Data points: 63
The readout for Gemini 3.1 Flash Image and GPT-5, before the detailed comparison sheet.
Decision read
GPT-5
GPT-5 currently has the stronger profile, with verified wins split 0 to 4.
Evidence depth
63 data points
Includes 0 benchmark rows, 0 audit samples, and 10 provider examples.
Selection signal
Start with GPT-5
The charts below split 10 high-signal samples across speed, scores, and audit health.
Model compare Gemini 3.1 Flash Image vs GPT-5gemini-3-1-flash-image-vs-gpt-5 | Model A Gemini 3.1 Flash Image | Model B GPT-5 |
|---|---|---|
| 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 |
|---|---|---|
| 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 |
|---|---|---|
| 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 |
|---|---|---|
20 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: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | Gemini 3.1 Flash Image | GPT-5 |
|---|---|---|
| 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 GPT-5 is stronger when you prioritize Cheapest input price, Free providers, Provider coverage, Recent tests. |
TL;DR: GPT-5 leads across 63 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from Gemini 3.1 Flash Image vs GPT-5 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 exposes 128K tokens; notable signals: Text input, Image input, File input, Text output. |
|---|---|---|
| Developer | OpenAI | |
| Context window | 131.1K tokens | 128K tokens |
| Max output | 65.5K tokens | 16.4K tokens |
| Released | Feb 2026 | Aug 2025 |
| Modalities | Input ImageText Output ImageText | Input FileImageText Output Text |
| Features | Text inputImage inputText outputImage outputStructured outputsJSON modeReasoning | Text inputImage inputFile inputText outputStructured outputsJSON mode |
| Parameters | No data | No data |
| Tokenizer | Gemini | GPT |
| Knowledge cutoff | No data | 2024-09-30 |
| OpenRouter ID | google/gemini-3.1-flash-image-preview | openai/gpt-5-chat |
| References | No data | No data |
GPT-5
speed / latency
95 tok/s / 1234ms
input / output
No data
EasyMore5 tests | Gemini 3.1 Flash Image speed / latency N/A / N/A input / output No data | GPT-5 speed / latency 46 tok/s / 6577ms input / output No data |
|---|
N1N5 tests | Gemini 3.1 Flash Image speed / latency N/A / N/A input / output No data | GPT-5 speed / latency 102 tok/s / 948ms input / output No data |
|---|
SkyAI5 tests | Gemini 3.1 Flash Image speed / latency N/A / N/A input / output No data | GPT-5 speed / latency 169 tok/s / 1894ms input / output No data |
|---|
Undy API5 tests | Gemini 3.1 Flash Image speed / latency N/A / N/A input / output No data | GPT-5 speed / latency 131 tok/s / 743ms 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 gpt-5-chat-latest 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 gpt-5-chat-latest speed / latency No data input / output $0.051/M / $0.411/M |
Gemini 3.1 Flash Image gemini-3.1-flash-image-preview speed / latency No data input / output $0.070/M / $0.070/M | GPT-5 gpt-5 speed / latency No data input / output $0.010/M / $0.010/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 gpt-5-search-api-2025-10-14 speed / latency No data input / output $0.171/M / $1.37/M |
Gemini 3.1 Flash Image gemini-3.1-flash-image speed / latency No data input / output $0.014/M / $0.014/M | GPT-5 gpt-5 speed / latency No data input / output $0.036/M / $0.285/M |
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
