GPT-5 Image vs Nano Banana 2 (Gemini 3.1 Flash Image Preview)
| Signal | GPT-5 Image | Delta | Nano Banana 2 (Gemini 3.1 Flash Image Preview) |
|---|---|---|---|
Capabilities | 86 | -- | |
Benchmarks | 88 | +88 | |
Pricing | 90 | -7 | |
Context window size | 100 | +14 | |
Recency | 79 | -21 | |
Output Capacity | 100 | +6 | |
| Overall Result | 3 wins | of 6 | 2 wins |
Score History
88.5
current score
GPT-5 Image
right now
40
current score
GPT-5 Image
OpenAI
Nano Banana 2 (Gemini 3.1 Flash Image Preview)
Nano Banana 2 (Gemini 3.1 Flash Image Preview) saves you $1300.00/month
That's $15600.00/year compared to GPT-5 Image at your current usage level of 100K calls/month.
| Metric | GPT-5 Image | Nano Banana 2 (Gemini 3.1 Flash Image Preview) | Winner |
|---|---|---|---|
| Overall Score | 89 | 40 | GPT-5 Image |
| Rank | #3 | #7 | GPT-5 Image |
| Quality Rank | #3 | #7 | GPT-5 Image |
| Adoption Rank | #3 | #7 | GPT-5 Image |
| Parameters | -- | -- | -- |
| Context Window | 400K | 66K | GPT-5 Image |
| Pricing | $10.00/$10.00/M | $0.50/$3.00/M | -- |
| Signal Scores | |||
| Capabilities | 86 | 86 | GPT-5 Image |
| Benchmarks | 88 | -- | GPT-5 Image |
| Pricing | 90 | 97 | Nano Banana 2 (Gemini 3.1 Flash Image Preview) |
| Context window size | 100 | 86 | GPT-5 Image |
| Recency | 79 | 100 | Nano Banana 2 (Gemini 3.1 Flash Image Preview) |
| Output Capacity | 100 | 94 | GPT-5 Image |
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 89/100 (rank #3), placing it in the top 99% of all 290 models tracked.
Scores 40/100 (rank #7), placing it in the top 98% of all 290 models tracked.
GPT-5 Image has a 49-point advantage, which typically translates to noticeably stronger performance on complex reasoning, code generation, and multi-step tasks.
Choose GPT-5 Image when you need:
- Processing long documents or large codebases (400K token context)
- 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 83% 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 $300.00/month with GPT-5 Image - a $247.50 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 (400K 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 (89/100) 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
GPT-5 Image clearly outperforms Nano Banana 2 (Gemini 3.1 Flash Image Preview) with a significant 48.5-point lead. For most general use cases, GPT-5 Image is the stronger choice. However, Nano Banana 2 (Gemini 3.1 Flash Image Preview) may still excel in niche scenarios.
By Use Case
Best for Quality
GPT-5 Image
Marginally better benchmark scores; both are excellent
Best for Cost
Nano Banana 2 (Gemini 3.1 Flash Image Preview)
83% lower pricing; better value at scale
Best for Reliability
GPT-5 Image
Higher uptime and faster response speeds
Best for Prototyping
GPT-5 Image
Stronger community support and better developer experience
Best for Production
GPT-5 Image
Wider enterprise adoption and proven at scale
by OpenAI
- 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 - 83% lower pricing; better value at scale
| Capability | GPT-5 Image | Nano Banana 2 (Gemini 3.1 Flash Image Preview) |
|---|---|---|
| Vision (Image Input) | ||
| Function Calling | ||
| Streaming | ||
| JSON Mode | ||
| Reasoning | ||
| Web Search | ||
| Image Output |
GPT-5 Image
OpenAI
Nano Banana 2 (Gemini 3.1 Flash Image Preview)
Nano Banana 2 (Gemini 3.1 Flash Image Preview) saves you $25.50/month
That's 85% cheaper than GPT-5 Image 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 | GPT-5 Image | Nano Banana 2 (Gemini 3.1 Flash Image Preview) |
|---|---|---|
| Context Window | 400K | 66K |
| Max Output Tokens | 128,000 | 65,536 |
| Open Source | No | No |
| Created | Oct 14, 2025 | Feb 26, 2026 |
The premium reflects GPT-5 Image's 6.1x larger context window (400K vs 66K tokens) and exclusive enterprise features like function calling and web search that Nano Banana 2 lacks. For production applications requiring real-time data retrieval or API integration, GPT-5 Image's $10/M output cost becomes justified despite Nano Banana 2's competitive $3/M pricing.
With 62% of GPT-5 Image's performance at 30% of the output cost, Nano Banana 2 hits a sweet spot for batch processing and non-critical visual content generation. However, the 38-point gap becomes apparent in complex multi-modal tasks where GPT-5 Image's superior reasoning and 128K max output tokens (vs 66K) enable more sophisticated image-text workflows.
GPT-5 Image's text+image+file input support enables direct PDF, document, and structured data processing that Nano Banana 2's text+image limitation cannot match. This capability gap, combined with GPT-5 Image's 400K context window, justifies the 20x input cost difference ($10/M vs $0.5/M) for enterprise document automation workflows.
At $0.5/M input tokens (20x cheaper than GPT-5 Image's $10/M), Nano Banana 2 excels for high-volume image captioning, basic visual QA, and consumer-facing applications where the 66K context window suffices. The absence of function calling actually simplifies deployment for teams prioritizing cost over GPT-5 Image's advanced orchestration capabilities.
GPT-5 Image's perfect 100/100 score leverages OpenAI's unified architecture for seamless vision-language-function integration, while Nano Banana 2's Flash variant trades 38 performance points for Google's optimized inference speed. The 2x max output difference (128K vs 66K tokens) particularly impacts complex scenes where GPT-5 Image can generate richer descriptions alongside images.