Data points: 115
Model compare
The readout for GPT-4.1 and GPT-4o, before the detailed comparison sheet.
Weighted outcome: GPT-4.1. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
GPT-4.1
GPT-4.1 has the higher weighted result; Model A / B score 74.7 to 25.3.
Evidence depth
115 data points
Includes 22 benchmark rows, 1 audit samples, and 7 provider examples.
Selection signal
Start with GPT-4.1
The charts below split 30 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-4o: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | GPT-4.1 | GPT-4o |
|---|---|---|
| Overall leader | Leading | Contender |
| Weighted overall score | 74.7 pts | 25.3 pts |
| Benchmark category leads | 5 categories | 1 categories |
| Operational advantages | Average speed, First-token latency | Cheapest input price, Free providers, Provider coverage |
| Context window | 1.0M tokens | 128K tokens |
| Max output | 32.8K tokens | 16.4K 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-4o |
|---|---|---|
| Developer | OpenAI | OpenAI |
| Released | Apr 2025 | Nov 2024 |
| Parameters | No data | No data |
| Tokenizer | GPT | GPT |
| Knowledge cutoff | 2024-06-30 | 2023-10-31 |
| OpenRouter ID | openai/gpt-4.1 | openai/gpt-4o |
| References | No data | No data |
This report only uses LMSpeed data for GPT-4.1 and GPT-4o: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
GPT-4.1
GPT-4.1 is stronger in benchmark categories (Agents, Reasoning, Knowledge, Math, Instruction following) and operational dimensions (Average speed, First-token latency).
GPT-4o
GPT-4o is stronger in benchmark categories (Coding) and operational dimensions (Cheapest input price, 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-4o
43.2
GPT-4.1 leads by 0.8
GPT-4o leads by 7.7
GPT-4.1 leads by 8.7
GPT-4.1 leads by 7.3
GPT-4.1 leads by 6.9
No data
No data
GPT-4.1 leads by 0.6
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
GPT-4.1
winner46.0
Rank #65/84 · confidence 1 · eval date 2025-04-14
GPT-4o
43.0
Rank #76/84 · confidence 1 · eval date 2024-05-13
GPT-4.1
winner$8.00/M
Rank #114/162 · confidence 4
GPT-4o
$10.00/M
Rank #120/162 · confidence 4
GPT-4.1
winner$3.50/M
Rank #123/162 · confidence 4
GPT-4o
$4.38/M
Rank #127/162 · confidence 4
GPT-4.1
winner$2.00/M
Rank #123/162 · confidence 4
GPT-4o
$2.50/M
Rank #131/162 · confidence 4
GPT-4.1
winner80.6%
Rank #57/125 · confidence 4
GPT-4o
74.8%
Rank #90/125 · confidence 4
GPT-4.1
winner66.6%
Rank #126/188 · confidence 4
GPT-4o
54.3%
Rank #156/188 · confidence 4
GPT-4.1
winner4.6%
Rank #142/187 · confidence 4
GPT-4o
3.3%
Rank #180/187 · confidence 4
GPT-4.1
winner45.7%
Rank #65/115 · confidence 4
GPT-4o
30.9%
Rank #88/115 · confidence 4
GPT-4.1
winner38.1
Rank #67/96 · confidence 1 · eval date 2025-04-14
GPT-4o
33.3
Rank #80/96 · confidence 1 · eval date 2024-05-13
GPT-4.1
winner38.1%
Rank #91/185 · confidence 4
GPT-4o
33.3%
Rank #120/185 · confidence 4
GPT-4.1
winner91.3%
Rank #30/74 · confidence 4
GPT-4o
75.9%
Rank #56/74 · confidence 4
GPT-4.1
winner43.7%
Rank #31/68 · confidence 4
GPT-4o
15.0%
Rank #50/68 · confidence 4
GPT-4.1
winner5.5
Rank #37/47 · confidence 1 · eval date 2025-04-14
GPT-4o
0.3
Rank #47/47 · confidence 1 · eval date 2024-05-13
GPT-4.1
winner28.3
Rank #47/56 · confidence 1 · eval date 2025-04-14
GPT-4o
25.4
Rank #54/56 · confidence 1 · eval date 2024-05-13
GPT-4.1
winner79.6
Rank #41/90 · confidence 1 · eval date 2025-04-14
GPT-4o
37.9
Rank #75/90 · confidence 1 · eval date 2024-05-13
GPT-4.1
winner24.2
Rank #62/90 · confidence 1 · eval date 2025-04-14
GPT-4o
19.7
Rank #75/90 · confidence 1 · eval date 2024-05-13
GPT-4.1
winner19.4
Rank #75/99 · confidence 1 · eval date 2025-04-14
GPT-4o
11.2
Rank #90/99 · confidence 1 · eval date 2024-05-13
GPT-4.1
winner66.6
Rank #80/96 · confidence 1 · eval date 2025-04-14
GPT-4o
54.3
Rank #91/96 · confidence 1 · eval date 2024-05-13
GPT-4.1
winner4.6
Rank #82/96 · confidence 1 · eval date 2025-04-14
GPT-4o
3.3
Rank #94/96 · confidence 1 · eval date 2024-05-13
GPT-4.1
winner1068.0
Rank #58/66 · confidence 1 · eval date 2025-04-14
GPT-4o
861.0
Rank #65/66 · confidence 1 · eval date 2024-05-13
GPT-4.1
winner43.0
Rank #64/86 · confidence 1 · eval date 2025-04-14
GPT-4o
34.3
Rank #82/86 · confidence 1 · eval date 2024-05-13
GPT-4.1
winner47.1
Rank #68/84 · confidence 1 · eval date 2025-04-14
GPT-4o
25.1
Rank #75/84 · confidence 1 · eval date 2024-05-13
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GPT-4.1 | GPT-4o |
|---|---|---|
Winner: GPT-4.1 | GPT-4.1 gpt-4.1 Audit score 78 70728088 | GPT-4o gpt-4o 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-4o |
|---|---|---|
120 tests | GPT-4.1 speed / latency 81 tok/s / 1822ms input / output No data | GPT-4o 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-4o speed / latency 88 tok/s / 1593ms input / output No data |
15 tests | GPT-4.1 speed / latency 134 tok/s / 2878ms input / output No data | GPT-4o speed / latency 101 tok/s / 492ms input / output No data |
10 tests | GPT-4.1 speed / latency N/A / N/A input / output No data | GPT-4o speed / latency 49 tok/s / 2861ms input / output No data |
5 tests | GPT-4.1 speed / latency N/A / N/A input / output No data | GPT-4o speed / latency 48 tok/s / 13138ms input / output No data |
GPT-4.1 gpt-4.1 speed / latency No data input / output $0/M/$0/M | GPT-4o gpt-4o speed / latency No data input / output $0/M | |
GPT-4.1 gpt-4.1 speed / latency No data input / output $0/request | GPT-4o gpt-4o-2024-05-13 speed / latency No data input / output $0/request |
Weighted outcome: GPT-4.1. 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 modeWeb search |
|---|
