Data points: 67
The readout for Gemini 3.1 Flash Image and Gemini 3.1 Pro, before the detailed comparison sheet.
Decision read
Gemini 3.1 Pro
Gemini 3.1 Pro currently has the stronger profile, with verified wins split 0 to 4.
Evidence depth
67 data points
Includes 0 benchmark rows, 1 audit samples, and 8 provider examples.
Selection signal
Start with Gemini 3.1 Pro
The charts below split 9 high-signal samples across speed, scores, and audit health.
Model compare Gemini 3.1 Flash Image vs Gemini 3.1 Progemini-3-1-flash-image-vs-gemini-3-1-pro | Model A Gemini 3.1 Flash Image | Model B Gemini 3.1 Pro |
|---|---|---|
| Overall leader | Contender | Leading |
| Verified metric wins | 0 wins | 4 wins |
| Where it leads | No data |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | Gemini 3.1 Flash Image | Gemini 3.1 Pro |
|---|---|---|
| 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 | Gemini 3.1 Pro |
|---|---|---|
Winner: Gemini 3.1 Pro | Gemini 3.1 Flash Image gemini-3.1-flash-image-preview No audit yet | Gemini 3.1 Pro gemini-3.1-pro-preview |
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | Gemini 3.1 Flash Image | Gemini 3.1 Pro |
|---|---|---|
10 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 Gemini 3.1 Pro: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | Gemini 3.1 Flash Image | Gemini 3.1 Pro |
|---|---|---|
| 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. | Gemini 3.1 Pro Gemini 3.1 Pro is stronger when you prioritize Cheapest input price, Free providers, Provider coverage, Recent tests. |
TL;DR: Gemini 3.1 Pro leads across 67 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from Gemini 3.1 Flash Image vs Gemini 3.1 Pro into nearby model comparisons with enough verified LMSpeed data.
| Cheapest input price, Free providers, Provider coverage, Recent tests |
| Model metadata | Gemini 3.1 Flash Image exposes 131.1K tokens; notable signals: Text input, Image input, Text output, Image output. | Gemini 3.1 Pro exposes 1.0M tokens; notable signals: Text input, Image input, File input, Audio input. |
|---|---|---|
| Developer | ||
| Context window | 131.1K tokens | 1.0M tokens |
| Max output | 65.5K tokens | 65.5K tokens |
| Released | Feb 2026 | Feb 2026 |
| Modalities | Input ImageText Output ImageText | Input AudioFileImageTextvideo Output Text |
| Features | Text inputImage inputText outputImage outputStructured outputsJSON modeReasoning | Text inputImage inputFile inputAudio inputText outputTool callingStructured outputsJSON mode |
| Parameters | No data | No data |
| Tokenizer | Gemini | Gemini |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | google/gemini-3.1-flash-image-preview | google/gemini-3.1-pro-preview |
| References | No data | No data |
Audit score
79
Gemini 3.1 Pro
speed / latency
102 tok/s / 12933ms
input / output
No data
AIHubMix5 tests | Gemini 3.1 Flash Image speed / latency N/A / N/A input / output No data | Gemini 3.1 Pro speed / latency 70 tok/s / 25059ms input / output No data |
|---|
Hi API5 tests | Gemini 3.1 Flash Image speed / latency N/A / N/A input / output No data | Gemini 3.1 Pro speed / latency 70 tok/s / 23273ms input / output No data |
|---|
Tokeness5 tests | Gemini 3.1 Flash Image speed / latency N/A / N/A input / output No data | Gemini 3.1 Pro speed / latency 98 tok/s / 12325ms input / output No data |
|---|
小水管 API5 tests | Gemini 3.1 Flash Image gemini-3.1-flash-image speed / latency N/A / N/A input / output $2.86/M / $2.86/M | Gemini 3.1 Pro gemini-3.1-pro-preview speed / latency 113 tok/s / 15704ms input / output $0/M / $0/M |
|---|
Gemini 3.1 Flash Image gemini-3.1-flash-image speed / latency No data input / output $0.068/M / $0.068/M | Gemini 3.1 Pro gemini-3.1-pro-preview speed / latency No data input / output $0.0001/M / $0.0001/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 | Gemini 3.1 Pro gemini-3.1-pro-preview-customtools speed / latency No data input / output $0.082/M / $0.493/M |
Gemini 3.1 Flash Image gemini-3.1-flash-image-2K speed / latency No data input / output $0.014/M / $0.014/M | Gemini 3.1 Pro gemini-3.1-pro-preview speed / latency No data input / output $0.0041/M / $0.0041/M |
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
