Data points: 116
Model compare
GPT-5 vs GPT-5.4 Mini
The readout for GPT-5 and GPT-5.4 Mini, before the detailed comparison sheet.
Key Takeaways
Weighted outcome: GPT-5.4 Mini. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
GPT-5.4 Mini
GPT-5.4 Mini has the higher weighted result; Model A / B score 34.3 to 65.7.
Evidence depth
116 data points
Includes 25 benchmark rows, 0 audit samples, and 10 provider examples.
Selection signal
Start with GPT-5.4 Mini
The charts below split 35 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 and GPT-5.4 Mini: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | GPT-5 | GPT-5.4 Mini |
|---|---|---|
| Overall leader | Contender | Leading |
| Weighted overall score | 34.3 pts | 65.7 pts |
| Benchmark category leads | 3 categories | 4 categories |
| Operational advantages | No data | Cheapest input price, Average speed, First-token latency, Free providers, Provider coverage |
| Context window | 400K tokens | 400K tokens |
| Max output | 128K tokens | 128K tokens |
| Modalities | Input TextImageFile Output Text | Input FileImageText 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 | GPT-5.4 Mini |
|---|---|---|
| Developer | OpenAI | OpenAI |
| Released | Aug 2025 | Mar 2026 |
| Parameters | No data | No data |
| Tokenizer | GPT | GPT |
| Knowledge cutoff | 2024-09-30 | 2025-08-31 |
| OpenRouter ID | openai/gpt-5 | openai/gpt-5.4-mini |
| References | No data | No data |
When to choose each model
This report only uses LMSpeed data for GPT-5 and GPT-5.4 Mini: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
GPT-5
GPT-5 leads these benchmark categories: Knowledge, Math, Multimodal.
GPT-5.4 Mini
GPT-5.4 Mini is stronger in benchmark categories (Agents, Coding, Reasoning, Instruction following) and operational dimensions (Cheapest input price, Average speed, First-token latency, Free providers, Provider coverage).
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
- 7 / 8
- Shared
- 7 shared categories
Avg. score
GPT-5
50.9
Avg. score
GPT-5.4 Mini
51.1
Agents
GPT-5.4 Mini leads by 4.3
Coding
GPT-5.4 Mini leads by 8.2
Reasoning
GPT-5.4 Mini leads by 4.7
Knowledge
GPT-5 leads by 3.8
Math
GPT-5 leads by 12.1
Multilingual
No data
Multimodal
GPT-5 leads by 0.8
Instruction following
GPT-5.4 Mini leads by 1.0
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
winner67.0
Rank #27/111 · confidence 1 · eval date 2025-08-07
GPT-5.4 Mini
60.0
Rank #47/111 · confidence 4 · eval date 2026-03-17
GPT-5
$1.25/M
Rank #123/186 · confidence 4
GPT-5.4 Mini
winner$0.750/M
Rank #107/186 · confidence 4
GPT-5
$3.44/M
Rank #139/186 · confidence 4
GPT-5.4 Mini
winner$1.69/M
Rank #113/186 · confidence 4
GPT-5
$10.00/M
Rank #142/186 · confidence 4
GPT-5.4 Mini
winner$4.50/M
Rank #125/186 · confidence 4
GPT-5
73.2
Rank #31/67 · confidence 1 · eval date 2025-08-07
GPT-5.4 Mini
winner73.9
Rank #29/67 · confidence 4 · eval date 2026-03-17
GPT-5
76.0
Rank #46/106 · confidence 1 · eval date 2025-08-07
GPT-5.4 Mini
winner77.0
Rank #43/106 · confidence 4 · eval date 2026-03-17
GPT-5
67.3%
Rank #148/218 · confidence 4
GPT-5.4 Mini
winner82.3%
Rank #87/218 · confidence 4
GPT-5
6.0%
Rank #158/216 · confidence 4
GPT-5.4 Mini
winner18.6%
Rank #91/216 · confidence 4
GPT-5
20.1
Rank #22/33 · confidence 1 · eval date 2025-08-07
GPT-5.4 Mini
winner48.0
Rank #10/33 · confidence 4 · eval date 2026-03-17
GPT-5
41.1
Rank #66/113 · confidence 2 · eval date 2025-08-07
GPT-5.4 Mini
winner52.1
Rank #28/113 · confidence 4 · eval date 2026-03-17
GPT-5
37.8
Rank #58/75 · confidence 1 · eval date 2025-08-07
GPT-5.4 Mini
winner56.1
Rank #36/75 · confidence 4 · eval date 2026-03-17
GPT-5
83.2
Rank #32/106 · confidence 1 · eval date 2025-08-07
