Nano Banana Pro vs GPT Image 2.5 Fast

Nano Banana Pro (Google) vs GPT Image 2.5 Fast (OpenAI), compared on price, context, speed and Arabic support. Both run on thalam through one OpenAI-compatible API, so you can switch between them with a single model id change. At a glance, GPT Image 2.5 Fast is the cheaper option and GPT Image 2.5 Fast is rated faster.

Specs side by side

SpecNano Banana ProGPT Image 2.5 Fast
ProviderGoogleOpenAI
TypeImageImage
Price$0.134 / image$0.053 / image
SpeedSlowMedium
Arabic supportPartialNone

Which should you choose?

Choose Nano Banana Pro if…
  • Stronger Arabic support for Gulf and MENA use
Choose GPT Image 2.5 Fast if…
  • Lower cost, about 2.5× cheaper ($0.053 / image)
  • Rated faster (Medium) for latency-sensitive workloads
Run both Nano Banana Pro and GPT Image 2.5 Fast on one API

One OpenAI-compatible endpoint, one bill. Switch between them with a single model id change, pay per use, credits never expire.

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FAQ

What's the difference between Nano Banana Pro and GPT Image 2.5 Fast?

GPT Image 2.5 Fast costs less ($0.053 / image vs $0.134 / image); GPT Image 2.5 Fast is rated faster; Nano Banana Pro has stronger Arabic support. Both are available on thalam behind one OpenAI-compatible API.

Is Nano Banana Pro or GPT Image 2.5 Fast cheaper?

GPT Image 2.5 Fast is cheaper on input ($0.053 / image vs $0.134 / image). On thalam you pay per use, so you can route cheap-by-default and fall back to the other only when needed.

Can I use both Nano Banana Pro and GPT Image 2.5 Fast with one API key?

Yes. thalam is OpenAI-compatible, so both models are reachable through the same endpoint. Switching between them is a one-line model id change, no code rewrite.