Data points: 54
Model compare
The readout for Gemini 3.1 Pro and GPT-4o Image, before the detailed comparison sheet.
Weighted outcome: Gemini 3.1 Pro. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
Gemini 3.1 Pro
Gemini 3.1 Pro has the higher weighted result; Model A / B score 100 to 0.
Evidence depth
54 data points
Includes 0 benchmark rows, 0 audit samples, and 6 provider examples.
Selection signal
Start with Gemini 3.1 Pro
The charts below split 6 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.
This report only uses LMSpeed data for Gemini 3.1 Pro and GPT-4o Image: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | Gemini 3.1 Pro | GPT-4o Image |
|---|---|---|
| Overall leader | Leading | Contender |
| Weighted overall score | 100.0 pts | 0.0 pts |
| Benchmark category leads | 0 categories | 0 categories |
| Operational advantages | Cheapest input price, Free providers, Provider coverage | No data |
| Context window | 1.0M tokens | No data |
| Max output | 65.5K tokens | No data |
| Modalities | Input AudioFileImageTextvideo Output |
The overall result weights benchmark capability categories at 80% and price, API speed/latency, and availability at 20%. Recent test volume does not affect the winner, and missing benchmark categories are excluded.
| Model compare | Gemini 3.1 Pro | GPT-4o Image |
|---|---|---|
| Developer | OpenAI | |
| Released | Feb 2026 | No data |
| Parameters | No data | No data |
| Tokenizer | Gemini | No data |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | google/gemini-3.1-pro-preview | No data |
| References | No data | No data |
This report only uses LMSpeed data for Gemini 3.1 Pro and GPT-4o Image: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
Gemini 3.1 Pro
Gemini 3.1 Pro has these operational advantages: Cheapest input price, Free providers, Provider coverage.
GPT-4o Image
GPT-4o Image does not clearly lead in the benchmark or operational dimensions shared by both models.
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
56.3
Avg. score
GPT-4o Image
-
Gemini 3.1 Pro
Gemini 3.1 Pro
Gemini 3.1 Pro
Gemini 3.1 Pro
Gemini 3.1 Pro
Gemini 3.1 Pro
Gemini 3.1 Pro
Gemini 3.1 Pro
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
No shared professional benchmark scores are available yet.
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Gemini 3.1 Pro | GPT-4o Image |
|---|---|---|
| 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 | GPT-4o Image |
|---|---|---|
5 tests | Gemini 3.1 Pro speed / latency 69 tok/s / 19702ms input / output No data | GPT-4o Image speed / latency N/A / N/A input / output No data |
5 tests | Gemini 3.1 Pro speed / latency 70 tok/s / 18615ms input / output No data | GPT-4o Image speed / latency N/A / N/A input / output No data |
5 tests | Gemini 3.1 Pro speed / latency 105 tok/s / 12723ms input / output No data | GPT-4o Image speed / latency N/A / N/A input / output No data |
0 tests | Gemini 3.1 Pro speed / latency N/A / N/A input / output No data | GPT-4o Image speed / latency N/A / N/A input / output No data |
0 tests | Gemini 3.1 Pro speed / latency N/A / N/A input / output No data | GPT-4o Image speed / latency N/A / N/A input / output No data |
Gemini 3.1 Pro gemini-3.1-pro-preview speed / latency No data input / output $0/request | GPT-4o Image gpt-4o-image speed / latency No data input / output $0.392/request |
Weighted outcome: Gemini 3.1 Pro. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
| No data |
| Features | Text inputImage inputFile inputAudio inputText outputTool callingStructured outputsJSON modeReasoning | None listed |
|---|
