Data points: 113
The readout for Gemini 3.1 Pro and O3 Mini, before the detailed comparison sheet.
Decision read
Gemini 3.1 Pro
Gemini 3.1 Pro currently has the stronger profile, with verified wins split 4 to 1.
Evidence depth
113 data points
Includes 24 benchmark rows, 0 audit samples, and 9 provider examples.
Selection signal
Start with Gemini 3.1 Pro
The charts below split 33 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 3.1 Pro vs O3 Minigemini-3-1-pro-vs-o3-mini | Model A Gemini 3.1 Pro | Model B O3 Mini |
|---|---|---|
| Overall leader | Leading | Contender |
| Verified metric wins | 4 wins | 1 wins |
| Where it leads | Average speed, 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 3.1 Pro
65.2
Avg. score
O3 Mini
59.2
Selected category
Agents
Gemini 3.1 Pro leads by 28.4
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Gemini 3.1 Pro
winner88.0
Rank #5/82 · confidence 3 · eval date 2026-02-19
O3 Mini
55.0
Rank #43/82 · confidence 1 · eval date 2025-01-31
Gemini 3.1 Pro
135.2 tok/s
Rank #22/78 · confidence 4
O3 Mini
winner224.5 tok/s
Rank #4/78 · confidence 4
Gemini 3.1 Pro
18.53 s
Rank #51/78 · confidence 4
O3 Mini
winner15.30 s
Rank #48/78 · confidence 4
Gemini 3.1 Pro
18.53 s
Rank #67/78 · confidence 4
O3 Mini
winner15.30 s
Rank #65/78 · confidence 4
Gemini 3.1 Pro
$12.00/M
Rank #73/95 · confidence 4
O3 Mini
winner$4.40/M
Rank #56/95 · confidence 4
Gemini 3.1 Pro
$4.50/M
Rank #73/95 · confidence 4
O3 Mini
winner$1.93/M
Rank #57/95 · confidence 4
Gemini 3.1 Pro
$2.00/M
Rank #72/95 · confidence 4
O3 Mini
winner$1.10/M
Rank #58/95 · confidence 4
Gemini 3.1 Pro
winner96.4
Rank #2/57 · confidence 3 · eval date 2026-02-19
O3 Mini
68.0
Rank #19/57 · confidence 1 · eval date 2025-01-31
Gemini 3.1 Pro
winner94.1%
Rank #2/103 · confidence 4
O3 Mini
77.3%
Rank #54/103 · confidence 4
Gemini 3.1 Pro
winner44.7%
Rank #5/103 · confidence 4
O3 Mini
12.3%
Rank #52/103 · confidence 4
Gemini 3.1 Pro
winner68.8
Rank #1/61 · confidence 3 · eval date 2026-02-19
O3 Mini
17.9
Rank #54/61 · confidence 1 · eval date 2025-01-31
Gemini 3.1 Pro
winner58.9
Rank #1/63 · confidence 3 · eval date 2026-02-19
O3 Mini
39.9
Rank #39/63 · confidence 1 · eval date 2025-01-31
Gemini 3.1 Pro
winner58.9%
Rank #2/101 · confidence 4
O3 Mini
39.8%
Rank #49/101 · confidence 4
Gemini 3.1 Pro
winner93.2
Rank #4/69 · confidence 3 · eval date 2026-02-19
O3 Mini
48.5
Rank #45/69 · confidence 1 · eval date 2025-01-31
Gemini 3.1 Pro
winner53.8
Rank #4/59 · confidence 3 · eval date 2026-02-19
O3 Mini
6.8
Rank #54/59 · confidence 1 · eval date 2025-01-31
Gemini 3.1 Pro
winner94.1
Rank #1/63 · confidence 3 · eval date 2026-02-19
O3 Mini
74.8
Rank #44/63 · confidence 1 · eval date 2025-01-31
Gemini 3.1 Pro
winner44.7
Rank #2/63 · confidence 3 · eval date 2026-02-19
O3 Mini
8.7
Rank #42/63 · confidence 1 · eval date 2025-01-31
Gemini 3.1 Pro
winner46.5
Rank #5/66 · confidence 3 · eval date 2026-02-19
O3 Mini
19.0
Rank #51/66 · confidence 1 · eval date 2025-01-31
Gemini 3.1 Pro
winner93.3
Rank #6/67 · confidence 3 · eval date 2026-02-19
O3 Mini
60.7
Rank #36/67 · confidence 1 · eval date 2025-01-31
Gemini 3.1 Pro
winner100.0
Rank #1/50 · confidence 3 · eval date 2026-02-19
O3 Mini
44.8
Rank #35/50 · confidence 1 · eval date 2025-01-31
Gemini 3.1 Pro
winner84.0
Rank #10/60 · confidence 3 · eval date 2026-02-19
O3 Mini
65.6
Rank #26/60 · confidence 1 · eval date 2025-01-31
Gemini 3.1 Pro
winner93.2
Rank #6/56 · confidence 3 · eval date 2026-02-19
O3 Mini
85.3
Rank #13/56 · confidence 1 · eval date 2025-01-31
