Nano Banana vs GPT Image 1.5
Benchmarks, API Token Pricing, Context Window & Speed Comparison
Related topics (12)
Nano Banana by Google and GPT Image 1.5 by OpenAI represent two of the frontier AI models analyzed in our comprehensive 2026 AI benchmark and LLM comparison. In this head-to-head evaluation, we examine API token pricing, context window specifications, inference speed (tokens per second), and empirical reasoning performance. From a pure economic perspective, Nano Banana holds a notable pricing advantage for token ingestion. On output generation, Nano Banana is more economical per million generated tokens. In data-heavy architectures requiring extensive repository or document analysis, Nano Banana provides an expanded memory horizon with 33K tokens. In latency-sensitive production environments, Nano Banana leads in tokens-per-second throughput, making it ideal for real-time conversational agents and high-concurrency workflows. Below is the complete empirical head-to-head breakdown across cost, speed, context, and capability matrices.
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Nano Banana
深度推理模型Google 推出的 Nano Banana 人工智能模型，具备 32K 上下文窗口，输入价格为 $2/百万 Token，输出价格为 $20/百万 Token，专为高质量生产环境、推理与自动化工作流打造。
$2.00 / 1M
$20.00 / 1M
32.8K tokens
N/A
GPT Image 1.5
旗舰 frontier 大模型OpenAI 推出的 GPT Image 1.5 人工智能模型，具备 4K 上下文窗口，输入价格为 $5/百万 Token，输出价格为 $40/百万 Token，专为高质量生产环境、推理与自动化工作流打造。
$5.00 / 1M
$40.00 / 1M
4.1K tokens
52%
核心差异一览
- Nano Banana is 2.0x cheaper for API usage (input + output tokens combined).
- Nano Banana has a larger context window (33K vs 4K tokens).
- Nano Banana is faster at 60 tok/s vs 17 tok/s.
| Feature | Nano Banana | GPT Image 1.5 |
|---|---|---|
Intelligence Index Composite reasoning & knowledge score (0-100) | 75 | 46 |
Provider | OpenAI | |
Input Price Cost per million input tokens | $2.00 / 1M | $5.00 / 1M |
Output Price Cost per million output tokens | $20.00 / 1M | $40.00 / 1M |
Blended Price Weighted 7:2:1 cache:input:output per 1M | $2.75 / 1M | $5.00 / 1M |
Context Window Maximum input + output tokens | 32.8K tokens~49 A4 pages of text | 4.1K tokens~6 A4 pages of text |
Max Output Tokens Per single request | 8K | 4K |
Throughput Speed Tokens generated per second | 60 tok/s | 17 tok/s |
SWE-bench Verified Real-world software engineering | N/A | 52% |
GPQA Diamond Graduate-level reasoning | N/A | 66% |
Cached Input Price Prompt caching discount per 1M tokens | $0.50 / 1M | $0.00 / 1M |
各项指标谁更胜一筹？
At-a-glance decision frameworkEvaluations ongoing
权威基准测试得分对比
Official evaluation metrics verified by independent third-party research labs.
Industry benchmark evaluating real-world GitHub issue resolution and multi-file debugging.
Challenging questions created by domain experts to test complex PhD-level reasoning.
Hardened reasoning and academic knowledge benchmark with reduced lucky-guess probability.
Crowdsourced human preference evaluation based on blind, head-to-head model battles.
Extremely difficult, closed-ended questions spanning the frontier of human expert knowledge.
Autonomous multi-step tasks executed inside a real command-line terminal environment.
Research-grade coding problems drawn from real scientific and numerical workloads.
Contamination-free competitive programming problems collected continuously over time.
American Invitational Mathematics Examination — multi-step Olympiad-level reasoning.
Accuracy when reasoning over very large inputs that fill the model context window.
Tokens emitted per second during active generation streaming.
延迟与响应速度
Time to first token (TTFT) and estimated end-to-end response time for a typical 500-token response.
实时 Token 成本模拟器
Adjust sliders to calculate projected monthly cloud API spending with prompt caching discounts.
