Feature comparison overview

Compare GPT Image 2.5 vs Nano Banana 2 side by side to see how their resolution, text rendering, editing, references, speed, and cost differ for modern AI image generation.

Feature
Developer
Best for
Max resolution
Text rendering
Reference images
Editing
Character consistency
Speed
Quality tiers
Standout feature
Variants
GPT Image 2.5 (OpenAI)
OpenAI
Precision, editing, and text accuracy
Up to 4K (3840px max edge)
~99% text accuracy
Up to 16 reference images
Precise single-element, multi-turn stable
Strong across repeated edits
Flare runs 2-4x faster than GPT Image 2
New xhigh and max quality tiers
Transparent backgrounds (PNG/WebP)
Two: Flare (speed) and Sunburst (precision)
Nano Banana 2 (Google)
Google (Gemini 3.1 Flash Image)
Pro-level quality at Flash speed
512px up to 4K
Advanced, with in-image localization
Up to 14 objects / 5 characters
Prompt-based, character-consistent
Up to 5 consistent characters
Flash speed with near-Pro quality
Single Flash tier
Web grounding (Google Image Search)
Single model






GPT Image 2.5 vs Nano Banana 2 FAQ

GPT Image 2.5 (also called GPT 2.5) is OpenAI's precision-focused image model with ~99% text accuracy, exact multi-turn editing, up to 16 references, and new xhigh/max tiers. Nano Banana 2 is Google's speed-focused model built on Gemini 3.1 Flash Image, delivering near-Pro quality at Flash speed with strong character consistency.