Gemini 3.1 Pro
winner95.6
Rank #9/58 · confidence 3 · eval date 2026-02-19
O3 Mini
28.7
Rank #51/58 · confidence 1 · eval date 2025-01-31
Gemini 3.1 Pro
winner66.9
Rank #21/69 · confidence 3 · eval date 2026-02-19
O3 Mini
60.6
Rank #24/69 · confidence 1 · eval date 2025-01-31
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Gemini 3.1 Pro | O3 Mini |
|---|---|---|
| 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 Pro | O3 Mini |
|---|---|---|
25 tests | Gemini 3.1 Pro speed / latency N/A / N/A input / output No data |
This report only uses LMSpeed data for Gemini 3.1 Pro and O3 Mini: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | Gemini 3.1 Pro | O3 Mini |
|---|---|---|
| When to choose each model | Gemini 3.1 Pro Gemini 3.1 Pro is stronger when you prioritize Average speed, Free providers, Provider coverage, Recent tests. | O3 Mini O3 Mini is stronger when you prioritize First-token latency. |
TL;DR: Gemini 3.1 Pro leads across 113 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from Gemini 3.1 Pro vs O3 Mini into nearby model comparisons with enough verified LMSpeed data.
| First-token latency |
| Model metadata | Gemini 3.1 Pro exposes 1.0M tokens; notable signals: Text input, Image input, File input, Audio input. | O3 Mini exposes 200K tokens; notable signals: Text input, File input, Text output, Tool calling. |
|---|---|---|
| Developer | OpenAI | |
| Context window | 1.0M tokens | 200K tokens |
| Max output | 65.5K tokens | 100K tokens |
| Released | Feb 2026 | Feb 2025 |
| Modalities | Input AudioFileImageTextvideo Output Text | Input TextFile Output Text |
| Features | Text inputImage inputFile inputAudio inputText outputTool callingStructured outputsJSON modeReasoning | Text inputFile inputText outputTool callingStructured outputsJSON mode |
| Parameters | No data | No data |
| Tokenizer | Gemini | GPT |
| Knowledge cutoff | No data | 2023-10-31 |
| OpenRouter ID | google/gemini-3.1-pro-preview | openai/o3-mini-high |
| References | No data | No data |
O3 Mini
speed / latency
66 tok/s / 6491ms
input / output
No data
ZetaTechs API6 tests | Gemini 3.1 Pro speed / latency N/A / N/A input / output No data | O3 Mini speed / latency 44 tok/s / 17418ms input / output No data |
|---|
AIHubMix5 tests | Gemini 3.1 Pro speed / latency 70 tok/s / 25059ms input / output No data | O3 Mini speed / latency N/A / N/A input / output No data |
|---|
N1N5 tests | Gemini 3.1 Pro speed / latency N/A / N/A input / output No data | O3 Mini speed / latency 117 tok/s / 4809ms input / output No data |
|---|
艾可API5 tests | Gemini 3.1 Pro speed / latency 70 tok/s / 18615ms input / output No data | O3 Mini speed / latency N/A / N/A input / output No data |
|---|
Gemini 3.1 Pro gemini-3.1-pro-preview-c speed / latency No data input / output $0.0055/M / $0.0055/M | O3 Mini o3-mini-medium speed / latency No data input / output $0.151/M / $0.603/M |
Gemini 3.1 Pro gemini-3.1-pro-preview speed / latency No data input / output $0.014/M / $0.014/M | O3 Mini o3-mini-high-all speed / latency No data input / output $10.27/M / $41.10/M |
Gemini 3.1 Pro gemini-3.1-pro speed / latency No data input / output $0.027/M / $0.164/M | O3 Mini o3-mini-high speed / latency No data input / output $0.021/M / $0.082/M |
Gemini 3.1 Pro gemini-3.1-pro-preview-customtools speed / latency No data input / output $0.082/M / $0.493/M | O3 Mini o3-mini-medium speed / latency No data input / output $0.045/M / $0.181/M |
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
