Data points: 103
Model compare
GPT-5.4 vs O1
The readout for GPT-5.4 and O1, before the detailed comparison sheet.
Key Takeaways
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 86.7 to 13.3.
Evidence depth
103 data points
Includes 20 benchmark rows, 0 audit samples, and 10 provider examples.
Selection signal
Start with GPT-5.4
The charts below split 30 high-signal samples across speed, scores, and audit health.
Change comparison
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.
Comparison sheet
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 | 86.7 pts | 13.3 pts |
| Benchmark category leads | 5 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 | Input TextImageFile Output Text |
| Features | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
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 metadata
Model metadata
| 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 |
When to choose each model
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, Instruction following) and operational dimensions (Cheapest input price, Free providers, Provider coverage).
O1
O1 leads these benchmark categories: Knowledge.
Benchmark score comparison
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
Category performance
Compare benchmark category scores on a 0-100 scale. Select a category to inspect the gap.
- Model A coverage
- 7 / 8
- Model B coverage
- 6 / 8
- Shared
- 6 shared categories
Avg. score
GPT-5.4
57.2
Avg. score
O1
52.3
Agents
GPT-5.4 leads by 11.6
Coding
GPT-5.4 leads by 11.8
Reasoning
GPT-5.4 leads by 5.5
Knowledge
O1 leads by 2.6
Math
GPT-5.4 leads by 5.0
Multilingual
No data
Multimodal
GPT-5.4
Instruction following
GPT-5.4 leads by 2.4
Professional benchmark details
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Professional benchmark details
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
GPT-5.4
winner$2.50/M
Rank #150/180 · confidence 4
O1
$15.00/M
Rank #173/180 · confidence 4
GPT-5.4
winner$5.63/M
Rank #154/180 · confidence 4
O1
$26.25/M
Rank #173/180 · confidence 4
GPT-5.4
winner$15.00/M
Rank #155/180 · confidence 4
O1
$60.00/M
Rank #173/180 · confidence 4
GPT-5.4
winner23.4
Rank #8/83 · confidence 3 · eval date 2026-03-05
O1
0.3
Rank #78/83 · confidence 1 · eval date 2024-12-01
GPT-5.4
winner77.7
Rank #15/100 · confidence 3 · eval date 2026-03-05
O1
63.3
Rank #72/100 · confidence 1 · eval date 2024-12-01
GPT-5.4
winner11.3%
Rank #110/209 · confidence 4
O1
7.0%
Rank #135/209 · confidence 4
GPT-5.4
winner74.8%
Rank #117/212 · confidence 4
O1
74.7%
Rank #120/212 · confidence 4
GPT-5.4
winner56.6
Rank #6/108 · confidence 3 · eval date 2026-03-05
O1
35.8
Rank #86/108 · confidence 1 · eval date 2024-12-01
GPT-5.4
winner71.0
Rank #17/70 · confidence 3 · eval date 2026-03-05
O1
34.0
Rank #54/70 · confidence 1 · eval date 2024-09-12
GPT-5.4
winner47.1%
Rank #34/205 · confidence 4
O1
35.8%
Rank #124/205 · confidence 4
GPT-5.4
winner47.6
Rank #7/47 · confidence 3 · eval date 2026-03-05
O1
9.3
Rank #34/47 · confidence 1 · eval date 2024-12-01
GPT-5.4
winner65.7
Rank #23/62 · confidence 3 · eval date 2026-03-05
O1
32.6
Rank #48/62 · confidence 1 · eval date 2024-12-01
GPT-5.4
winner43.7
Rank #11/108 · confidence 3 · eval date 2026-03-05
O1
7.0
Rank #85/108 · confidence 1 · eval date 2024-12-01
GPT-5.4
winner50.8
Rank #12/101 · confidence 3 · eval date 2026-03-05
O1
34.5
Rank #43/101 · confidence 1 · eval date 2024-12-01
GPT-5.4
winner91.7
Rank #13/101 · confidence 3 · eval date 2026-03-05
O1
69.6
Rank #54/101 · confidence 1 · eval date 2024-12-01
GPT-5.4
winner92.0
Rank #17/108 · confidence 3 · eval date 2026-03-05
O1
74.7
Rank #84/108 · confidence 1 · eval date 2024-12-01
GPT-5.4
winner53.1
Rank #17/111 · confidence 3 · eval date 2026-03-05
O1
17.2
Rank #90/111 · confidence 1 · eval date 2024-09-12
GPT-5.4
winner75.3
Rank #22/69 · confidence 3 · eval date 2026-03-05
O1
64.0
Rank #43/69 · confidence 1 · eval date 2024-12-01
GPT-5.4
winner73.9
Rank #22/84 · confidence 3 · eval date 2026-03-05
O1
70.3
Rank #35/84 · confidence 1 · eval date 2024-12-01
GPT-5.4
winner98.9
Rank #2/82 · confidence 3 · eval date 2026-03-05
O1
62.6
Rank #61/82 · confidence 1 · eval date 2024-12-01
API audit comparison
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
API audit comparison
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GPT-5.4 | O1 |
|---|---|---|
| No completed audits are available from shared providers yet. | ||
Provider examples
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
Provider examples
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | GPT-5.4 | O1 |
|---|---|---|
Sub2API20 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 |
QQ Code10 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 |
Sub2API10 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 |
Sub2API10 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 |
微雨API10 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/M/$0/M | O1 o1-preview speed / latency No data input / output $11.51/M/$46.03/M | |
GPT-5.4 gpt-5.4 speed / latency No data input / output $0/request | O1 o1-2024-12-17 speed / latency No data input / output $0/request | |
GPT-5.4 gpt-5.4 speed / latency No data input / output $0.0027/request | O1 o1 speed / latency No data input / output $1.03/M/$4.11/M | |
GPT-5.4 gpt-5.4 speed / latency No data input / output $0.342/M/$2.05/M | O1 o1-preview-all speed / latency No data input / output $0.033/request | |
GPT-5.4 gpt-5.4-2026-03-05 speed / latency No data input / output $0.342/M/$2.05/M | O1 o1-preview-all speed / latency No data input / output $0.033/request |
FAQ
Weighted outcome: GPT-5.4. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
- Why is this comparison indexable?
- It has 4 verifiable comparison points, and both models have pricing or benchmark data.
- Are missing metrics invented?
- No. Metrics without LMSpeed data are omitted from this report.