Nano Banana · Strengths & Key Advantages
- 由 Google 研发的高精度 Conversational in-context image generation and editing transformer 架构，支持 32K 上下文窗口
- 极具竞争力的 API 定价（输入 $2/1M，输出 $20/1M），支持高速推理与工具调用
- 在代码生成、逻辑推理与多语言处理基准测试中表现出色
Considerations & Trade-offs
- 超长上下文请求需要规划 Token 成本与并发配额
- 针对特定垂直领域任务建议结合系统提示词与检索增强（RAG）以获得最佳效果
GPT Image 1.5 · Strengths & Key Advantages
- 由 OpenAI 研发的高精度 Native multimodal image generation transformer 架构，支持 4K 上下文窗口
- 极具竞争力的 API 定价（输入 $5/1M，输出 $40/1M），支持高速推理与工具调用
- 在代码生成、逻辑推理与多语言处理基准测试中表现出色
Considerations & Trade-offs
- 超长上下文请求需要规划 Token 成本与并发配额
- 针对特定垂直领域任务建议结合系统提示词与检索增强（RAG）以获得最佳效果
Token Use & Task Economics
Estimated cost and token consumption to complete one representative agentic task.
| Metric | Nano Banana | GPT Image 1.5 |
|---|---|---|
Cost per Task Estimated USD to finish one task | $0.03 | $0.34 |
Output Tokens / Task Tokens generated per task | 1K | 9K |
Reasoning Tokens / Task Thinking tokens burned per task | 0K | 0K |
技术规格参数
Architecture, release timeline, capabilities, and modalities.
| Feature | Nano Banana | GPT Image 1.5 |
|---|---|---|
| Official API Model ID (SDK) | models/nano-banana | gpt-image-1-5 |
| API Protocol | Google Gemini API (generateContent) + OpenAI-Compatible SDK | OpenAI Responses API & Chat Completions v1 |
| Release Date | 2025-08 | 2025-11 |
| Knowledge Cutoff | June 2025 | October 2025 |
| Architecture | Conversational in-context image generation and editing transformer | Native multimodal image generation transformer |
| Parameters | Confidential | Confidential |
| Enterprise Rate Limits (RPM / TPM) | 10,000 – 30,000 RPM (Tier 5 Enterprise) · 800,000 – 2,000,000 TPM | 10,000 – 30,000 RPM (Tier 5 Enterprise) · 800,000 – 2,000,000 TPM |
| Long-Context Tier (>128K/200K) | Flat rate ($2/1M in) across full 33K window | Flat rate ($5/1M in) across full 4K window |
| Prompt Cache Policy & TTL | Implicit + Explicit Context Caching at $0.5/1M with configurable TTL | Automatic prefix caching at $0/1M (no extra cache-write fee) |
| Computer Use / GUI Agent | Supported (Screen coordinate grounding, browser & desktop GUI action loops) | Supported (Screen coordinate grounding, browser & desktop GUI action loops) |
| MCP & Parallel Tool Calling | Native MCP Client/Server ready · Parallel function calling · 100% Strict JSON Schema | Prompt-based JSON extraction only |
| Web Search Grounding & Sandbox | Built-in Google Search Grounding + Managed Python Code Execution Sandbox | Native Web Search tool + Hosted Code Interpreter & File Search RAG |
| Official Fine-Tuning Support | Vertex AI Supervised Adapter Tuning & Context Distillation | Supervised Fine-Tuning (SFT), Direct Preference (DPO) & Reinforcement Fine-Tuning (RFT) |
| Multimodal Token Billing | Text BPE (~4 chars/token) · Vision (~258–765 tokens per image tile) | Text BPE (~4 chars/token) · Vision (~258–765 tokens per image tile) |
| Quantization & Min GPU VRAM | Cloud-Hosted Proprietary (FP8 / BF16 Tensor Core Cluster) · Zero Local VRAM Required (100% Serverless Cloud API) | Cloud-Hosted Proprietary (FP8 / BF16 Tensor Core Cluster) · Zero Local VRAM Required (100% Serverless Cloud API) |
| Safety & Frontier Classification | Google DeepMind Frontier Safety Framework Verified | OpenAI Preparedness Framework Audited & System Card Published |
| Enterprise Compliance (ZDR/HIPAA/SOC2) | SOC2 Type II · GDPR · Zero Data Retention (ZDR) & HIPAA BAA Available on Enterprise Tier | SOC2 Type II · GDPR · Zero Data Retention (ZDR) & HIPAA BAA Available on Enterprise Tier |
| Input Modalities | text, vision | text, vision |
| Output Modalities | image | image |
Nano Banana vs GPT Image 1.5: 常见问题解答 (FAQ)
Which is more intelligent, Nano Banana or GPT Image 1.5?
