Gemini 2.5 Flash Image (Nano Banana)vs Gemini 2.5 Flash Preview 09-2025
Compare performance metrics, pricing, and capabilities of these AI models.
Key Differences
Context Length
Lower
Gemini 2.5 Flash Image (Nano Banana): 33K (disadvantage)
Gemini 2.5 Flash Preview 09-2025: 1.0M (advantage)
Cost Efficiency
Similar
Prompt: $0.30M vs $0.30M
Completion: $2.50M vs $2.50M
Capabilities
Gemini 2.5 Flash Image (Nano Banana)
Modality: text+image->text+image
Inputs: image, text
Gemini 2.5 Flash Preview 09-2025
Modality: text+image->text
Inputs: image, file, text
G
Gemini 2.5 Flash Image (Nano Banana)
google/gemini-2.5-flash-image
Gemini 2.5 Flash Image, a.k.a. "Nano Banana," is now generally available. It is a state of the art image generation model with contextual understandin...
Context Length33K
Prompt Price$0.30M
ReleasedOctober 7, 2025
Supports:
text+image->text+imageG
Gemini 2.5 Flash Preview 09-2025
google/gemini-2.5-flash-preview-09-2025
Gemini 2.5 Flash Preview September 2025 Checkpoint is Google's state-of-the-art workhorse model, specifically designed for advanced reasoning, coding,...
Context Length1.0M
Prompt Price$0.30M
ReleasedSeptember 25, 2025
Supports:
text+image->textDetailed Comparison
| Feature | | |
|---|---|---|
| Context Length | 33K | 1.0M |
| Prompt Price | $0.30M | $0.30M |
| Completion Price | $2.50M | $2.50M |
| Modality | text+image->text+image | text+image->text |
| Release Date | October 7, 2025 | September 25, 2025 |
Analysis & Recommendations
Quick Summary
This comparison reveals key trade-offs between Gemini 2.5 Flash Image (Nano Banana) and Gemini 2.5 Flash Preview 09-2025. Gemini 2.5 Flash Preview 09-2025 offers a larger context window of 1.0M compared to Gemini 2.5 Flash Image (Nano Banana)'s 33K, though Gemini 2.5 Flash Preview 09-2025 comes at a higher cost.
Gemini 2.5 Flash Image (Nano Banana) Strengths
- •Competitive context size (33K)
- •Premium pricing for high-quality output
- •Specialized for image and text tasks
- •Latest generation model
Gemini 2.5 Flash Preview 09-2025 Strengths
- •Larger context window (1.0M) for processing longer documents
- •Premium pricing for high-quality output
- •Multimodal capabilities for image analysis
- •Proven and stable model
When to Use Each Model
Choose Gemini 2.5 Flash Image (Nano Banana) when:
- • You need competitive context capability for complex tasks
- • Cost efficiency is not the primary concern in your use case
- • Working with images and text that benefit from multimodal processing
Choose Gemini 2.5 Flash Preview 09-2025 when:
- • You need the larger context window for long-form content
- • Cost efficiency is not the primary concern for your budget
- • Working with images and text that require vision capabilities
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