Nano Banana 2.1 vs Nano Banana 2 (Gemini 3.1 Flash Image Preview)
| Signal | Nano Banana 2.1 | Delta | Nano Banana 2 (Gemini 3.1 Flash Image Preview) |
|---|---|---|---|
Capabilities | 100 | +14 | |
Pricing | 93 | -4 | |
Context window size | 86 | -- | |
Recency | 100 | +8 | |
Output Capacity | 93 | -- | |
| Overall Result | 2 wins | of 5 | 1 wins |
Score History
40
current score
Tied
right now
40
current score
Nano Banana 2.1
Nano Banana 2 (Gemini 3.1 Flash Image Preview)
Nano Banana 2 (Gemini 3.1 Flash Image Preview) saves you $325.00/month
That's $3900.00/year compared to Nano Banana 2.1 at your current usage level of 100K calls/month.
| Metric | Nano Banana 2.1 | Nano Banana 2 (Gemini 3.1 Flash Image Preview) | Winner |
|---|---|---|---|
| Overall Score | 40 | 40 | -- |
| Rank | #5 | #8 | Nano Banana 2.1 |
| Quality Rank | #5 | #8 | Nano Banana 2.1 |
| Adoption Rank | #5 | #8 | Nano Banana 2.1 |
| Parameters | -- | -- | -- |
| Context Window | 66K | 66K | -- |
| Pricing | $1.50/$7.50/M | $0.50/$3.00/M | -- |
| Signal Scores | |||
| Capabilities | 100 | 86 | Nano Banana 2.1 |
| Pricing | 93 | 97 | Nano Banana 2 (Gemini 3.1 Flash Image Preview) |
| Context window size | 86 | 86 | Nano Banana 2.1 |
| Recency | 100 | 92 | Nano Banana 2.1 |
| Output Capacity | 93 | 93 | Nano Banana 2.1 |
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 #5), placing it in the top 99% 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 2.1 when you need:
- Agentic applications using tool/function calling
- Step-by-step reasoning and chain-of-thought problem solving
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
Nano Banana 2 (Gemini 3.1 Flash Image Preview) offers 61% 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 $135.00/month with Nano Banana 2.1 - a $82.50 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 2.1 and Nano Banana 2 (Gemini 3.1 Flash 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 2.1
Marginally better benchmark scores; both are excellent
Best for Cost
Nano Banana 2 (Gemini 3.1 Flash Image Preview)
61% lower pricing; better value at scale
Best for Reliability
Nano Banana 2.1
Higher uptime and faster response speeds
Best for Prototyping
Nano Banana 2.1
Stronger community support and better developer experience
Best for Production
Nano Banana 2.1
Wider enterprise adoption and proven at scale
by Google
- Choose for Quality - Marginally better benchmark scores; both are excellent
- 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
by Google
- Choose for Cost - 61% lower pricing; better value at scale
| Capability | Nano Banana 2.1 | Nano Banana 2 (Gemini 3.1 Flash Image Preview) |
|---|---|---|
| Vision (Image Input) | ||
| Function Callingdiffers | ||
| Streaming | ||
| JSON Mode | ||
| Reasoning | ||
| Web Search | ||
| Image Output |
Nano Banana 2.1
Nano Banana 2 (Gemini 3.1 Flash Image Preview)
Nano Banana 2 (Gemini 3.1 Flash Image Preview) saves you $7.20/month
That's 62% cheaper than Nano Banana 2.1 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 2.1 | Nano Banana 2 (Gemini 3.1 Flash Image Preview) |
|---|---|---|
| Context Window | 66K | 66K |
| Max Output Tokens | 58,982 | 58,982 |
| Open Source | No | No |
| Created | Oct 6, 2026 | Feb 26, 2026 |