Data points: 130
Model compare
The readout for GPT-5.4 and O1, before the detailed comparison sheet.
Weighted outcome: GPT-5.4. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
GPT-5.4
GPT-5.4 has the higher weighted result; Model A / B score 90 to 10.
Evidence depth
130 data points
Includes 31 benchmark rows, 1 audit samples, and 6 provider examples.
Selection signal
Start with GPT-5.4
The charts below split 38 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-5.4 and O1: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | GPT-5.4 | O1 |
|---|---|---|
| Overall leader | Leading | Contender |
| Weighted overall score | 90.0 pts | 10.0 pts |
| Benchmark category leads | 7 categories | 1 categories |
| Operational advantages | Cheapest input price, Free providers, Provider coverage | No data |
| Context window | 1.1M tokens | 200K tokens |
| Max output | 128K tokens | 100K 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-5.4 | O1 |
|---|---|---|
| Developer | OpenAI | OpenAI |
| Released | Mar 2026 | Dec 2024 |
| Parameters | No data | No data |
| Tokenizer | GPT | GPT |
| Knowledge cutoff | No data | 2023-10-31 |
| OpenRouter ID | openai/gpt-5.4 | openai/o1 |
| References | No data | No data |
This report only uses LMSpeed data for GPT-5.4 and O1: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
GPT-5.4
GPT-5.4 is stronger in benchmark categories (Agents, Coding, Reasoning, Math, Multilingual) and operational dimensions (Cheapest input price, Free providers, Provider coverage).
O1
O1 leads these benchmark categories: Knowledge.
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-5.4
58.7
Avg. score
O1
51.7
GPT-5.4 leads by 12.2
GPT-5.4 leads by 17.3
GPT-5.4 leads by 8.5
O1 leads by 2.6
GPT-5.4 leads by 5.0
GPT-5.4 leads by 9.5
GPT-5.4 leads by 3.4
GPT-5.4 leads by 2.8
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
GPT-5.4
winner86.0
Rank #3/127 · confidence 4 · eval date 2026-03-05
O1
77.0
Rank #18/127 · confidence 1 · eval date 2024-09-12
GPT-5.4
winner0.66 s
Rank #24/139 · confidence 4
O1
19.90 s
Rank #86/139 · confidence 4
GPT-5.4
winner0.66 s
Rank #32/139 · confidence 4
O1
19.90 s
Rank #119/139 · confidence 4
GPT-5.4
109.5 tok/s
Rank #56/139 · confidence 4
O1
winner131.4 tok/s
Rank #45/139 · confidence 4
GPT-5.4
winner$2.50/M
Rank #133/163 · confidence 4
O1
$15.00/M
Rank #156/163 · confidence 4
GPT-5.4
winner$5.63/M
Rank #137/163 · confidence 4
O1
$26.25/M
Rank #156/163 · confidence 4
GPT-5.4
winner$15.00/M
Rank #138/163 · confidence 4
O1
$60.00/M
Rank #156/163 · confidence 4
GPT-5.4
winner87.5
Rank #3/70 · confidence 4 · eval date 2026-03-05
O1
82.8
Rank #7/70 · confidence 1 · eval date 2024-09-12
GPT-5.4
winner74.0
Rank #5/89 · confidence 4 · eval date 2026-03-05
O1
59.3
Rank #61/89 · confidence 1 · eval date 2024-12-01
GPT-5.4
winner23.4
Rank #7/73 · confidence 4 · eval date 2026-03-05
O1
0.3
Rank #68/73 · confidence 1 · eval date 2024-12-01
GPT-5.4
winner10.6%
Rank #90/186 · confidence 4
O1
7.7%
Rank #107/186 · confidence 4
GPT-5.4
winner74.8%
Rank #96/187 · confidence 4
O1
74.7%
Rank #99/187 · confidence 4
GPT-5.4
winner91.2
Rank #1/100 · confidence 4 · eval date 2026-03-05
O1
72.0
Rank #33/100 · confidence 1 · eval date 2024-09-12
GPT-5.4
winner56.6
Rank #3/96 · confidence 4 · eval date 2026-03-05
O1
35.8
Rank #75/96 · confidence 1 · eval date 2024-12-01
