Gemini 2.5 Flash Preview (Reasoning)
Intelligence
24.3
#216/520
Coding
—
Math
—
Speed
—
Pricing
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Gemini 2.5 Flash Preview (Reasoning) is Google’s latest model designed for advanced reasoning tasks. It features an Intelligence Index of 24.3 and is available at no cost for both input and output, making it accessible for various professional applications.
When to Use Gemini 2.5 Flash Preview (Reasoning)
✓ Best For
- Complex reasoning tasks
- Natural language understanding
- Professional applications requiring high intelligence
✗ Not Ideal For
- Real-time processing due to 0 tok/sec speed
- Mathematical computations, as specific indices are not available
How Gemini 2.5 Flash Preview (Reasoning) Compares
Intelligence Index · Higher is better
MiniMaxNVIDIAGoogleMBZUAI Institute of Foundation ModelsLongCat
Benchmark Profile
Intelligence · Coding · Math
Intelligence
Coding
Math
All Benchmark Scores (8)
| Benchmark | Score | |
|---|---|---|
| Intelligence Index | 24.3 | |
| MMLU-Pro | 80% | |
| GPQA | 698% | |
| LiveCodeBench | 505% | |
| HLE | 116% | |
| SciCode | 35.9% | |
| AIME | 84.3% | |
| MATH 500 | 98.1% |
Data: Artificial Analysis · Updated: April 10, 2026
Frequently Asked Questions (15)
When was Gemini 2.5 Flash Preview (Reasoning) released?
Gemini 2.5 Flash Preview (Reasoning) was released on April 17, 2025.
Who created Gemini 2.5 Flash Preview (Reasoning)?
Gemini 2.5 Flash Preview (Reasoning) was created by Google.
How intelligent is Gemini 2.5 Flash Preview (Reasoning)?
Gemini 2.5 Flash Preview (Reasoning) scores 24 (estimated) on the Artificial Analysis Intelligence Index, placing it well above average among other reasoning models in a similar price tier (median: 13).
Is Gemini 2.5 Flash Preview (Reasoning) a reasoning model?
Yes, Gemini 2.5 Flash Preview (Reasoning) is a reasoning model. It uses extended thinking or chain-of-thought reasoning to work through complex problems before providing an answer.
What input modalities does Gemini 2.5 Flash Preview (Reasoning) support?
Gemini 2.5 Flash Preview (Reasoning) supports text, image, speech, and video input.
What output modalities does Gemini 2.5 Flash Preview (Reasoning) support?
Gemini 2.5 Flash Preview (Reasoning) supports text output.
Can Gemini 2.5 Flash Preview (Reasoning) process images?
Yes, Gemini 2.5 Flash Preview (Reasoning) supports image input and can analyze, describe, and answer questions about images.
Is Gemini 2.5 Flash Preview (Reasoning) multimodal?
Yes, Gemini 2.5 Flash Preview (Reasoning) is multimodal. It can process text, image, speech, and video input and generate text output.
What is the context window of Gemini 2.5 Flash Preview (Reasoning)?
Gemini 2.5 Flash Preview (Reasoning) has a context window of 1.0M tokens. This determines how much text and conversation history the model can process in a single request.
Is Gemini 2.5 Flash Preview (Reasoning) open source?
No, Gemini 2.5 Flash Preview (Reasoning) is proprietary. The model weights are not publicly available.
How many parameters does Gemini 2.5 Flash Preview (Reasoning) have?
Gemini 2.5 Flash Preview (Reasoning) is a proprietary model and Google has not disclosed the model size or parameter count.
How does Gemini 2.5 Flash Preview (Reasoning) perform on benchmarks?
Gemini 2.5 Flash Preview (Reasoning) achieves a score of 24 on the Artificial Analysis Intelligence Index. This composite benchmark evaluates models across reasoning, knowledge, mathematics, and coding.
What is the knowledge cutoff date for Gemini 2.5 Flash Preview (Reasoning)?
Gemini 2.5 Flash Preview (Reasoning) has a knowledge cutoff of January 2025. The model's training data includes information up to this date.
Is Gemini 2.5 Flash Preview (Reasoning) available via API?
Check the providers page for current API availability.
Where can I use Gemini 2.5 Flash Preview (Reasoning)?
Visit the providers page to see availability.
