GPT Image 1.5 (high) vs Nano Banana Pro (Gemini 3 Pro Image): Which Text-to-Image Generation is Best?
Verdict: GPT Image 1.5 (high) wins by 29 points.
GPT Image 1.5 (high) takes the lead in this comparison, scoring 1245 points to Nano Banana Pro (Gemini 3 Pro Image)'s 1216. This 29-point gap suggests that GPT Image 1.5 (high) dominates its competitor in general image fidelity.
For users focused on photorealism, text rendering, GPT Image 1.5 (high) from OpenAI currently represents the state-of-the-art. Its higher Elo score indicates greater consistency across our benchmark set.
However, Nano Banana Pro (Gemini 3 Pro Image) remains a formidable contender. Ranked #2, it is a top-tier choice. Depending on your specific needs—such as licensing (Proprietary) or ecosystem integration—Nano Banana Pro (Gemini 3 Pro Image) may still be the right tool for your pipeline.
Comparison Data
| Feature | GPT Image 1.5 (high) | Nano Banana Pro (Gemini 3 Pro Image) |
|---|---|---|
| Rank | #1 | #2 |
| Score | 1245 | 1216 |
| Developer | OpenAI | |
| License | Proprietary | Proprietary |
Conclusion
Both models are excellent choices within the Text-to-Image Generation landscape. We recommend checking the full leaderboard for the most up-to-date rankings as new models are released frequently.