| Signal | Nano Banana 2 (Gemini 3.1 Flash Image Preview) | Delta | Step 3.7 Flash |
|---|---|---|---|
Capabilities | 86 | +2 | |
Pricing | 97 | -2 | |
Context window size | 91 | +14 | |
Recency | 100 | -- | |
Output Capacity | 94 | +4 | |
| Overall Result | 3 wins | of 5 | 1 wins |
Score History
40
current score
Tied
right now
40
current score
StepFun
Step 3.7 Flash saves you $122.50/month
That's $1470.00/year compared to Nano Banana 2 (Gemini 3.1 Flash Image Preview) at your current usage level of 100K calls/month.
| Metric | Nano Banana 2 (Gemini 3.1 Flash Image Preview) | Step 3.7 Flash | Winner |
|---|---|---|---|
| Overall Score | 40 | 40 | -- |
| Rank | #7 | #177 | Nano Banana 2 (Gemini 3.1 Flash Image Preview) |
| Quality Rank | #7 | #177 | Nano Banana 2 (Gemini 3.1 Flash Image Preview) |
| Adoption Rank | #7 | #177 | Nano Banana 2 (Gemini 3.1 Flash Image Preview) |
| Parameters | -- | -- | -- |
| Context Window | 131K | 256K | Step 3.7 Flash |
| Pricing | $0.50/$3.00/M | $0.20/$1.15/M | -- |
| Signal Scores | |||
| Capabilities | 86 | 83 | Nano Banana 2 (Gemini 3.1 Flash Image Preview) |
| Pricing | 97 | 99 | Step 3.7 Flash |
| Context window size | 91 | 77 | Nano Banana 2 (Gemini 3.1 Flash Image Preview) |
| Recency | 100 | 100 | Nano Banana 2 (Gemini 3.1 Flash Image Preview) |
| Output Capacity | 94 | 90 | 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 #177), placing it in the top 39% 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.
Step 3.7 Flash offers 61% better value per quality point. At 1M tokens/day, you'd spend $20.25/month with Step 3.7 Flash vs $52.50/month with Nano Banana 2 (Gemini 3.1 Flash Image Preview) - a $32.25 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. Step 3.7 Flash also offers lower per-token costs for high-volume support
Long document analysis
Larger context window (256K tokens) can process longer documents, contracts, and research papers in a single pass
Batch data extraction
Lower output pricing ($1.15/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 Step 3.7 Flash 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.
Best for Quality
Nano Banana 2 (Gemini 3.1 Flash Image Preview)
Marginally better benchmark scores; both are excellent
Best for Cost
Step 3.7 Flash
61% 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
| Capability | Nano Banana 2 (Gemini 3.1 Flash Image Preview) | Step 3.7 Flash |
|---|---|---|
| Vision (Image Input) | ||
| Function Callingdiffers | ||
| Streaming | ||
| JSON Mode | ||
| Reasoning | ||
| Web Searchdiffers | ||
| Image Outputdiffers |
StepFun
Step 3.7 Flash saves you $2.76/month
That's 61% cheaper than Nano Banana 2 (Gemini 3.1 Flash 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) | Step 3.7 Flash |
|---|---|---|
| Context Window | 131K | 256K |
| Max Output Tokens | 65,536 | 256,000 |
| Open Source | No | Yes |
| Created | Feb 26, 2026 | May 28, 2026 |