Nano Banana 2 (Gemini 3.1 Flash Image Preview) vs Nano Banana Pro (Gemini 3 Pro Image Preview)
| Signal | Nano Banana 2 (Gemini 3.1 Flash Image Preview) | Delta | Nano Banana Pro (Gemini 3 Pro Image Preview) |
|---|---|---|---|
Capabilities | 86 | -- | |
Pricing | 97 | +9 | |
Context window size | 86 | -- | |
Recency | 100 | +13 | |
Output Capacity | 94 | +6 | |
| Overall Result | 3 wins | of 5 | 0 wins |
Score History
40
current score
Tied
right now
40
current score
Nano Banana 2 (Gemini 3.1 Flash Image Preview)
Nano Banana Pro (Gemini 3 Pro Image Preview)
Nano Banana 2 (Gemini 3.1 Flash Image Preview) saves you $600.00/month
That's $7200.00/year compared to Nano Banana Pro (Gemini 3 Pro Image Preview) at your current usage level of 100K calls/month.
| Metric | Nano Banana 2 (Gemini 3.1 Flash Image Preview) | Nano Banana Pro (Gemini 3 Pro Image Preview) | Winner |
|---|---|---|---|
| Overall Score | 40 | 40 | -- |
| Rank | #7 | #8 | Nano Banana 2 (Gemini 3.1 Flash Image Preview) |
| Quality Rank | #7 | #8 | Nano Banana 2 (Gemini 3.1 Flash Image Preview) |
| Adoption Rank | #7 | #8 | Nano Banana 2 (Gemini 3.1 Flash Image Preview) |
| Parameters | -- | -- | -- |
| Context Window | 66K | 66K | -- |
| Pricing | $0.50/$3.00/M | $2.00/$12.00/M | -- |
| Signal Scores | |||
| Capabilities | 86 | 86 | Nano Banana 2 (Gemini 3.1 Flash Image Preview) |
| Pricing | 97 | 88 | Nano Banana 2 (Gemini 3.1 Flash Image Preview) |
| Context window size | 86 | 86 | Nano Banana 2 (Gemini 3.1 Flash Image Preview) |
| Recency | 100 | 88 | Nano Banana 2 (Gemini 3.1 Flash Image Preview) |
| Output Capacity | 94 | 88 | Nano Banana 2 (Gemini 3.1 Flash Image Preview) |
Our score (0-100) is driven by benchmark performance (90%) from Arena Elo ratings, MMLU, GPQA, HumanEval, SWE-bench, and 15+ standardized evaluations. Capabilities and context window serve as tiebreakers (10%). Learn more about our methodology.
Scores 40/100 (rank #7), placing it in the top 98% of all 290 models tracked.
Scores 40/100 (rank #8), placing it in the top 98% of all 290 models tracked.
With only a 0-point gap, these models are in the same performance tier. The practical difference in output quality is minimal - your choice should depend on pricing, latency requirements, and specific feature needs.
Choose Nano Banana 2 (Gemini 3.1 Flash Image Preview) when you need:
- High-volume production workloads where API costs must be minimized
- Step-by-step reasoning and chain-of-thought problem solving
Choose Nano Banana Pro (Gemini 3 Pro Image Preview) when you need:
- Step-by-step reasoning and chain-of-thought problem solving
Nano Banana 2 (Gemini 3.1 Flash Image Preview) offers 75% better value per quality point. At 1M tokens/day, you'd spend $52.50/month with Nano Banana 2 (Gemini 3.1 Flash Image Preview) vs $210.00/month with Nano Banana Pro (Gemini 3 Pro Image Preview) - a $157.50 monthly difference.
Both models have comparable response speeds. For most applications, the latency difference is negligible.
When latency matters most: Interactive chatbots, IDE code completion, real-time translation, and user-facing applications where response time directly impacts experience. For batch processing, background summarization, or offline analysis, latency is less critical.
