Data points: 82
The readout for GPT-5 and GPT-5.4 Mini, before the detailed comparison sheet.
Decision read
GPT-5.4 Mini
GPT-5.4 Mini currently has the stronger profile, with verified wins split 0 to 6.
Evidence depth
82 data points
Includes 8 benchmark rows, 0 audit samples, and 7 provider examples.
Selection signal
Start with GPT-5.4 Mini
The charts below split 15 high-signal samples across speed, scores, and audit health.
Model compare GPT-5 vs GPT-5.4 Minigpt-5-vs-gpt-5-4-mini | Model A GPT-5 | Model B GPT-5.4 Mini |
|---|---|---|
| Overall leader | Contender | Leading |
| Verified metric wins | 0 wins | 6 wins |
| Where it leads | No data | Cheapest input price, Average speed, First-token latency, Free providers, Provider coverage, Recent tests |
| Model metadata | GPT-5 exposes 128K tokens; notable signals: Text input, Image input, File input, Text output. | GPT-5.4 Mini exposes 400K tokens; notable signals: Text input, Image input, File input, Text output. |
| Developer | OpenAI | OpenAI |
| Context window | 128K tokens | 400K tokens |
| Max output | 16.4K tokens | 128K tokens |
| Released | Aug 2025 | Mar 2026 |
| Modalities | Input FileImageText Output Text | Input FileImageText Output Text |
| Features | Text inputImage inputFile inputText outputStructured outputsJSON mode | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
| Parameters | No data | No data |
| Tokenizer | GPT | GPT |
| Knowledge cutoff | 2024-09-30 | 2025-08-31 |
| OpenRouter ID | openai/gpt-5-chat | openai/gpt-5.4-mini |
| References | No data | No data |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | GPT-5 | GPT-5.4 Mini |
|---|---|---|
| SciCode | 42.9%#31 | 49.9%#13 |
| GPQA | 85.4%#31 | 87.5%#17 |
| Output speed | 109.6 tok/s#44 | 165.0 tok/s#22 |
| HLE | 26.5%#24 | 26.6%#23 |
| Input price | $1.25/M#30 | $0.750/M#24 |
| Output price | $10.00/M#41 | $4.50/M#34 |
| Time to first answer token | 62.85 s#98 | 3.95 s#47 |
| Blended price | $3.44/M#58 | $1.69/M#48 |
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. | ||
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 gpt-5-openai-compact speed / latency N/A / N/A input / output $75.00/M / $600.00/M | GPT-5.4 Mini gpt-5.4-mini speed / latency 123 tok/s / 8529ms input / output $0/M / $0/M |
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-high speed / latency No data input / output $0.0068/M / $0.0068/M | GPT-5.4 Mini gpt-5.4-mini-2026-03-17 speed / latency No data input / output $0.103/M / $0.616/M | |
GPT-5 gpt-5-all speed / latency No data input / output $0.0068/M / $0.0068/M | GPT-5.4 Mini gpt-5.4-mini-2026-03-17 speed / latency No data input / output $0.103/M / $0.616/M |
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.
| Guidance | GPT-5 | GPT-5.4 Mini |
|---|---|---|
| When to choose each model | GPT-5 GPT-5 does not clearly lead on the verified metrics here, so check provider-specific pricing before choosing. | GPT-5.4 Mini GPT-5.4 Mini is stronger when you prioritize Cheapest input price, Average speed, First-token latency, Free providers, Provider coverage, Recent tests. |
TL;DR: GPT-5.4 Mini leads across 82 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from GPT-5 vs GPT-5.4 Mini into nearby model comparisons with enough verified LMSpeed data.
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
