Data points: 80
The readout for Gemini 2.5 Pro and Gemini 3.1 Pro Preview, before the detailed comparison sheet.
Decision read
Gemini 2.5 Pro
Gemini 2.5 Pro currently has the stronger profile, with verified wins split 4 to 0.
Evidence depth
80 data points
Includes 9 benchmark rows, 0 audit samples, and 5 provider examples.
Selection signal
Start with Gemini 2.5 Pro
The charts below split 14 high-signal samples across speed, scores, and audit health.
Switch either side of this report to compare another model with the same LMSpeed data pipeline.
Select a different model to open a new comparison URL.
Model compare Gemini 2.5 Pro vs Gemini 3.1 Pro Previewgemini-2-5-pro-vs-gemini-3-1-pro-preview | Model A Gemini 2.5 Pro | Model B Gemini 3.1 Pro Preview |
|---|---|---|
| Overall leader | Leading | Contender |
| Verified metric wins | 4 wins | 0 wins |
| Where it leads | Cheapest input price, Free providers, Provider coverage, Recent tests |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
Compare benchmark category scores on a 0-100 scale. Select a category to inspect the gap.
Avg. score
Gemini 2.5 Pro
59.4
Avg. score
Gemini 3.1 Pro Preview
64.2
Selected category
Coding
Gemini 3.1 Pro Preview leads by 17.5
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Gemini 2.5 Pro
winner136.2 tok/s
Rank #32/113 · confidence 4
Gemini 3.1 Pro Preview
129.5 tok/s
Rank #35/113 · confidence 4
Gemini 2.5 Pro
winner19.71 s
Rank #77/113 · confidence 4
Gemini 3.1 Pro Preview
23.89 s
Rank #82/113 · confidence 4
Gemini 2.5 Pro
winner19.71 s
Rank #102/113 · confidence 4
Gemini 3.1 Pro Preview
23.89 s
Rank #105/113 · confidence 4
Gemini 2.5 Pro
winner$1.25/M
Rank #94/138 · confidence 4
Gemini 3.1 Pro Preview
$2.00/M
Rank #107/138 · confidence 4
Gemini 2.5 Pro
winner$3.44/M
Rank #101/138 · confidence 4
Gemini 3.1 Pro Preview
$4.50/M
Rank #111/138 · confidence 4
Gemini 2.5 Pro
winner$10.00/M
Rank #103/138 · confidence 4
Gemini 3.1 Pro Preview
$12.00/M
Rank #111/138 · confidence 4
Gemini 2.5 Pro
84.4%
Rank #33/152 · confidence 4
Gemini 3.1 Pro Preview
winner94.1%
Rank #2/152 · confidence 4
Gemini 2.5 Pro
21.1%
Rank #38/150 · confidence 4
Gemini 3.1 Pro Preview
winner44.7%
Rank #5/150 · confidence 4
Gemini 2.5 Pro
42.8%
Rank #30/149 · confidence 4
Gemini 3.1 Pro Preview
winner58.9%
Rank #2/149 · confidence 4
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Gemini 2.5 Pro | Gemini 3.1 Pro Preview |
|---|---|---|
| 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 2.5 Pro | Gemini 3.1 Pro Preview |
|---|---|---|
0 tests | Gemini 2.5 Pro speed / latency N/A / N/A input / output No data |
This report only uses LMSpeed data for Gemini 2.5 Pro and Gemini 3.1 Pro Preview: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | Gemini 2.5 Pro | Gemini 3.1 Pro Preview |
|---|---|---|
| When to choose each model | Gemini 2.5 Pro Gemini 2.5 Pro is stronger when you prioritize Cheapest input price, Free providers, Provider coverage, Recent tests. | Gemini 3.1 Pro Preview Gemini 3.1 Pro Preview does not clearly lead on the verified metrics here, so check provider-specific pricing before choosing. |
TL;DR: Gemini 2.5 Pro leads across 80 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from Gemini 2.5 Pro vs Gemini 3.1 Pro Preview into nearby model comparisons with enough verified LMSpeed data.
| No data |
| Model metadata | Gemini 2.5 Pro exposes 1.0M tokens; notable signals: Text input, Image input, File input, Audio input. | Gemini 3.1 Pro Preview exposes 1.0M tokens; notable signals: Text input, Image input, File input, Audio input. |
|---|---|---|
| Developer | ||
| Context window | 1.0M tokens | 1.0M tokens |
| Max output | 65.5K tokens | 65.5K tokens |
| Released | Jun 2025 | No data |
| Modalities | Input TextImageFileAudiovideo Output Text | Input AudioFileImageTextvideo Output Text |
| Features | Text inputImage inputFile inputAudio inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputFile inputAudio inputText outputTool calling |
| Parameters | No data | No data |
| Tokenizer | Gemini | Gemini |
| Knowledge cutoff | 2025-01-31 | No data |
| OpenRouter ID | google/gemini-2.5-pro | google/gemini-3.1-pro-preview |
| References | No data | No data |
Gemini 3.1 Pro Preview
speed / latency
N/A / N/A
input / output
No data
Nova AI0 tests | Gemini 2.5 Pro gemini-2.5-pro speed / latency N/A / N/A input / output $1.25/M / $10.00/M | Gemini 3.1 Pro Preview [次-流抗截]gemini-3.1-pro-preview speed / latency N/A / N/A input / output $0.050/M / $0.050/M |
|---|
RenRen API0 tests | Gemini 2.5 Pro [次满血]gemini-2.5-pro speed / latency N/A / N/A input / output $0.080/M / $0.080/M | Gemini 3.1 Pro Preview [次满血]gemini-3.1-pro-preview speed / latency N/A / N/A input / output $0.080/M / $0.080/M |
|---|
R的API小站0 tests | Gemini 2.5 Pro [AIS-F1][0.25/次]gemini-2.5-pro speed / latency N/A / N/A input / output $0.200/M / $0.200/M | Gemini 3.1 Pro Preview [C-F2][0.25/次]gemini-3.1-pro-preview-企 speed / latency N/A / N/A input / output $0.200/M / $0.200/M |
|---|
Soul 公益站0 tests | Gemini 2.5 Pro speed / latency N/A / N/A input / output No data | Gemini 3.1 Pro Preview speed / latency N/A / N/A input / output No data |
|---|
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
