LLM ComparisonGPT-4 TurboNano Banana 2

GPT-4 Turbo vs Nano Banana 2

Compare GPT-4 Turbo and Nano Banana 2. Build AI products powered by either model on Appaca.

Model Comparison

FeatureGPT-4 TurboNano Banana 2
ProviderOpenAIGoogle
Model Typetextimage
Context Window128,000 tokensN/A
Input Cost
$10.00/ 1M tokens
N/A
Output Cost
$30.00/ 1M tokens
N/A

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Strengths & Best Use Cases

GPT-4 Turbo

OpenAI

1. Strong reasoning for its generation

  • Next-gen version of GPT-4 designed to be cheaper and faster than the original.
  • Good for analytical tasks, structured writing, coding guidance, and multi-step reasoning.

2. Image input support

  • Accepts images and provides text-only outputs.
  • Useful for OCR, visual Q&A, document extraction, UI analysis, and design interpretation.

3. Stable performance

  • Predictable model behavior suitable for legacy systems still built on GPT-4.
  • Works reliably for established pipelines and enterprise workloads.

4. Large 128K context window

  • Handles long documents, multi-file inputs, or extended conversational sessions.
  • Allows complex prompt chaining and large instruction sets.

5. Broad endpoint compatibility

  • Works with Chat Completions, Responses API, Realtime API, Assistants, Batch, Fine-tuning, Embeddings, and more.
  • Supports streaming and function calling.

6. Good choice for cost-controlled GPT-4-class workloads

  • Although older, still useful for teams who want GPT-4-level reasoning without upgrading immediately.
  • A midpoint between legacy GPT-4 and modern GPT-4o/5.1 models.

7. Text-only output simplifies downstream use

  • Ensures deterministic outputs for applications that need reliable text generation.
  • Good for RAG, data pipelines, automation tools, and enterprise systems.

8. Recommended migration path

  • OpenAI now recommends using GPT-4o or GPT-5.1 for improved speed, cost, reasoning, and multimodal capability.
  • GPT-4 Turbo remains available for backward compatibility and stability.

Nano Banana 2

Google

1. High-efficiency counterpart to Gemini 3 Pro Image

  • Google describes Nano Banana 2 as the high-efficiency counterpart to Gemini 3 Pro Image.
  • Optimized for speed and high-volume developer use cases rather than maximum pro-grade fidelity.

2. Native image generation + understanding

  • Accepts text and image inputs and can output both text and images in a conversational workflow.
  • Useful for quick iteration, editing, remixing, and interactive visual applications.

3. Strong throughput with practical image controls

  • Supports up to 14 input images per prompt, 128 k input tokens, and 32,768 output tokens.
  • Handles multiple aspect ratios and can generate or edit images while keeping latency and cost lower than higher-end image models.

4. Grounded, developer-friendly image workflows

  • Supports Google Search grounding and Content Credentials (C2PA) for image outputs.
  • All generated images include SynthID watermarking as part of Google's native image stack.

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