image model comparison
Gemini 3 Pro Image vs GPT Image 2.5 Sunburst
Gemini 3 Pro Image and GPT Image 2.5 Sunburst are both current image models, from Google and OpenAI. Gemini 3 Pro Image is 60% cheaper per 1M input tokens than GPT Image 2.5 Sunburst, $2 vs $5. On Arena Text-to-Image, Gemini 3 Pro Image scores 1248 Elo and GPT Image 2.5 Sunburst 1425 Elo (Arena, measured October 7, 2026).
Data verified October 12, 2026 · Dataset 2026-10-12
Side by side
Standard-tier prices in effect today. The better value in each row is highlighted.
| Fact | Gemini 3 Pro Image | GPT Image 2.5 Sunburst |
|---|---|---|
| Price per image | $0.134 | Not reported |
| Price per 1M input tokens | $2 (better) | $5 |
| Price per 1M output tokens | $12 | Not reported |
| Arena Text-to-Image | 1248 Elo (#7 of 9) | 1425 Elo (#1 of 9) (better) |
| Arena Image Edit | 1390 Elo (#5 of 8) | 1524 Elo (#1 of 8) (better) |
| Provider | OpenAI | |
| Release date | May 28, 2026 | September 8, 2026 |
| Access | API only | API only |
| Context window | 65,536 tokens | Not reported |
| Max output | 32,768 tokens | Not reported |
| Input | text, image | text, image |
| Output | text, image | image |
Scores:Arena · 2026-10-12
When to choose each
Gemini 3 Pro Image
Best for
- Professional image generation and editing
Watch out for
- Pricing differs by standard, batch, flex, and priority consumption
GPT Image 2.5 Sunburst
Best for
- Hero imagery, detailed edits and text-heavy graphics where quality matters most
Watch out for
- OpenAI publishes no per-image price, and its GPT Image 2 calculator does not estimate 2.5 token use, so cost per image has to be measured
- No independent image-quality benchmark is recorded here
Gemini 3 Pro Image vs GPT Image 2.5 Sunburst FAQ
Which is cheaper, Gemini 3 Pro Image or GPT Image 2.5 Sunburst?
Gemini 3 Pro Image is 60% cheaper per 1M input tokens than GPT Image 2.5 Sunburst, $2 vs $5.
Which scores higher on independent benchmarks, Gemini 3 Pro Image or GPT Image 2.5 Sunburst?
GPT Image 2.5 Sunburst leads on Arena Text-to-Image, 1425 Elo to 1248 Elo; GPT Image 2.5 Sunburst leads on Arena Image Edit, 1524 Elo to 1390 Elo. Scores are independent evaluations, not either vendor's launch figures.
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Production evaluation
Choosing between Gemini 3 Pro Image and GPT Image 2.5 Sunburst?
Public benchmarks narrow the shortlist. We run both on your own tasks, data and cost limits, then build the routing and review controls to run the winner in production.
- A head-to-head evaluation on your real workload
- Routing between models by cost and difficulty