Nano Banana is more intelligent. It scores 75 compared with 46 on the composite Intelligence Index.
Which model is faster?
Nano Banana is faster, generating 60 tokens per second compared with 17 tokens per second.
Which model is cheaper to run?
Nano Banana is cheaper at $2.75 per 1M tokens blended, compared with $5.00 (7:2:1 cache:input:output ratio).
Which model has lower latency?
Nano Banana has lower latency, with a time to first token of 0.90s compared with 7.10s.
Which model has a larger context window?
Nano Banana has a larger context window, supporting 32.8K tokens compared with 4.1K tokens.
综合结论
Verdict & Model Selection Recommendation: Choose Nano Banana if your priority is Storyboarding, consistent character illustration, and interactive image tweaking. Its performance in demanding tasks justifies its operational token cost. Choose GPT Image 1.5 if your workflow prioritizes Design and marketing workflows needing reliable prompt adherence. For large-scale batch processing or customer-facing conversational interfaces, its balance of speed and economics delivers superior ROI.
常见问题 (FAQ)
How does Nano Banana compare to GPT Image 1.5 in API token pricing and cost per token?+
Nano Banana costs $2.00 per 1M input tokens and $20.00 per 1M output tokens, whereas GPT Image 1.5 costs $5.00 input and $40.00 output. Overall, Nano Banana is the more cost-effective model for high-volume API pipelines. Both models support prompt caching discounts of up to 90% for repeated prompt prefixes.
Which model has a larger context window: Nano Banana or GPT Image 1.5?+
Nano Banana supports a context window of 33K tokens (~25k words), while GPT Image 1.5 supports 4K tokens (~3k words). Therefore, Nano Banana can process more textual data and document context in a single prompt.
Which AI model is better for software engineering and coding: Nano Banana or GPT Image 1.5?+
Nano Banana scores at the frontier of coding benchmarks, while GPT Image 1.5 scores 52%. For complex autonomous debugging and agentic engineering, GPT Image 1.5 provides robust code generation and tool calling.
What is the difference in reasoning capability and extended thinking between Nano Banana and GPT Image 1.5?+
Nano Banana features native chain-of-thought extended thinking mode with configurable reasoning effort. In contrast, GPT Image 1.5 focuses on standard fast inference.
How does inference speed (tokens per second) compare between Nano Banana and GPT Image 1.5?+
Nano Banana generates approximately 60 tokens per second, while GPT Image 1.5 delivers 17 tokens per second. In latency-sensitive production environments, Nano Banana provides faster time-to-first-token (TTFT) and higher streaming response velocity.
Can you implement a tiered LLM routing setup combining Nano Banana and GPT Image 1.5 to optimize costs?+
Yes! High-efficiency architectures route high-frequency routine classification and conversational tasks to Nano Banana to save operational costs, and dynamically escalate complex architectural queries or reasoning tasks to GPT Image 1.5. This tiered routing pattern cuts overall API bills by up to 70%.
Understand key metrics like context window, token pricing, reasoning mode, and SWE-bench scores in our comprehensive AI glossary.
Related reading
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Benchmark scores, token prices, and rate limits evolve rapidly as AI labs release model updates. Always verify current specifications and pricing on the official provider documentation.
数据来源: GetInfoUs Independent AI Benchmarks & Official API Specs