Gemini 3.1 Flash Lite vs GPT-5.4 Pro
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 Flash Lite if you need
- ✓high output speed and low latency at 310.24 t/s
- ✓very low cost at $1.5 per million tokens
- ✓native image and video handling in a lightweight package
- ✓resource-efficient inference over 1M-token contexts
Choose GPT-5.4 Pro if you need
- ✓advanced reasoning over extended multimodal contexts
- ✓strong integration of text, image, and file data
- ✓versatile document and visual task handling
- ✓maximum-length input processing despite higher latency
Verdict
Gemini 3.1 Flash Lite leads decisively on speed (310.24 t/s) and price ($1.5/M vs $180/M) while matching GPT-5.4 Pro's ~1M context and adding native video support. GPT-5.4 Pro shows stronger claims for advanced reasoning and file integration but lacks any published speed, intelligence score, or audio/video capabilities. The choice hinges on whether efficiency and cost or unquantified reasoning depth matter most.
Gemini 3.1 Flash Lite vs GPT-5.4 Pro: side by side
| Spec | Gemini 3.1 Flash Lite | GPT-5.4 Pro | Winner |
|---|---|---|---|
| Intelligence | 33.5 | — | Tie |
| Output speed | 310 t/s | — | Tie |
| Output price | $1.50/1M | $180.00/1M | Gemini 3.1 Flash Lite |
| Context | 1049K | 1050K | GPT-5.4 Pro |
| Params | — | — | Tie |
| Type | Proprietary | Proprietary | Tie |
| Provider | OpenAI | Tie |
Detailed analysis
Speed
Winner: Gemini 3.1 Flash LiteGemini 3.1 Flash Lite publishes a concrete output speed of 310.24 tokens per second. GPT-5.4 Pro provides no speed figure and explicitly notes higher latency on maximum-length inputs.
Pricing
Winner: Gemini 3.1 Flash LiteGemini 3.1 Flash Lite costs $1.5 per million output tokens. GPT-5.4 Pro costs $180 per million output tokens, making it 120 times more expensive on the given data.
Context & Scale
Winner: TieBoth models support roughly 1M tokens (Gemini 1,048,576; GPT-5.4 Pro 1,050,000). Gemini emphasizes resource-efficient inference while GPT highlights advanced reasoning over extended contexts.
Modality Support
Winner: Gemini 3.1 Flash LiteGemini 3.1 Flash Lite lists native text, image, and video support. GPT-5.4 Pro covers text, image, and files but states no native audio or video support.
Gemini 3.1 Flash Lite
Pros
- +High speed and low latency
- +Handles very large context windows
- +Broad modality support in a lightweight package
- +Resource-efficient inference
Cons
- –Reduced depth on highly complex reasoning tasks
- –Lite design trades peak capability for speed
- –May require more guidance on nuanced or creative outputs
GPT-5.4 Pro
Pros
- +Handles very large inputs across modalities
- +Strong integration of text, image, and file data
- +Advanced reasoning over extended contexts
- +Versatile for document and visual tasks
Cons
- –Higher latency on maximum-length inputs
- –No native audio or video support
- –Proprietary access with usage constraints
Summary: Gemini 3.1 Flash Lite vs GPT-5.4 Pro
Select Gemini 3.1 Flash Lite when speed, cost, and video support are priorities. Choose GPT-5.4 Pro only when its unmeasured reasoning depth and file integration justify the 120x price premium and missing modalities.
Frequently asked questions
Gemini 3.1 Flash Lite is faster at 310.24 t/s and far cheaper at $1.5/M tokens versus GPT-5.4 Pro's unknown speed and $180/M price.