Code generation & review
Based on overall model capabilities and architecture for coding tasks like generating functions, debugging, and refactoring
Customer support chatbot
Suitable for user-facing chat with competitive response times. Nano Banana 2 (Gemini 3.1 Flash Image Preview) also offers lower per-token costs for high-volume support
Long document analysis
Larger context window (66K tokens) can process longer documents, contracts, and research papers in a single pass
Batch data extraction
Lower output pricing ($3.00/M) reduces costs when processing thousands of records daily
Creative writing & content
Higher overall composite score (40/100) correlates with better nuance, coherence, and style in long-form content
Image understanding & OCR
Supports vision input - can analyze screenshots, diagrams, photos, and scanned documents directly
Nano Banana 2 (Gemini 3.1 Flash Image Preview) and Nano Banana Pro (Gemini 3 Pro Image Preview) are extremely close in overall performance (only 0 points apart). Your best choice depends entirely on which specific strengths matter most for your use case.
By Use Case
Best for Quality
Nano Banana 2 (Gemini 3.1 Flash Image Preview)
Marginally better benchmark scores; both are excellent
Best for Cost
Nano Banana 2 (Gemini 3.1 Flash Image Preview)
75% lower pricing; better value at scale
Best for Reliability
Nano Banana 2 (Gemini 3.1 Flash Image Preview)
Higher uptime and faster response speeds
Best for Prototyping
Nano Banana 2 (Gemini 3.1 Flash Image Preview)
Stronger community support and better developer experience
Best for Production
Nano Banana 2 (Gemini 3.1 Flash Image Preview)
Wider enterprise adoption and proven at scale
by Google
- Choose for Quality - Marginally better benchmark scores; both are excellent
- Choose for Cost - 75% lower pricing; better value at scale
- Choose for Reliability - Higher uptime and faster response speeds
- Choose for Prototyping - Stronger community support and better developer experience
- Choose for Production - Wider enterprise adoption and proven at scale
| Capability | Nano Banana 2 (Gemini 3.1 Flash Image Preview) | Nano Banana Pro (Gemini 3 Pro Image Preview) |
|---|---|---|
| Vision (Image Input) | ||
| Function Calling | ||
| Streaming | ||
| JSON Mode | ||
| Reasoning | ||
| Web Search | ||
| Image Output |
Nano Banana 2 (Gemini 3.1 Flash Image Preview)
Nano Banana Pro (Gemini 3 Pro Image Preview)
Nano Banana 2 (Gemini 3.1 Flash Image Preview) saves you $13.50/month
That's 75% cheaper than Nano Banana Pro (Gemini 3 Pro Image Preview) at 1,000 tokens/request and 100 requests/day.
Assumes 60% input / 40% output token ratio per request. Actual costs may vary based on your usage pattern.
| Parameter | Nano Banana 2 (Gemini 3.1 Flash Image Preview) | Nano Banana Pro (Gemini 3 Pro Image Preview) |
|---|---|---|
| Context Window | 66K | 66K |
| Max Output Tokens | 65,536 | 32,768 |
| Open Source | No | No |
| Created | Feb 26, 2026 | Nov 20, 2025 |
The Pro model's $12/M output pricing versus Flash's $3/M seems unjustified given Flash's superior 62/100 score. However, Pro's 4x higher input pricing ($2/M vs $0.5/M) suggests it may process complex multimodal inputs more accurately, which could matter for applications where input understanding quality trumps generation speed or overall benchmark performance.
This architectural choice suggests Google optimized Flash for longer generation tasks while Pro focuses on shorter, higher-quality outputs. At Flash's $3/M output pricing, generating a full 66K tokens costs $0.198 versus Pro's $0.396 for just 33K tokens, making Flash the clear choice for bulk image description or long-form visual analysis tasks.
Pro's 57/100 score trails Flash's 62/100, but its 4x higher pricing structure ($2/M input, $12/M output) indicates it targets precision-critical applications like medical imaging or industrial quality control. The minimal 5-point performance gap suggests Pro may excel in specific subtasks not captured by general benchmarks, particularly where false negatives in vision tasks carry high costs.
With ranks #3 and #4 out of 14 models and scores of 62 and 57, both models sit in the top tier of image generation. The 5-point gap represents just an 8% performance difference, suggesting you're choosing between pricing models rather than capability tiers - Flash for cost-optimized workflows at $3/M output versus Pro for premium applications at $12/M output.
Migration makes financial sense for most use cases: Flash delivers 5 points higher performance (62 vs 57) at 75% lower output costs ($3/M vs $12/M) and doubles maximum generation length (66K vs 33K tokens). The only reason to stay with Pro is if your specific application shows inverse performance characteristics to the general benchmarks, which you should validate through A/B testing before committing to Pro's 4x higher costs.