GPT-5.4 Mini
winner90.2
Rank #18/106 · confidence 4 · eval date 2026-03-17
GPT-5
winner39.5
Rank #38/106 · confidence 1 · eval date 2025-08-07
GPT-5.4 Mini
37.5
Rank #44/106 · confidence 4 · eval date 2026-03-17
GPT-5
84.2
Rank #64/113 · confidence 1 · eval date 2025-08-07
GPT-5.4 Mini
winner87.5
Rank #46/113 · confidence 4 · eval date 2026-03-17
GPT-5
winner65.4
Rank #51/83 · confidence 1 · eval date 2025-08-07
GPT-5.4 Mini
57.0
Rank #62/83 · confidence 4 · eval date 2026-03-17
GPT-5
25.4
Rank #60/114 · confidence 1 · eval date 2025-08-07
GPT-5.4 Mini
winner28.1
Rank #54/114 · confidence 4 · eval date 2026-03-17
GPT-5
22.9
Rank #76/117 · confidence 1 · eval date 2025-08-07
GPT-5.4 Mini
winner24.6
Rank #69/117 · confidence 4 · eval date 2026-03-17
GPT-5
winner69.4
Rank #27/56 · confidence 1 · eval date 2025-08-07
GPT-5.4 Mini
57.2
Rank #41/56 · confidence 4 · eval date 2026-03-17
GPT-5
winner74.3
Rank #38/68 · confidence 1 · eval date 2025-08-07
GPT-5.4 Mini
73.3
Rank #42/68 · confidence 4 · eval date 2026-03-17
GPT-5
86.3
Rank #27/52 · confidence 1 · eval date 2025-08-07
GPT-5.4 Mini
winner89.8
Rank #17/52 · confidence 4 · eval date 2026-03-17
GPT-5
70.6
Rank #32/84 · confidence 1 · eval date 2025-08-07
GPT-5.4 Mini
winner73.3
Rank #23/84 · confidence 4 · eval date 2026-03-17
GPT-5
86.5
Rank #39/82 · confidence 1 · eval date 2025-08-07
GPT-5.4 Mini
winner93.4
Rank #28/82 · confidence 4 · eval date 2026-03-17
GPT-5
winner26.5
Rank #34/70 · confidence 1 · eval date 2025-08-07
GPT-5.4 Mini
19.6
Rank #50/70 · confidence 4 · eval date 2026-03-17
GPT-5
29.1
Rank #43/66 · confidence 1 · eval date 2025-08-07
GPT-5.4 Mini
winner29.7
Rank #40/66 · confidence 4 · eval date 2026-03-17
GPT-5
1083.0
Rank #45/72 · confidence 1 · eval date 2025-08-07
GPT-5.4 Mini
winner1095.0
Rank #42/72 · confidence 4 · eval date 2026-03-17
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 | GPT-5.4 Mini |
|---|---|---|
| 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 | GPT-5.4 Mini |
|---|---|---|
V-API20 tests | GPT-5 speed / latency 95 tok/s / 1234ms input / output No data | GPT-5.4 Mini speed / latency N/A / N/A input / output No data |
发现AI15 tests | GPT-5 speed / latency N/A / N/A input / output No data | GPT-5.4 Mini speed / latency 108 tok/s / 1950ms input / output No data |
星见雅 API10 tests | GPT-5 speed / latency 38 tok/s / 15844ms input / output No data | GPT-5.4 Mini speed / latency 223 tok/s / 3411ms input / output No data |
DNSHE5 tests | GPT-5 speed / latency N/A / N/A input / output No data | GPT-5.4 Mini speed / latency 123 tok/s / 8529ms input / output No data |
EasyMore5 tests | GPT-5 speed / latency 46 tok/s / 6577ms input / output No data | GPT-5.4 Mini speed / latency N/A / N/A input / output No data |
GPT-5 gpt-5 speed / latency No data input / output $0/M/$0/M | GPT-5.4 Mini gpt-5.4-mini speed / latency No data input / output $0.062/M/$0.370/M | |
GPT-5 gpt-5 speed / latency No data input / output $0/request | GPT-5.4 Mini gpt-5.4-mini speed / latency No data input / output $0/request | |
GPT-5 gpt-5 speed / latency No data input / output $0.0027/request | GPT-5.4 Mini gpt-5.4-mini speed / latency No data input / output $0.026/M/$0.154/M | |
GPT-5 gpt-5 speed / latency No data input / output $0.011/M/$0.088/M | GPT-5.4 Mini gpt-5.4-mini speed / latency No data input / output $0.0044/M/$0.026/M | |
GPT-5 gpt-5-low speed / latency No data input / output $0.0068/request | GPT-5.4 Mini gpt-5.4-mini speed / latency No data input / output $0.010/M/$0.062/M |
FAQ
Weighted outcome: GPT-5.4 Mini. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
- Why is this comparison indexable?
- It has 6 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.