Data points: 104
Model compare
The readout for GPT-4o 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 8 to 92.
Evidence depth
104 data points
Includes 19 benchmark rows, 0 audit samples, and 7 provider examples.
Selection signal
Start with GPT-5
The charts below split 26 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-4o and GPT-5: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | GPT-4o | GPT-5 |
|---|---|---|
| Overall leader | Contender | Leading |
| Weighted overall score | 8.0 pts | 92.0 pts |
| Benchmark category leads | 0 categories | 6 categories |
| Operational advantages | First-token latency, Free providers | Cheapest input price, Average speed, Provider coverage |
| Context window | 128K tokens | 400K tokens |
| Max output | 16.4K tokens | 128K tokens |
| Modalities | Input TextImageFile 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-4o | GPT-5 |
|---|---|---|
| Developer | OpenAI | OpenAI |
| Released | Nov 2024 | Aug 2025 |
| Parameters | No data | No data |
| Tokenizer | GPT | GPT |
| Knowledge cutoff | 2023-10-31 | 2024-09-30 |
| OpenRouter ID | openai/gpt-4o | openai/gpt-5 |
| References | No data | No data |
This report only uses LMSpeed data for GPT-4o and GPT-5: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
GPT-4o
GPT-4o has these operational advantages: First-token latency, Free providers.
GPT-5
GPT-5 is stronger in benchmark categories (Agents, Coding, Reasoning, Knowledge, Math) and operational dimensions (Cheapest input price, Average speed, 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-4o
43.2
Avg. score
GPT-5
51.9
GPT-5 leads by 6.8
GPT-5 leads by 2.8
GPT-5 leads by 11.4
GPT-5 leads by 0.2
GPT-5 leads by 19.4
No data
No data
GPT-5 leads by 11.6
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
GPT-4o
$2.50/M
Rank #131/162 · confidence 4
GPT-5
winner$1.25/M
Rank #107/162 · confidence 4
GPT-4o
$4.38/M
Rank #127/162 · confidence 4
GPT-5
winner$3.44/M
Rank #117/162 · confidence 4
GPT-4o
$10.00/M
Rank #120/162 · confidence 4
GPT-5
$10.00/M
Rank #120/162 · confidence 4
GPT-4o
74.8%
Rank #90/125 · confidence 4
GPT-5
winner80.6%
Rank #57/125 · confidence 4
GPT-4o
54.3%
Rank #156/188 · confidence 4
GPT-5
winner67.3%
Rank #121/188 · confidence 4
GPT-4o
3.3%
Rank #180/187 · confidence 4
GPT-5
winner5.4%
Rank #132/187 · confidence 4
GPT-4o
33.3
Rank #80/96 · confidence 1 · eval date 2024-05-13
GPT-5
winner42.9
Rank #46/96 · confidence 1 · eval date 2025-08-07
GPT-4o
30.9%
Rank #88/115 · confidence 4
GPT-5
winner55.8%
Rank #49/115 · confidence 4
GPT-4o
33.3%
Rank #120/185 · confidence 4
GPT-5
winner38.8%
Rank #83/185 · confidence 4
GPT-4o
15.0%
Rank #50/68 · confidence 4
GPT-5
winner36.7%
Rank #35/68 · confidence 4
GPT-4o
75.9%
Rank #56/74 · confidence 4
GPT-5
winner86.1%
Rank #42/74 · confidence 4
GPT-4o
19.7
Rank #75/90 · confidence 1 · eval date 2024-05-13
GPT-5
winner40.7
Rank #20/90 · confidence 1 · eval date 2025-08-07
GPT-4o
37.9
Rank #75/90 · confidence 1 · eval date 2024-05-13
GPT-5
winner82.1
Rank #31/90 · confidence 1 · eval date 2025-08-07
GPT-4o
3.3
Rank #94/96 · confidence 1 · eval date 2024-05-13
GPT-5
winner26.5
Rank #39/96 · confidence 1 · eval date 2025-08-07
GPT-4o
54.3
Rank #91/96 · confidence 1 · eval date 2024-05-13
GPT-5
winner85.4
Rank #45/96 · confidence 1 · eval date 2025-08-07
GPT-4o
11.2
Rank #90/99 · confidence 1 · eval date 2024-05-13
GPT-5
winner34.7
Rank #48/99 · confidence 1 · eval date 2025-08-07
GPT-4o
856.0
Rank #65/66 · confidence 1 · eval date 2024-05-13
GPT-5
winner1209.0
Rank #40/66 · confidence 1 · eval date 2025-08-07
GPT-4o
34.3
Rank #82/86 · confidence 1 · eval date 2024-05-13
GPT-5
winner73.1
Rank #29/86 · confidence 1 · eval date 2025-08-07
GPT-4o
25.1
Rank #75/84 · confidence 1 · eval date 2024-05-13
GPT-5
winner84.8
Rank #44/84 · 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-4o | 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-4o | GPT-5 |
|---|---|---|
82 tests | GPT-4o speed / latency 82 tok/s / 3100ms input / output No data | GPT-5 speed / latency N/A / N/A input / output No data |
20 tests | GPT-4o speed / latency N/A / N/A input / output No data | GPT-5 speed / latency 95 tok/s / 1234ms input / output No data |
20 tests | GPT-4o speed / latency 88 tok/s / 1593ms input / output No data | GPT-5 speed / latency N/A / N/A input / output No data |
15 tests | GPT-4o speed / latency 57 tok/s / 3381ms input / output No data | GPT-5 speed / latency 45 tok/s / 3704ms input / output No data |
10 tests | GPT-4o speed / latency 103 tok/s / 3580ms input / output No data | GPT-5 speed / latency 104 tok/s / 3804ms input / output No data |
GPT-4o gpt-4o speed / latency No data input / output $0/M/$0/M | GPT-5 gpt-5 speed / latency No data input / output $0/M | |
GPT-4o gpt-4o-2024-11-20 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 inputFile inputText outputTool callingStructured outputsJSON modeWeb search | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
|---|
