Data points: 62
The readout for Gemini 3.1 Flash Image and GPT-5.4, before the detailed comparison sheet.
Decision read
GPT-5.4
GPT-5.4 currently has the stronger profile, with verified wins split 0 to 4.
Evidence depth
62 data points
Includes 0 benchmark rows, 0 audit samples, and 9 provider examples.
Selection signal
Start with GPT-5.4
The charts below split 9 high-signal samples across speed, scores, and audit health.
Model compare Gemini 3.1 Flash Image vs GPT-5.4gemini-3-1-flash-image-vs-gpt-5-4 | Model A Gemini 3.1 Flash Image | Model B GPT-5.4 |
|---|---|---|
| Overall leader | Contender | Leading |
| Verified metric wins | 0 wins | 4 wins |
| Where it leads | No data | Cheapest input price, Free providers, Provider coverage, Recent tests |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | Gemini 3.1 Flash Image | GPT-5.4 |
|---|---|---|
| No shared benchmark metrics are available yet. | ||
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Gemini 3.1 Flash Image | GPT-5.4 |
|---|---|---|
| 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 | Gemini 3.1 Flash Image | GPT-5.4 |
|---|---|---|
50 tests | Gemini 3.1 Flash Image speed / latency N/A / N/A input / output No data |
This report only uses LMSpeed data for Gemini 3.1 Flash Image and GPT-5.4: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | Gemini 3.1 Flash Image | GPT-5.4 |
|---|---|---|
| When to choose each model | Gemini 3.1 Flash Image Gemini 3.1 Flash Image does not clearly lead on the verified metrics here, so check provider-specific pricing before choosing. | GPT-5.4 GPT-5.4 is stronger when you prioritize Cheapest input price, Free providers, Provider coverage, Recent tests. |
TL;DR: GPT-5.4 leads across 62 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from Gemini 3.1 Flash Image vs GPT-5.4 into nearby model comparisons with enough verified LMSpeed data.
| Model metadata | Gemini 3.1 Flash Image exposes 131.1K tokens; notable signals: Text input, Image input, Text output, Image output. | GPT-5.4 exposes 1.1M tokens; notable signals: Text input, Image input, File input, Text output. |
|---|---|---|
| Developer | OpenAI | |
| Context window | 131.1K tokens | 1.1M tokens |
| Max output | 65.5K tokens | 128K tokens |
| Released | Feb 2026 | Mar 2026 |
| Modalities | Input ImageText Output ImageText | Input TextImageFile Output Text |
| Features | Text inputImage inputText outputImage outputStructured outputsJSON modeReasoning | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
| Parameters | No data | No data |
| Tokenizer | Gemini | GPT |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | google/gemini-3.1-flash-image-preview | openai/gpt-5.4 |
| References | No data | No data |
GPT-5.4
speed / latency
50 tok/s / 7305ms
input / output
No data
0CHAT10 tests | Gemini 3.1 Flash Image gemini-3.1-flash-image-preview speed / latency N/A / N/A input / output $0.0072/M / $0.0072/M | GPT-5.4 gpt-5.4 speed / latency 51 tok/s / 2526ms input / output $0.084/M / $0.503/M |
|---|
Omini Api10 tests | Gemini 3.1 Flash Image speed / latency N/A / N/A input / output No data | GPT-5.4 speed / latency 51 tok/s / 1443ms input / output No data |
|---|
QQ Code10 tests | Gemini 3.1 Flash Image speed / latency N/A / N/A input / output No data | GPT-5.4 speed / latency 55 tok/s / 2903ms input / output No data |
|---|
GuaiHub5 tests | Gemini 3.1 Flash Image speed / latency N/A / N/A input / output No data | GPT-5.4 speed / latency 70 tok/s / 2961ms input / output No data |
|---|
Gemini 3.1 Flash Image gemini-3.1-flash-image speed / latency No data input / output $2.86/M / $2.86/M | GPT-5.4 gpt-5.4 speed / latency No data input / output $0/M / $0/M |
Gemini 3.1 Flash Image gemini-3.1-flash-image-preview-c speed / latency No data input / output $0.0021/M / $0.0021/M | GPT-5.4 gpt-5.4-xhigh speed / latency No data input / output $0.103/M / $0.616/M |
Gemini 3.1 Flash Image gemini-3.1-flash-image-preview speed / latency No data input / output $0.0096/M / $0.0096/M | GPT-5.4 gpt-5.4-high speed / latency No data input / output $0.357/M / $2.14/M |
Gemini 3.1 Flash Image gemini-3.1-flash-image-preview speed / latency No data input / output $0.011/M / $0.011/M | GPT-5.4 gpt-5.4 speed / latency No data input / output $10.27/M / $61.64/M |
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
