Gemini 3.5 Flash vs GPT-4.1
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.
Gemini 3.5 Flash vs GPT-4.1: side by side
| Spec | Gemini 3.5 Flash | GPT-4.1 | Winner |
|---|---|---|---|
| Intelligence | 45.4 | 19.4 | Gemini 3.5 Flash |
| Output speed | 157 t/s | 119 t/s | Gemini 3.5 Flash |
| Output price | $9.00/1M | $8.00/1M | GPT-4.1 |
| Context | 1049K | 1048K | Gemini 3.5 Flash |
| Params | — | — | Tie |
| Provider | OpenAI | Tie |
Gemini 3.5 Flash
Pros
- +High speed and efficiency
- +Strong multimodal integration
- +Large context window support
Cons
- –Trades depth for speed on complex tasks
- –Variable performance on specialized domains
- –Context utilization depends on task
GPT-4.1
Pros
- +Handles very large context windows
- +Processes images, text, and files together
- +Strong reasoning from OpenAI GPT lineage
Cons
- –Closed-source with no public weights
- –May hallucinate on complex tasks
- –High compute cost for full context
Frequently asked questions
It depends on your needs. Gemini 3.5 Flash and GPT-4.1 are both multimodal models; the comparison table above shows where each one leads on the metrics that matter. See the verdict for a recommendation.