Data points: 113
Model compare
The readout for GPT-4.1 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 17.3 to 82.7.
Evidence depth
113 data points
Includes 21 benchmark rows, 1 audit samples, and 7 provider examples.
Selection signal
Start with GPT-5
The charts below split 29 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-4.1 and GPT-5: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | GPT-4.1 | GPT-5 |
|---|---|---|
| Overall leader | Contender | Leading |
| Weighted overall score | 17.3 pts | 82.7 pts |
| Benchmark category leads | 1 categories | 5 categories |
| Operational advantages | First-token latency | Cheapest input price, Average speed, Free providers, Provider coverage |
| Context window | 1.0M tokens | 400K tokens |
| Max output | 32.8K tokens | 128K tokens |
| Modalities | Input ImageTextFile 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-4.1 | GPT-5 |
|---|---|---|
| Developer | OpenAI | OpenAI |
| Released | Apr 2025 | Aug 2025 |
| Parameters | No data | No data |
| Tokenizer | GPT | GPT |
| Knowledge cutoff | 2024-06-30 | 2024-09-30 |
| OpenRouter ID | openai/gpt-4.1 | openai/gpt-5 |
| References | No data | No data |
This report only uses LMSpeed data for GPT-4.1 and GPT-5: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
GPT-4.1
GPT-4.1 is stronger in benchmark categories (Knowledge) and operational dimensions (First-token latency).
GPT-5
GPT-5 is stronger in benchmark categories (Agents, Coding, Reasoning, Math, Instruction following) 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-4.1
46
Avg. score
GPT-5
51.9
GPT-5 leads by 5.8
GPT-5 leads by 10.5
GPT-5 leads by 2.7
GPT-4.1 leads by 7.1
GPT-5 leads by 12.5
No data
No data
GPT-5 leads by 11.0
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
GPT-4.1
$2.00/M
Rank #123/162 · confidence 4
GPT-5
winner$1.25/M
Rank #107/162 · confidence 4
GPT-4.1
winner$8.00/M
Rank #114/162 · confidence 4
GPT-5
$10.00/M
Rank #120/162 · confidence 4
GPT-4.1
$3.50/M
Rank #123/162 · confidence 4
GPT-5
winner$3.44/M
Rank #117/162 · confidence 4
GPT-4.1
61.0
Rank #56/89 · confidence 1 · eval date 2025-04-14
GPT-5
winner75.6
Rank #2/89 · confidence 1 · eval date 2025-08-07
GPT-4.1
80.6%
Rank #57/125 · confidence 4
GPT-5
80.6%
Rank #57/125 · confidence 4
GPT-4.1
66.6%
Rank #126/188 · confidence 4
GPT-5
winner67.3%
Rank #121/188 · confidence 4
GPT-4.1
4.6%
Rank #142/187 · confidence 4
GPT-5
winner5.4%
Rank #132/187 · confidence 4
GPT-4.1
38.1
Rank #67/96 · confidence 1 · eval date 2025-04-14
GPT-5
winner42.9
Rank #46/96 · confidence 1 · eval date 2025-08-07
GPT-4.1
45.7%
Rank #65/115 · confidence 4
GPT-5
winner55.8%
Rank #49/115 · confidence 4
GPT-4.1
38.1%
Rank #91/185 · confidence 4
GPT-5
winner38.8%
Rank #83/185 · confidence 4
GPT-4.1
winner91.3%
Rank #30/74 · confidence 4
GPT-5
86.1%
Rank #42/74 · confidence 4
GPT-4.1
winner43.7%
Rank #31/68 · confidence 4
GPT-5
36.7%
Rank #35/68 · confidence 4
GPT-4.1
24.2
Rank #62/90 · confidence 1 · eval date 2025-04-14
GPT-5
winner40.7
Rank #20/90 · confidence 1 · eval date 2025-08-07
GPT-4.1
79.6
Rank #41/90 · confidence 1 · eval date 2025-04-14
GPT-5
winner82.1
Rank #31/90 · confidence 1 · eval date 2025-08-07
GPT-4.1
4.6
Rank #82/96 · confidence 1 · eval date 2025-04-14
GPT-5
winner26.5
Rank #39/96 · confidence 1 · eval date 2025-08-07
GPT-4.1
66.6
Rank #80/96 · confidence 1 · eval date 2025-04-14
GPT-5
winner85.4
Rank #45/96 · confidence 1 · eval date 2025-08-07
GPT-4.1
19.4
Rank #75/99 · confidence 1 · eval date 2025-04-14
GPT-5
winner34.7
Rank #48/99 · confidence 1 · eval date 2025-08-07
GPT-4.1
61.2
Rank #49/57 · confidence 1 · eval date 2025-04-14
GPT-5
winner74.2
Rank #32/57 · confidence 1 · eval date 2025-08-07
GPT-4.1
1068.0
Rank #58/66 · confidence 1 · eval date 2025-04-14
GPT-5
winner1214.0
Rank #40/66 · confidence 1 · eval date 2025-08-07
GPT-4.1
43.0
Rank #64/86 · confidence 1 · eval date 2025-04-14
GPT-5
winner73.1
Rank #29/86 · confidence 1 · eval date 2025-08-07
GPT-4.1
47.1
Rank #68/84 · confidence 1 · eval date 2025-04-14
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-4.1 | GPT-5 |
|---|---|---|
Winner: GPT-4.1 | GPT-4.1 gpt-4.1 Audit score 78 70728088 | GPT-5 gpt-5 No audit yet |
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | GPT-4.1 | GPT-5 |
|---|---|---|
120 tests | GPT-4.1 speed / latency 81 tok/s / 1822ms input / output No data | GPT-5 speed / latency N/A / N/A input / output No data |
20 tests | GPT-4.1 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-4.1 speed / latency N/A / N/A input / output No data | GPT-5 speed / latency 46 tok/s / 6577ms input / output No data |
5 tests | GPT-4.1 speed / latency 79 tok/s / 2301ms input / output No data | GPT-5 speed / latency N/A / N/A input / output No data |
5 tests | GPT-4.1 speed / latency N/A / N/A input / output No data | GPT-5 speed / latency 102 tok/s / 948ms input / output No data |
GPT-4.1 gpt-4.1 speed / latency No data input / output $0/M/$0/M | GPT-5 gpt-5 speed / latency No data input / output $0/M | |
GPT-4.1 gpt-4.1 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 mode | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
|---|
