Data points: 92
Model compare
The readout for GPT-4 Turbo and GPT-5, before the detailed comparison sheet.
Weighted outcome: GPT-5. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
GPT-5
GPT-5 has the higher weighted result; Model A / B score 24 to 76.
Evidence depth
92 data points
Includes 13 benchmark rows, 0 audit samples, and 6 provider examples.
Selection signal
Start with GPT-5
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 GPT-4 Turbo and GPT-5: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | GPT-4 Turbo | GPT-5 |
|---|---|---|
| Overall leader | Contender | Leading |
| Weighted overall score | 24.0 pts | 76.0 pts |
| Benchmark category leads | 1 categories | 3 categories |
| Operational advantages | First-token latency | Cheapest input price, Average speed, Free providers, Provider coverage |
| Context window | 128K tokens | 400K tokens |
| Max output | 4.1K tokens | 128K tokens |
| Modalities | Input TextImage Output 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-4 Turbo | GPT-5 |
|---|---|---|
| Developer | OpenAI | OpenAI |
| Released | Apr 2024 | Aug 2025 |
| Parameters | No data | No data |
| Tokenizer | GPT | GPT |
| Knowledge cutoff | 2023-12-31 | 2024-09-30 |
| OpenRouter ID | openai/gpt-4-turbo | openai/gpt-5 |
| References | No data | No data |
This report only uses LMSpeed data for GPT-4 Turbo and GPT-5: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
GPT-4 Turbo
GPT-4 Turbo is stronger in benchmark categories (Knowledge) and operational dimensions (First-token latency).
GPT-5
GPT-5 is stronger in benchmark categories (Coding, Reasoning, Math) and operational dimensions (Cheapest input price, Average speed, 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
GPT-4 Turbo
46.8
Avg. score
GPT-5
51.9
GPT-5
GPT-5 leads by 5.5
GPT-5 leads by 8.4
GPT-4 Turbo leads by 4.5
GPT-5 leads by 15.8
No data
No data
GPT-5
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
GPT-4 Turbo
$10.00/M
Rank #153/162 · confidence 4
GPT-5
winner$1.25/M
Rank #107/162 · confidence 4
GPT-4 Turbo
$15.00/M
Rank #153/162 · confidence 4
GPT-5
winner$3.44/M
Rank #117/162 · confidence 4
GPT-4 Turbo
$30.00/M
Rank #151/162 · confidence 4
GPT-5
winner$10.00/M
Rank #120/162 · confidence 4
GPT-4 Turbo
69.4%
Rank #103/125 · confidence 4
GPT-5
winner80.6%
Rank #57/125 · confidence 4
GPT-4 Turbo
3.3%
Rank #180/187 · confidence 4
GPT-5
winner5.4%
Rank #132/187 · confidence 4
GPT-4 Turbo
21.5
Rank #51/59 · confidence 1 · eval date 2023-11-06
GPT-5
winner37.8
Rank #41/59 · confidence 1 · eval date 2025-08-07
GPT-4 Turbo
31.9
Rank #84/96 · confidence 1 · eval date 2023-11-06
GPT-5
winner42.9
Rank #46/96 · confidence 1 · eval date 2025-08-07
GPT-4 Turbo
29.1%
Rank #91/115 · confidence 4
GPT-5
winner55.8%
Rank #49/115 · confidence 4
GPT-4 Turbo
31.9%
Rank #128/185 · confidence 4
GPT-5
winner38.8%
Rank #83/185 · confidence 4
GPT-4 Turbo
15.0%
Rank #50/68 · confidence 4
GPT-5
winner36.7%
Rank #35/68 · confidence 4
GPT-4 Turbo
73.7%
Rank #58/74 · confidence 4
GPT-5
winner86.1%
Rank #42/74 · confidence 4
GPT-4 Turbo
3.3
Rank #94/96 · confidence 1 · eval date 2023-11-06
GPT-5
winner26.5
Rank #39/96 · confidence 1 · eval date 2025-08-07
GPT-4 Turbo
7.9
Rank #96/99 · confidence 1 · eval date 2023-11-06
GPT-5
winner34.7
Rank #48/99 · confidence 1 · eval date 2025-08-07
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GPT-4 Turbo | GPT-5 |
|---|---|---|
| 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-4 Turbo | GPT-5 |
|---|---|---|
20 tests | GPT-4 Turbo speed / latency N/A / N/A input / output No data | GPT-5 speed / latency 95 tok/s / 1234ms input / output No data |
5 tests | GPT-4 Turbo speed / latency N/A / N/A input / output No data | GPT-5 speed / latency 102 tok/s / 948ms input / output No data |
5 tests | GPT-4 Turbo speed / latency 73 tok/s / 1218ms input / output No data | GPT-5 speed / latency N/A / N/A input / output No data |
5 tests | GPT-4 Turbo speed / latency N/A / N/A input / output No data | GPT-5 speed / latency 58 tok/s / 17419ms input / output No data |
2 tests | GPT-4 Turbo speed / latency N/A / N/A input / output No data | GPT-5 speed / latency 139 tok/s / 12690ms input / output No data |
GPT-4 Turbo gpt-4-turbo-2024-04-09 speed / latency No data input / output $0/request | GPT-5 gpt-5-chat-latest speed / latency No data input / output $0/request |
Weighted outcome: GPT-5. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Input
Output
| Features | Text inputImage inputText outputTool callingStructured outputsJSON mode | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
|---|
