Data points: 82
The readout for GPT-5.4 Mini and GPT-5.4 Nano, before the detailed comparison sheet.
Decision read
GPT-5.4 Mini
GPT-5.4 Mini currently has the stronger profile, with verified wins split 5 to 1.
Evidence depth
82 data points
Includes 8 benchmark rows, 0 audit samples, and 8 provider examples.
Selection signal
Start with GPT-5.4 Mini
The charts below split 16 high-signal samples across speed, scores, and audit health.
Model compare GPT-5.4 Mini vs GPT-5.4 Nanogpt-5-4-mini-vs-gpt-5-4-nano | Model A GPT-5.4 Mini | Model B GPT-5.4 Nano |
|---|---|---|
| Overall leader | Leading | Contender |
| Verified metric wins | 5 wins | 1 wins |
| Where it leads | Cheapest input price, Average speed, Free providers, Provider coverage, Recent tests |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | GPT-5.4 Mini | GPT-5.4 Nano |
|---|---|---|
| Input price | $0.750/M#24 |
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GPT-5.4 Mini | GPT-5.4 Nano |
|---|---|---|
| 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-5.4 Mini | GPT-5.4 Nano |
|---|---|---|
15 tests | GPT-5.4 Mini speed / latency 201 tok/s / 1441ms input / output No data |
This report only uses LMSpeed data for GPT-5.4 Mini and GPT-5.4 Nano: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | GPT-5.4 Mini | GPT-5.4 Nano |
|---|---|---|
| When to choose each model | GPT-5.4 Mini GPT-5.4 Mini is stronger when you prioritize Cheapest input price, Average speed, Free providers, Provider coverage, Recent tests. | GPT-5.4 Nano GPT-5.4 Nano is stronger when you prioritize First-token latency. |
TL;DR: GPT-5.4 Mini leads across 82 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from GPT-5.4 Mini vs GPT-5.4 Nano into nearby model comparisons with enough verified LMSpeed data.
| First-token latency |
| Model metadata | GPT-5.4 Mini exposes 400K tokens; notable signals: Text input, Image input, File input, Text output. | GPT-5.4 Nano exposes 400K tokens; notable signals: Text input, Image input, File input, Text output. |
|---|---|---|
| Developer | OpenAI | OpenAI |
| Context window | 400K tokens | 400K tokens |
| Max output | 128K tokens | 128K tokens |
| Released | Mar 2026 | Mar 2026 |
| Modalities | Input FileImageText Output Text | Input FileImageText Output Text |
| Features | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputFile inputText outputTool callingStructured outputsJSON mode |
| Parameters | No data | No data |
| Tokenizer | GPT | GPT |
| Knowledge cutoff | 2025-08-31 | 2025-08-31 |
| OpenRouter ID | openai/gpt-5.4-mini | openai/gpt-5.4-nano |
| References | No data | No data |
| SciCode | 49.9%#13 | 46.9%#16 |
|---|
| GPQA | 87.5%#17 | 81.7%#50 |
|---|
| Output price | $4.50/M#34 | $1.25/M#19 |
|---|
| Output speed | 165.0 tok/s#22 | 148.7 tok/s#31 |
|---|
| Blended price | $1.69/M#48 | $0.463/M#23 |
|---|
| HLE | 26.6%#23 | 26.5%#24 |
|---|
| Time to first answer token | 3.95 s#47 | 2.46 s#44 |
|---|
GPT-5.4 Nano
speed / latency
147 tok/s / 4365ms
input / output
No data
发现AI15 tests | GPT-5.4 Mini speed / latency 108 tok/s / 1950ms input / output No data | GPT-5.4 Nano speed / latency N/A / N/A input / output No data |
|---|
Mars HK5 tests | GPT-5.4 Mini speed / latency 145 tok/s / 5776ms input / output No data | GPT-5.4 Nano speed / latency N/A / N/A input / output No data |
|---|
MyWebUI API5 tests | GPT-5.4 Mini speed / latency 98 tok/s / 4039ms input / output No data | GPT-5.4 Nano speed / latency N/A / N/A input / output No data |
|---|
ocool AI5 tests | GPT-5.4 Mini speed / latency N/A / N/A input / output No data | GPT-5.4 Nano speed / latency 118 tok/s / 1397ms input / output No data |
|---|
GPT-5.4 Mini gpt-5.4-mini speed / latency No data input / output $1.50/M / $9.00/M | GPT-5.4 Nano openai/gpt-5.4-nano speed / latency No data input / output $0/M / $0/M |
GPT-5.4 Mini gpt-5.4-mini speed / latency No data input / output $75.00/M / $450.00/M | GPT-5.4 Nano gpt-5.4-nano speed / latency No data input / output $0.0010/M / $0.0010/M |
GPT-5.4 Mini gpt-5.4-mini-2026-03-17 speed / latency No data input / output $0.031/M / $0.185/M | GPT-5.4 Nano gpt-5.4-nano-2026-03-17 speed / latency No data input / output $0.0082/M / $0.051/M |
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
