GPT Image 2.5 vs Nano Banana 2 (2026): Which AI Model Is Better?
Both are popular image models. Here is how GPT Image 2.5 and Nano Banana 2 stack up on price, strengths and weaknesses, and which one we would pick.
GPT Image 2.5
OpenAI's image model behind ChatGPT Images, with 4K output and up to 16 reference images
9.0 /10
Pricing: Free plan, paid from $8/mo
Pros
- Up to 4K output and up to 16 reference images for edits
- Reliable text rendering for posters, infographics and thumbnails
- Multi-turn editing keeps earlier changes consistent
- Outputs carry C2PA metadata and SynthID watermarks
Cons
- API output tokens cost $30 per million on GPT Image 2.5 Sunburst
- Thinking mode (web search, layout reasoning) is limited to paid ChatGPT plans
- Content policy blocks many real-person and brand requests
- Closed model: no local or fine-tuned use
Nano Banana 2
Google's Gemini image models (Nano Banana 2, Pro and 2 Lite) for generation and editing up to 4K
9.0 /10
Pricing: Free plan, paid from $4.99/mo
Pros
- 512px to 4K output in many aspect ratios
- Keeps up to 5 characters and 14 objects consistent across images
- Uses web search for accurate real-world subjects
- Free in the Gemini app and at zero credits in Flow; SynthID plus C2PA on outputs
Cons
- Around $0.067 per 1K image on the API (third-party estimate), more than Imagen 4 was
- Several versions with similar names (Nano Banana, 2, Pro, 2 Lite) make app menus confusing
- The original Nano Banana (Gemini 2.5 Flash Image) shuts down on 2 October 2026
- Closed model with Google content filters
GPT Image 2.5 vs Nano Banana 2 at a glance
| GPT Image 2.5 | Nano Banana 2 | |
|---|---|---|
| Editor score | 9.0 / 10 | 9.0 / 10 |
| Pricing model | Freemium | Freemium |
| Starting price | $8/mo | $4.99/mo |
| Reader upvotes | 0 | 0 |
| Best for | image-generation, openai, text-rendering | image-generation, google, gemini |
| Makes | Images & illustrations, Product photos, Thumbnails & covers, Logos & branding | Images & illustrations, Product photos, Thumbnails & covers, Social media posts |
| Maker | OpenAI | Google DeepMind |
| Latest release | 2026-09 | 2026-02 |
| Apps offering it | 29 | 30 |
Our pick
GPT Image 2.5 edges it with a score of 9.0 versus 9.0. GPT Image 2.5 is the better fit if you value: up to 4k output and up to 16 reference images for edits, reliable text rendering for posters, infographics and thumbnails. Choose Nano Banana 2 instead if you need: 512px to 4k output in many aspect ratios, keeps up to 5 characters and 14 objects consistent across images.
Other image models to consider
Full ranking →FLUX.2 🧠 ModelOpen source
Black Forest Labs' FLUX.2 family: hosted [max]/[pro]/[flex] plus open-weight [dev] and [klein]
Midjourney V8.2 🧠 ModelPaid
Midjourney's own image model, known for aesthetics and personalization, now in V8.2
Seedream 5.0 Pro 🧠 ModelFreemium
ByteDance's Seedream image models, used in CapCut, Dreamina and many creative apps
Ideogram 4.0 🧠 ModelOpen source
Ideogram's text-rendering image model with JSON prompting, now also as non-commercial open weights