Gemini 2.5 Flash Lite 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 2.5 Flash Lite if you need
- ✓Choose Gemini 2.5 Flash Lite if you need maximum output speed at 269.76 t/s for high-volume tasks.
- ✓Choose Gemini 2.5 Flash Lite if you need native audio and video alongside text and image.
- ✓Choose Gemini 2.5 Flash Lite if you need the lowest price at $0.4 per million tokens.
- ✓Choose Gemini 2.5 Flash Lite if you need efficient handling of very large contexts on lightweight workloads.
Choose GPT-5.4 if you need
- ✓Choose GPT-5.4 if you need the highest intelligence index at 51.4 for complex reasoning.
- ✓Choose GPT-5.4 if you need strong document-level text, image, and file integration.
- ✓Choose GPT-5.4 if you need flexible multimodal workflows focused on large-scale text and files.
- ✓Choose GPT-5.4 if you need a slightly larger 1,050,000-token context for text-image-file tasks.
Verdict
Gemini 2.5 Flash Lite leads on speed, price, and native audio/video support for high-volume multimodal workloads, while GPT-5.4 leads decisively on intelligence index and document-level text-image-file tasks. Gemini's 269.76 t/s and $0.4/1M make it far more efficient than GPT-5.4's 156.68 t/s and $15/1M, though its 11.4 intelligence index trails GPT-5.4's 51.4 by a wide margin. Context windows are nearly identical, but Gemini adds audio and video that GPT-5.4 lacks.
Gemini 2.5 Flash Lite vs GPT-5.4: side by side
| Spec | Gemini 2.5 Flash Lite | GPT-5.4 | Winner |
|---|---|---|---|
| Intelligence | 11.4 | 51.4 | GPT-5.4 |
| Output speed | 270 t/s | 157 t/s | Gemini 2.5 Flash Lite |
| Output price | $0.40/1M | $15.00/1M | Gemini 2.5 Flash Lite |
| 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 versus Gemini 2.5 Flash Lite's 11.4. This gap favors GPT-5.4 on complex or nuanced tasks where Gemini's lite design trades depth for efficiency.
Speed
Winner: Gemini 2.5 Flash LiteGemini 2.5 Flash Lite outputs at 269.76 tokens per second compared with GPT-5.4's 156.68 t/s. The speed advantage aligns with its optimization for high-volume, low-latency workloads.
Pricing
Winner: Gemini 2.5 Flash LiteGemini 2.5 Flash Lite costs $0.4 per million tokens while GPT-5.4 costs $15 per million tokens. The 37.5x price difference makes Gemini far more economical for large-scale usage.
Multimodal Capabilities
Winner: Gemini 2.5 Flash LiteGemini 2.5 Flash Lite supports text, image, audio, and video; GPT-5.4 supports text, image, and files but lacks native audio or video. Gemini therefore covers a broader multimodal range.
Gemini 2.5 Flash Lite
Pros
- +Optimized for speed and efficiency
- +Strong multimodal integration
- +Handles very large contexts effectively
Cons
- –Reduced depth on highly complex reasoning
- –May underperform full-scale models on nuanced tasks
- –Lite design trades capability for cost and latency
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 2.5 Flash Lite vs GPT-5.4
Select Gemini 2.5 Flash Lite when speed, cost, and audio/video support matter most for high-volume work. Select GPT-5.4 when maximum intelligence and document-oriented text-image-file performance are required despite higher cost and slower speed.
Frequently asked questions
Neither is universally better; Gemini 2.5 Flash Lite wins on speed, price, and audio/video support while GPT-5.4 wins on intelligence and document tasks.