Data points: 100
Model compare
The readout for GPT-4o Mini and GPT-5.4, 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 8 to 92.
Evidence depth
100 data points
Includes 15 benchmark rows, 1 audit samples, and 6 provider examples.
Selection signal
Start with GPT-5.4
The charts below split 22 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-4o Mini and GPT-5.4: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | GPT-4o Mini | GPT-5.4 |
|---|---|---|
| Overall leader | Contender | Leading |
| Weighted overall score | 8.0 pts | 92.0 pts |
| Benchmark category leads | 0 categories | 6 categories |
| Operational advantages | Average speed, First-token latency | Cheapest input price, Free providers, Provider coverage |
| Context window | 128K tokens | 1.1M tokens |
| Max output | 16.4K tokens | 128K 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-4o Mini | GPT-5.4 |
|---|---|---|
| Developer | OpenAI | OpenAI |
| Released | Jul 2024 | Mar 2026 |
| Parameters | No data | No data |
| Tokenizer | GPT | GPT |
| Knowledge cutoff | 2023-10-31 | No data |
| OpenRouter ID | openai/gpt-4o-mini | openai/gpt-5.4 |
| References | No data | No data |
This report only uses LMSpeed data for GPT-4o Mini and GPT-5.4: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
GPT-4o Mini
GPT-4o Mini has these operational advantages: Average speed, First-token latency.
GPT-5.4
GPT-5.4 is stronger in benchmark categories (Agents, Coding, Reasoning, Knowledge, Math) 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-4o Mini
41.8
Avg. score
GPT-5.4
57.4
GPT-5.4 leads by 24.3
GPT-5.4 leads by 25.7
GPT-5.4 leads by 16.2
GPT-5.4 leads by 5.7
GPT-5.4 leads by 11.5
No data
GPT-5.4
GPT-5.4 leads by 13.9
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
GPT-4o Mini
winner$0.262/M
Rank #21/162 · confidence 4
GPT-5.4
$5.63/M
Rank #135/162 · confidence 4
GPT-4o Mini
winner$0.150/M
Rank #21/162 · confidence 4
GPT-5.4
$2.50/M
Rank #131/162 · confidence 4
GPT-4o Mini
winner$0.600/M
Rank #23/162 · confidence 4
GPT-5.4
$15.00/M
Rank #136/162 · confidence 4
GPT-4o Mini
4.0%
Rank #162/187 · confidence 4
GPT-5.4
winner10.6%
Rank #91/187 · confidence 4
GPT-4o Mini
42.6%
Rank #173/188 · confidence 4
GPT-5.4
winner74.8%
Rank #96/188 · confidence 4
GPT-4o Mini
22.9
Rank #94/96 · confidence 1 · eval date 2024-07-18
GPT-5.4
winner56.6
Rank #4/96 · confidence 3 · eval date 2026-03-05
GPT-4o Mini
11.4
Rank #57/59 · confidence 1 · eval date 2024-07-18
GPT-5.4
winner71.0
Rank #11/59 · confidence 3 · eval date 2026-03-05
GPT-4o Mini
22.9%
Rank #166/185 · confidence 4
GPT-5.4
winner47.1%
Rank #24/185 · confidence 4
GPT-4o Mini
4.0
Rank #89/96 · confidence 1 · eval date 2024-07-18
GPT-5.4
winner41.6
Rank #8/96 · confidence 3 · eval date 2026-03-05
GPT-4o Mini
6.9
Rank #97/99 · confidence 1 · eval date 2024-07-18
GPT-5.4
winner51.4
Rank #10/99 · confidence 3 · eval date 2026-03-05
GPT-4o Mini
42.6
Rank #95/96 · confidence 1 · eval date 2024-07-18
GPT-5.4
winner92.0
Rank #11/96 · confidence 3 · eval date 2026-03-05
GPT-4o Mini
41.5
Rank #55/57 · confidence 1 · eval date 2024-07-18
GPT-5.4
winner78.4
Rank #16/57 · confidence 3 · eval date 2026-03-05
GPT-4o Mini
31.0
Rank #84/86 · confidence 1 · eval date 2024-07-18
GPT-5.4
winner73.9
Rank #24/86 · confidence 3 · eval date 2026-03-05
GPT-4o Mini
1.0
Rank #55/55 · confidence 1 · eval date 2024-07-18
GPT-5.4
winner41.1
Rank #12/55 · confidence 3 · eval date 2026-03-05
GPT-4o Mini
241.0
Rank #51/55 · confidence 1 · eval date 2024-07-18
GPT-5.4
winner1392.0
Rank #12/55 · confidence 3 · eval date 2026-03-05
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GPT-4o Mini | GPT-5.4 |
|---|---|---|
Winner: GPT-5.4 | GPT-4o Mini gpt-4o-mini-2024-07-18 No audit yet | GPT-5.4 gpt-5.4 Audit score 93 1008486100 |
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | GPT-4o Mini | GPT-5.4 |
|---|---|---|
158 tests | GPT-4o Mini speed / latency 81 tok/s / 2589ms input / output No data | GPT-5.4 speed / latency N/A / N/A input / output No data |
20 tests | GPT-4o Mini speed / latency N/A / N/A input / output No data | GPT-5.4 speed / latency 51 tok/s / 4032ms input / output No data |
10 tests | GPT-4o Mini speed / latency N/A / N/A input / output No data | GPT-5.4 speed / latency 88 tok/s / 6075ms input / output No data |
10 tests | GPT-4o Mini speed / latency 84 tok/s / 5980ms input / output No data | GPT-5.4 speed / latency N/A / N/A input / output No data |
10 tests | GPT-4o Mini speed / latency N/A / N/A input / output No data | GPT-5.4 speed / latency 55 tok/s / 2903ms input / output No data |
GPT-4o Mini gpt-4o-mini-2024-07-18 speed / latency No data input / output $0/request | GPT-5.4 gpt-5.4-2026-03-05 speed / latency No data input / output $0/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 modeWeb search | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
|---|
