) and operational dimensions (Cheapest input price, 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
GPT-3.5 Turbo
40
Avg. score
GPT-4
49.5
No data
GPT-4 leads by 0.6
GPT-3.5 Turbo
No data
GPT-3.5 Turbo
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
winner0.70 s
Rank #25/139 · confidence 4
GPT-4
0.87 s
Rank #29/139 · confidence 4
GPT-3.5 Turbo
winner0.70 s
Rank #34/139 · confidence 4
GPT-4
0.87 s
Rank #44/139 · confidence 4
GPT-3.5 Turbo
winner138.2 tok/s
Rank #39/139 · confidence 4
GPT-4
37.0 tok/s
Rank #130/139 · confidence 4
GPT-3.5 Turbo
winner$1.50/M
Rank #54/163 · confidence 4
GPT-4
$60.00/M
Rank #156/163 · confidence 4
GPT-3.5 Turbo
winner$0.750/M
Rank #60/163 · confidence 4
GPT-4
$37.50/M
Rank #161/163 · confidence 4
GPT-3.5 Turbo
winner$0.500/M
Rank #70/163 · confidence 4
GPT-4
$30.00/M
Rank #161/163 · 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 |
|---|---|---|
| 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 |
|---|---|---|
15 tests | GPT-3.5 Turbo speed / latency 127 tok/s / 743ms input / output No data | GPT-4 speed / latency 42 tok/s / 819ms input / output No data |
9 tests | GPT-3.5 Turbo speed / latency 140 tok/s / 460ms input / output No data | GPT-4 speed / latency 28 tok/s / 668ms input / output No data |
0 tests | GPT-3.5 Turbo speed / latency N/A / N/A input / output No data | GPT-4 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 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 speed / latency N/A / N/A input / output No data |
GPT-3.5 Turbo gpt-3.5-turbo-16k speed / latency No data input / output $0/request | GPT-4 gpt-4-32k speed / latency No data input / output $0/request |
Weighted outcome: GPT-4. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Output
| Features | Text inputText outputTool callingStructured outputsJSON mode | Text inputText outputTool callingStructured outputsJSON mode |
|---|
