Data points: 106
Model compare
The readout for GPT-5.4 and GPT-5.4 Pro, before the detailed comparison sheet.
Weighted outcome: GPT-5.4 Pro. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
GPT-5.4 Pro
GPT-5.4 Pro has the higher weighted result; Model A / B score 36 to 64.
Evidence depth
106 data points
Includes 17 benchmark rows, 2 audit samples, and 6 provider examples.
Selection signal
Start with GPT-5.4 Pro
The charts below split 25 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 GPT-5.4 Pro: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | GPT-5.4 | GPT-5.4 Pro |
|---|---|---|
| Overall leader | Contender | Leading |
| Weighted overall score | 36.0 pts | 64.0 pts |
| Benchmark category leads | 1 categories | 4 categories |
| Operational advantages | Cheapest input price, Free providers, Provider coverage | No data |
| Context window | 1.1M tokens | 1.1M tokens |
| Max output | 128K tokens | 128K tokens |
| Modalities | Input TextImageFile Output Text | Input |
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 | GPT-5.4 Pro |
|---|---|---|
| Developer | OpenAI | OpenAI |
| Released | Mar 2026 | Mar 2026 |
| Parameters | No data | No data |
| Tokenizer | GPT | GPT |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | openai/gpt-5.4 | openai/gpt-5.4-pro |
| References | No data | No data |
This report only uses LMSpeed data for GPT-5.4 and GPT-5.4 Pro: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
GPT-5.4
GPT-5.4 is stronger in benchmark categories (Math) and operational dimensions (Cheapest input price, Free providers, Provider coverage).
GPT-5.4 Pro
GPT-5.4 Pro leads these benchmark categories: Agents, Reasoning, Knowledge, Multimodal.
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
57.4
Avg. score
GPT-5.4 Pro
62.2
GPT-5.4 Pro leads by 3.6
GPT-5.4
GPT-5.4 Pro leads by 2.8
GPT-5.4 Pro leads by 1.5
GPT-5.4 leads by 0.8
No data
GPT-5.4 Pro leads by 19.4
GPT-5.4
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
GPT-5.4
67.0
Rank #19/84 · confidence 3 · eval date 2026-03-05
GPT-5.4 Pro
winner80.0
Rank #2/84 · confidence 2 · eval date 2026-03-05
GPT-5.4
winner$2.50/M
Rank #131/162 · confidence 4
GPT-5.4 Pro
$30.00/M
Rank #160/162 · confidence 4
GPT-5.4
winner$5.63/M
Rank #135/162 · confidence 4
GPT-5.4 Pro
$67.50/M
Rank #161/162 · confidence 4
GPT-5.4
winner$15.00/M
Rank #136/162 · confidence 4
GPT-5.4 Pro
$180.00/M
Rank #161/162 · confidence 4
GPT-5.4
10.6%
Rank #91/187 · confidence 4
GPT-5.4 Pro
winner58.7%
Rank #1/187 · confidence 2 · eval date 2026-03-05
GPT-5.4
23.4
Rank #7/73 · confidence 3 · eval date 2026-03-05
GPT-5.4 Pro
winner30.0
Rank #3/73 · confidence 2 · eval date 2026-03-05
GPT-5.4
74.0
Rank #7/15 · confidence 3 · eval date 2026-03-05
GPT-5.4 Pro
winner83.3
Rank #4/15 · confidence 2 · eval date 2026-03-05
GPT-5.4
78.9
Rank #16/25 · confidence 3 · eval date 2026-03-05
GPT-5.4 Pro
winner86.6
Rank #8/25 · confidence 2 · eval date 2026-03-05
GPT-5.4
27.1
Rank #8/35 · confidence 3 · eval date 2026-03-05
GPT-5.4 Pro
winner37.5
Rank #5/35 · confidence 2 · eval date 2026-03-05
GPT-5.4
47.6
Rank #7/47 · confidence 3 · eval date 2026-03-05
GPT-5.4 Pro
winner50.0
Rank #6/47 · confidence 2 · eval date 2026-03-05
GPT-5.4
65.9
Rank #17/56 · confidence 3 · eval date 2026-03-05
GPT-5.4 Pro
winner70.8
Rank #15/56 · confidence 2 · eval date 2026-03-05
GPT-5.4
77.3
Rank #16/55 · confidence 3 · eval date 2026-03-05
GPT-5.4 Pro
winner88.0
Rank #1/55 · confidence 2 · eval date 2026-03-05
GPT-5.4
39.8
Rank #11/15 · confidence 3 · eval date 2026-03-05
GPT-5.4 Pro
winner42.7
Rank #7/15 · confidence 2 · eval date 2026-03-05
GPT-5.4
81.2
Rank #6/27 · confidence 3 · eval date 2026-03-05
GPT-5.4 Pro
winner94.0
Rank #1/27 · confidence 2 · eval date 2026-03-05
GPT-5.4
68.5
Rank #14/35 · confidence 3 · eval date 2026-03-05
GPT-5.4 Pro
winner89.0
Rank #3/35 · confidence 2 · eval date 2026-03-05
GPT-5.4
82.7
Rank #14/25 · confidence 3 · eval date 2026-03-05
GPT-5.4 Pro
winner89.3
Rank #4/25 · confidence 2 · eval date 2026-03-05
GPT-5.4
74.7
Rank #14/53 · confidence 3 · eval date 2026-03-05
GPT-5.4 Pro
winner81.7
Rank #11/53 · confidence 2 · eval date 2026-03-05
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GPT-5.4 | GPT-5.4 Pro |
|---|---|---|
Winner: GPT-5.4 | GPT-5.4 gpt-5.4 Audit score 100 100100100100 | GPT-5.4 Pro gpt-5.4-pro No audit yet |
Winner: GPT-5.4 | GPT-5.4 gpt-5.4 Audit score 93 1008486100 | GPT-5.4 Pro gpt-5.4-pro-2026-03-05 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 | GPT-5.4 Pro |
|---|---|---|
5 tests | GPT-5.4 speed / latency 70 tok/s / 2961ms input / output No data | GPT-5.4 Pro speed / latency N/A / N/A input / output No data |
5 tests | GPT-5.4 speed / latency 44 tok/s / 3441ms input / output No data | GPT-5.4 Pro speed / latency N/A / N/A input / output No data |
5 tests | GPT-5.4 speed / latency 44 tok/s / 1119ms input / output No data | GPT-5.4 Pro speed / latency N/A / N/A input / output No data |
5 tests | GPT-5.4 speed / latency 71 tok/s / 1629ms input / output No data | GPT-5.4 Pro speed / latency N/A / N/A input / output No data |
5 tests | GPT-5.4 speed / latency 36 tok/s / 12157ms input / output No data | GPT-5.4 Pro speed / latency N/A / N/A input / output No data |
GPT-5.4 gpt-5.4 speed / latency No data input / output $0/request | GPT-5.4 Pro gpt-5.4-pro speed / latency No data input / output $0/request |
Weighted outcome: GPT-5.4 Pro. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Output
| Features | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
|---|
