Data points: 65
Model compare
Gemini 3.1 Pro vs GPT-4
The readout for Gemini 3.1 Pro and GPT-4, before the detailed comparison sheet.
Key Takeaways
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 96 to 4.
Evidence depth
65 data points
Includes 0 benchmark rows, 0 audit samples, and 10 provider examples.
Selection signal
Start with Gemini 3.1 Pro
The charts below split 10 high-signal samples across speed, scores, and audit health.
Change comparison
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.
Comparison sheet
This report only uses LMSpeed data for Gemini 3.1 Pro and GPT-4: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | Gemini 3.1 Pro | GPT-4 |
|---|---|---|
| Overall leader | Leading | Contender |
| Weighted overall score | 96.0 pts | 4.0 pts |
| Benchmark category leads | 3 categories | 0 categories |
| Operational advantages | Cheapest input price, Average speed, Free providers, Provider coverage | First-token latency |
| Context window | 1.0M tokens | 8.2K tokens |
| Max output | 65.5K tokens | 4.1K tokens |
| Modalities | Input AudioFileImageTextvideo Output Text | Input Text Output Text |
| Features | Text inputImage inputFile inputAudio inputText outputTool callingStructured outputsJSON modeReasoning | Text inputText outputTool callingStructured outputsJSON mode |
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 metadata
Model metadata
| Model compare | Gemini 3.1 Pro | GPT-4 |
|---|---|---|
| Developer | OpenAI | |
| Released | Feb 2026 | May 2023 |
| Parameters | No data | No data |
| Tokenizer | Gemini | GPT |
| Knowledge cutoff | No data | 2021-09-30 |
| OpenRouter ID | google/gemini-3.1-pro-preview | openai/gpt-4 |
| References | No data | No data |
When to choose each model
This report only uses LMSpeed data for Gemini 3.1 Pro and GPT-4: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
Gemini 3.1 Pro
Gemini 3.1 Pro is stronger in benchmark categories (Coding, Reasoning, Math) and operational dimensions (Cheapest input price, Average speed, Free providers, Provider coverage).
GPT-4
GPT-4 has these operational advantages: First-token latency.
Benchmark score comparison
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
Category performance
Compare benchmark category scores on a 0-100 scale. Select a category to inspect the gap.
- Model A coverage
- 8 / 8
- Model B coverage
- 3 / 8
- Shared
- 3 shared categories
Avg. score
Gemini 3.1 Pro
57
Avg. score
GPT-4
41.2
Agents
Gemini 3.1 Pro
Coding
Gemini 3.1 Pro leads by 11.0
Reasoning
Gemini 3.1 Pro leads by 20.6
Knowledge
Gemini 3.1 Pro
Math
Gemini 3.1 Pro leads by 13.9
Multilingual
Gemini 3.1 Pro
Multimodal
Gemini 3.1 Pro
Instruction following
Gemini 3.1 Pro
Professional benchmark details
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Professional benchmark details
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
No shared professional benchmark scores are available yet.
API audit comparison
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
API audit comparison
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Gemini 3.1 Pro | GPT-4 |
|---|---|---|
| No completed audits are available from shared providers yet. | ||
Provider examples
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
Provider examples
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | Gemini 3.1 Pro | GPT-4 |
|---|---|---|
TradingBase API10 tests | Gemini 3.1 Pro speed / latency 102 tok/s / 12933ms input / output No data | GPT-4 speed / latency N/A / N/A input / output No data |
小水管 API10 tests | Gemini 3.1 Pro speed / latency 101 tok/s / 15025ms input / output No data | GPT-4 speed / latency N/A / N/A input / output No data |
艾可API5 tests | Gemini 3.1 Pro speed / latency 70 tok/s / 18615ms input / output No data | GPT-4 speed / latency N/A / N/A input / output No data |
速创API5 tests | Gemini 3.1 Pro speed / latency 105 tok/s / 12723ms input / output No data | GPT-4 speed / latency N/A / N/A input / output No data |
42公益站0 tests | Gemini 3.1 Pro speed / latency N/A / N/A input / output No data | GPT-4 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-4 gpt-4 speed / latency No data input / output $0/request | |
Gemini 3.1 Pro gemini-3.1-pro-preview speed / latency No data input / output $0.0052/request | GPT-4 gpt-4-all speed / latency No data input / output $0.014/request | |
Gemini 3.1 Pro gemini-3.1-pro-preview-c speed / latency No data input / output $0.0055/request | GPT-4 gpt-4-0125-preview speed / latency No data input / output $2.05/M/$4.11/M | |
Gemini 3.1 Pro gemini-3.1-pro-preview speed / latency No data input / output $0.274/M/$1.64/M | GPT-4 gpt-4-all speed / latency No data input / output $0.011/request | |
Gemini 3.1 Pro gemini-3.1-pro-preview speed / latency No data input / output $0.274/M/$1.64/M | GPT-4 gpt-4-all speed / latency No data input / output $0.011/request |
FAQ
Weighted outcome: Gemini 3.1 Pro. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
- Why is this comparison indexable?
- It has 6 verifiable comparison points, and both models have pricing or benchmark data.
- Are missing metrics invented?
- No. Metrics without LMSpeed data are omitted from this report.