GPT-5.4
winner57.6
Rank #5/85 · confidence 4 · eval date 2026-03-05
O1
12.9
Rank #72/85 · confidence 1 · eval date 2024-12-01
GPT-5.4
winner71.0
Rank #10/58 · confidence 4 · eval date 2026-03-05
O1
34.0
Rank #43/58 · confidence 1 · eval date 2024-09-12
GPT-5.4
winner47.1%
Rank #23/184 · confidence 4
O1
35.8%
Rank #106/184 · confidence 4
GPT-5.4
winner47.6
Rank #7/47 · confidence 4 · eval date 2026-03-05
O1
9.3
Rank #34/47 · confidence 1 · eval date 2024-12-01
GPT-5.4
winner70.3
Rank #16/59 · confidence 4 · eval date 2026-03-05
O1
33.0
Rank #45/59 · confidence 1 · eval date 2024-12-01
GPT-5.4
winner96.8
Rank #1/92 · confidence 4 · eval date 2026-03-05
O1
77.3
Rank #19/92 · confidence 1 · eval date 2024-09-12
GPT-5.4
winner41.6
Rank #7/96 · confidence 4 · eval date 2026-03-05
O1
7.7
Rank #73/96 · confidence 1 · eval date 2024-12-01
GPT-5.4
winner51.4
Rank #9/99 · confidence 4 · eval date 2026-03-05
O1
17.0
Rank #79/99 · confidence 1 · eval date 2024-09-12
GPT-5.4
winner92.0
Rank #10/96 · confidence 4 · eval date 2026-03-05
O1
74.7
Rank #73/96 · confidence 1 · eval date 2024-12-01
GPT-5.4
winner50.0
Rank #10/90 · confidence 4 · eval date 2026-03-05
O1
34.7
Rank #35/90 · confidence 1 · eval date 2024-12-01
GPT-5.4
winner88.6
Rank #19/90 · confidence 4 · eval date 2026-03-05
O1
69.3
Rank #55/90 · confidence 1 · eval date 2024-12-01
GPT-5.4
winner100.0
Rank #1/62 · confidence 4 · eval date 2026-03-05
O1
81.2
Rank #13/62 · confidence 1 · eval date 2024-09-12
GPT-5.4
60.0
Rank #49/81 · confidence 4 · eval date 2026-03-05
O1
winner66.7
Rank #33/81 · confidence 1 · eval date 2024-09-12
GPT-5.4
winner92.6
Rank #2/75 · confidence 4 · eval date 2026-03-05
O1
74.6
Rank #32/75 · confidence 1 · eval date 2024-09-12
GPT-5.4
winner73.9
Rank #24/86 · confidence 4 · eval date 2026-03-05
O1
70.3
Rank #37/86 · confidence 1 · eval date 2024-12-01
GPT-5.4
winner98.9
Rank #2/84 · confidence 4 · eval date 2026-03-05
O1
62.6
Rank #62/84 · confidence 1 · eval date 2024-12-01
GPT-5.4
winner87.5
Rank #9/95 · confidence 4 · eval date 2026-03-05
O1
84.2
Rank #14/95 · confidence 1 · eval date 2024-09-12
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GPT-5.4 | O1 |
|---|---|---|
Winner: GPT-5.4 | GPT-5.4 gpt-5.4 Audit score 93 1008486100 | O1 o1-2024-12-17 No audit yet |
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | GPT-5.4 | O1 |
|---|---|---|
20 tests | GPT-5.4 speed / latency 51 tok/s / 4032ms input / output No data | O1 speed / latency N/A / N/A input / output No data |
10 tests | GPT-5.4 speed / latency 55 tok/s / 2903ms input / output No data | O1 speed / latency N/A / N/A input / output No data |
10 tests | GPT-5.4 speed / latency 54 tok/s / 1369ms input / output No data | O1 speed / latency N/A / N/A input / output No data |
10 tests | GPT-5.4 speed / latency 51 tok/s / 1093ms input / output No data | O1 speed / latency N/A / N/A input / output No data |
10 tests | GPT-5.4 speed / latency 37 tok/s / 1721ms input / output No data | O1 speed / latency N/A / N/A input / output No data |
GPT-5.4 gpt-5.4 speed / latency No data input / output $0/request | O1 o1 speed / latency No data input / output $5.88/request |
Weighted outcome: GPT-5.4. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Input
Output
| Features | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
|---|
