Gemini 2.5 Pro vs GPT-5 Mini
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 Pro if you need
- ✓lower per-token cost at $2 per million outputs
- ✓higher intelligence index of 30.9 for nuanced multimodal reasoning
- ✓efficient handling of very large contexts up to 400k tokens
- ✓compact design for complex multi-turn text-image-file tasks
Choose GPT-5 Mini if you need
- ✓faster output speed of 133.38 tokens per second
- ✓largest context window at 1,048,576 tokens for extended inputs
- ✓native integration of text with visual and audio data
- ✓strong performance on complex multi-part files
Verdict
GPT-5 Mini leads with a higher intelligence index and four-times-lower price while handling large multimodal contexts efficiently. Gemini 2.5 Pro counters with faster output speed and a much larger context window suited to extended inputs. GPT-5 Mini wins on cost-efficiency for complex multi-turn tasks; Gemini 2.5 Pro excels when maximum context length and raw speed matter most.
Gemini 2.5 Pro vs GPT-5 Mini: side by side
| Spec | Gemini 2.5 Pro | GPT-5 Mini | Winner |
|---|---|---|---|
| Intelligence | 27 | 30.9 | GPT-5 Mini |
| Output speed | 133 t/s | 100 t/s | Gemini 2.5 Pro |
| Output price | $10.00/1M | $2.00/1M | GPT-5 Mini |
| Context | 1049K | 400K | Gemini 2.5 Pro |
| Params | — | — | Tie |
| Provider | OpenAI | Tie |
Detailed analysis
Intelligence
Winner: GPT-5 MiniGPT-5 Mini scores 30.9 on the intelligence index versus Gemini 2.5 Pro's 27. This edge supports more capable handling of complex multi-turn multimodal tasks. Gemini remains competitive but trails on this metric.
Speed
Winner: Gemini 2.5 ProGemini 2.5 Pro delivers 133.38 tokens per second compared with GPT-5 Mini's 100.46. The speed advantage favors Gemini for high-volume output needs. GPT-5 Mini is slower but still practical for most workloads.
Pricing
Winner: GPT-5 MiniGPT-5 Mini costs $2 per million output tokens while Gemini 2.5 Pro costs $10. The fourfold price difference makes GPT-5 Mini the clear choice for budget-conscious deployments. Both are proprietary models from major providers.
Context Window
Winner: Gemini 2.5 ProGemini 2.5 Pro offers 1,048,576 tokens versus GPT-5 Mini's 400,000. The larger window supports longer multimodal inputs and extended reasoning chains. GPT-5 Mini still manages very large contexts efficiently within its limit.
Gemini 2.5 Pro
Pros
- +Very large context window for extended inputs
- +Native support for multiple modalities in one model
- +Strong integration of text with visual and audio data
Cons
- –Higher latency on very large multimodal inputs
- –Performance can vary with extremely long contexts
- –Dependent on Google infrastructure for access
GPT-5 Mini
Pros
- +Handles very large contexts efficiently
- +Integrates text, image, and file inputs
- +Suitable for complex multi-turn tasks
Cons
- –Reduced depth on highly complex reasoning vs full-size models
- –Performance depends on input clarity across modalities
- –May require careful prompting for nuanced outputs
Summary: Gemini 2.5 Pro vs GPT-5 Mini
Select GPT-5 Mini when intelligence, cost, and compact multimodal efficiency are priorities. Choose Gemini 2.5 Pro when maximum context length and higher output speed outweigh the higher price. The decision hinges on whether budget and reasoning depth or scale and velocity matter most.
Frequently asked questions
GPT-5 Mini is stronger on intelligence and price while Gemini 2.5 Pro leads on speed and context size; neither dominates every dimension.