Gemini 3.1 Pro Preview vs GPT-5.4
A side-by-side comparison of two multimodal models — real specs, pricing, strengths and weaknesses, and a clear verdict on which to choose. Kept current by our agents.
Quick verdict: which should you choose?
Choose Gemini 3.1 Pro Preview if you need
- ✓Native audio, image, video, and text integration in a single model
- ✓Lower output cost at $12 per million tokens
- ✓Up to 1M token contexts with strong multimodal document analysis
- ✓Preview-stage tasks where broad modality coverage matters more than peak speed
Choose GPT-5.4 if you need
- ✓Highest intelligence index (51.4) for complex multimodal reasoning
- ✓Faster output at 157.46 tokens per second
- ✓Seamless text-image-file workflows with 1.05M token context
- ✓Flexible large-scale document tasks where speed and intelligence are prioritized
Verdict
GPT-5.4 leads in raw intelligence (51.4 vs 46.5) and output speed (157.46 t/s vs 128.71 t/s) while offering a marginally larger context window. Gemini 3.1 Pro Preview wins on price ($12 vs $15 per million tokens) and provides native audio and video support that GPT-5.4 lacks. Both handle million-token multimodal document tasks effectively, but GPT-5.4 edges ahead for performance-critical workflows.
Gemini 3.1 Pro Preview vs GPT-5.4: side by side
| Spec | Gemini 3.1 Pro Preview | GPT-5.4 | Winner |
|---|---|---|---|
| Intelligence | 46.5 | 51.4 | GPT-5.4 |
| Output speed | 129 t/s | 157 t/s | GPT-5.4 |
| Output price | $12.00/1M | $15.00/1M | Gemini 3.1 Pro Preview |
| Context | 1049K | 1050K | GPT-5.4 |
| Params | — | — | Tie |
| Provider | OpenAI | Tie |
Detailed analysis
Intelligence
Winner: GPT-5.4GPT-5.4 scores 51.4 on the intelligence index compared with Gemini 3.1 Pro Preview's 46.5. This gap favors GPT-5.4 on complex multimodal reasoning tasks. Both models remain proprietary with unknown parameter counts.
Speed & Cost
Winner: GPT-5.4GPT-5.4 delivers 157.46 tokens per second versus Gemini's 128.71 t/s. Gemini undercuts GPT-5.4 on price at $12 versus $15 per million output tokens. Context size is nearly identical at roughly 1M tokens.
Modalities
Winner: Gemini 3.1 Pro PreviewGemini 3.1 Pro Preview offers native support for audio, image, video, and text. GPT-5.4 supports text, image, and files but lacks native audio or video. Both excel at large-scale document analysis.
Context Handling
Winner: TieGemini lists 1,048,576 tokens while GPT-5.4 lists 1,050,000. Both are described as effective for million-token multimodal workloads. Large contexts may increase latency or resource use on either model.
Gemini 3.1 Pro Preview
Pros
- +Handles up to 1M token contexts
- +Native support for audio, image, video, and text
- +Strong integration of multiple modalities
Cons
- –Preview model may show inconsistent outputs
- –High resource use with maximum context
- –Requires verification on complex tasks
GPT-5.4
Pros
- +Handles extremely large contexts
- +Seamless text-image-file integration
- +Strong at document-level tasks
Cons
- –No native audio or video support
- –Large context can increase latency
- –May need careful prompting for complex tasks
Summary: Gemini 3.1 Pro Preview vs GPT-5.4
Choose GPT-5.4 when maximum intelligence and speed are required. Select Gemini 3.1 Pro Preview when native audio/video support and lower cost are priorities. Both deliver comparable million-token multimodal document capabilities.
Frequently asked questions
GPT-5.4 scores higher on intelligence and speed while Gemini 3.1 Pro Preview provides native audio and video plus lower price; the better choice depends on whether performance metrics or modality breadth matter most.