Nano Banana Pro (Gemini 3 Pro Image Preview) vs GPT-5.4
Nano Banana Pro (Gemini 3 Pro Image Preview) (2025) and GPT-5.4 (2026) are frontier reasoning models from Google DeepMind and OpenAI. Nano Banana Pro (Gemini 3 Pro Image Preview) ships a 66K-token context window, while GPT-5.4 ships a 1.1M-token context window. On pricing, Nano Banana Pro (Gemini 3 Pro Image Preview) costs $2/1M input tokens versus $2.5/1M for the alternative. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit.
GPT-5.4 fits 16x more tokens; pick it for long-context work and Nano Banana Pro (Gemini 3 Pro Image Preview) for tighter calls.
Decision scorecard
Local evidence first| Signal | Nano Banana Pro (Gemini 3 Pro Image Preview) | GPT-5.4 |
|---|---|---|
| Decision fit | General | Coding, RAG, and Agents |
| Context window | 66K | 1.1M |
| Cheapest output | $120/1M tokens | $15/1M tokens |
| Provider routes | 3 tracked | 2 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- Nano Banana Pro (Gemini 3 Pro Image Preview) has broader tracked provider coverage for fallback and procurement flexibility.
- GPT-5.4 has the larger context window for long prompts, retrieval packs, or transcript analysis.
- GPT-5.4 has the lower cheapest tracked output price at $15/1M tokens.
- GPT-5.4 uniquely exposes Multimodal, Reasoning, and Function calling in local model data.
- Local decision data tags GPT-5.4 for Coding, RAG, and Agents.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output prices on this page.
Nano Banana Pro (Gemini 3 Pro Image Preview)
$31,600
Cheapest tracked route: Google AI Studio
GPT-5.4
$5,750
Cheapest tracked route: OpenAI API
Estimated monthly gap: $25,850. Batch, cache, and negotiated pricing are excluded from this local estimate.
Switch friction
- Provider overlap exists on OpenRouter; start route-level A/B tests there.
- GPT-5.4 is $105/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- GPT-5.4 adds Multimodal, Reasoning, and Function calling in local capability data.
- Provider overlap exists on OpenRouter; start route-level A/B tests there.
- Nano Banana Pro (Gemini 3 Pro Image Preview) is $105/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Check replacement coverage for Multimodal, Reasoning, and Function calling before moving production traffic.
Specs
| Specification | ||
|---|---|---|
| Released | 2025-09-01 | 2026-03-05 |
| Context window | 66K | 1.1M |
| Parameters | — | — |
| Architecture | decoder only | decoder only |
| License | Unknown | Proprietary |
| Knowledge cutoff | - | 2025-08 |
Pricing and availability
| Pricing attribute | Nano Banana Pro (Gemini 3 Pro Image Preview) | GPT-5.4 |
|---|---|---|
| Input price | $2/1M tokens | $2.5/1M tokens |
| Output price | $120/1M tokens | $15/1M tokens |
| Providers |
Capabilities
| Capability | Nano Banana Pro (Gemini 3 Pro Image Preview) | GPT-5.4 |
|---|---|---|
| Vision | No | No |
| Multimodal | No | Yes |
| Reasoning | No | Yes |
| Function calling | No | Yes |
| Tool use | No | Yes |
| Structured outputs | No | Yes |
| Code execution | No | Yes |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on multimodal input: GPT-5.4, reasoning mode: GPT-5.4, function calling: GPT-5.4, tool use: GPT-5.4, structured outputs: GPT-5.4, and code execution: GPT-5.4. Both models share the core language-model surface, so the practical split is not just feature count. Use those differences to decide whether the page is about raw model quality, agentic coding support, multimodal ingestion, or predictable structured API behavior.
For cost, Nano Banana Pro (Gemini 3 Pro Image Preview) lists $2/1M input and $120/1M output tokens, while GPT-5.4 lists $2.5/1M input and $15/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts GPT-5.4 lower by about $31.15 per million blended tokens. Availability is 3 providers versus 2, so concentration risk also matters.
Choose Nano Banana Pro (Gemini 3 Pro Image Preview) when provider fit, lower input-token cost, and broader provider choice are central to the workload. Choose GPT-5.4 when coding workflow support and larger context windows are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship. This keeps the decision grounded in measurable tradeoffs instead of brand-level assumptions.
FAQ
Which has a larger context window, Nano Banana Pro (Gemini 3 Pro Image Preview) or GPT-5.4?
GPT-5.4 supports 1.1M tokens, while Nano Banana Pro (Gemini 3 Pro Image Preview) supports 66K tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Which is cheaper, Nano Banana Pro (Gemini 3 Pro Image Preview) or GPT-5.4?
Nano Banana Pro (Gemini 3 Pro Image Preview) is cheaper on tracked token pricing. Nano Banana Pro (Gemini 3 Pro Image Preview) costs $2/1M input and $120/1M output tokens. GPT-5.4 costs $2.5/1M input and $15/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is Nano Banana Pro (Gemini 3 Pro Image Preview) or GPT-5.4 open source?
Nano Banana Pro (Gemini 3 Pro Image Preview) is listed under Unknown. GPT-5.4 is listed under Proprietary. License labels affect whether you can self-host, redistribute weights, or rely only on hosted APIs, so confirm the upstream license before deployment.
Which is better for multimodal input, Nano Banana Pro (Gemini 3 Pro Image Preview) or GPT-5.4?
GPT-5.4 has the clearer documented multimodal input signal in this comparison. If multimodal input is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Which is better for reasoning mode, Nano Banana Pro (Gemini 3 Pro Image Preview) or GPT-5.4?
GPT-5.4 has the clearer documented reasoning mode signal in this comparison. If reasoning mode is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Where can I run Nano Banana Pro (Gemini 3 Pro Image Preview) and GPT-5.4?
Nano Banana Pro (Gemini 3 Pro Image Preview) is available on Google AI Studio, GCP Vertex AI, and OpenRouter. GPT-5.4 is available on OpenAI API and OpenRouter. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
Continue comparing
Last reviewed: 2026-05-11. Data sourced from public model cards and provider documentation.