192 evaluations across 6 categories
Benchmark V1 verdicts are produced by VLM judges and can contain mistakes. Treat PASS/FAIL labels as machine-assisted assessments, and inspect the images yourself. Learn more about the methodology.
Source-backed model context, size, cost, and request settings for this ImageBench V1 run.
Grok Imagine Image 2.0 is xAI's text-to-image model (released Aug 2026), emphasizing photorealism, natural lighting, physics, and textures. Served via xAI's first-party API (OpenAI-images-compatible). The first xAI model on this board.
GPT Image 2.5 Sunburst is one of two API variants OpenAI released alongside ChatGPT Images 2.5 (September 2026), built for workflows where editing precision matters most.
On ImageBench V1 (192 prompts, 6 categories), Grok Imagine 2.0 scores 73.6 overall with a 75.5% task pass rate, while GPT Image 2.5 Sunburst scores 82.1 overall with a 88% pass rate. The biggest difference is human realism (hands, faces, anatomy): Grok Imagine 2.0 passes 38.1% of those prompts vs 66.7% for GPT Image 2.5 Sunburst. Grok Imagine 2.0 is an API model ($0.04 / image); GPT Image 2.5 Sunburst is an API model (token-based).
GPT Image 2.5 Sunburst is better overall on ImageBench V1, scoring 82.1 vs 73.6. Grok Imagine 2.0 is strongest at text rendering (100%). GPT Image 2.5 Sunburst is strongest at text rendering (100%).
Yes — on the Human realism category of ImageBench V1, Grok Imagine 2.0 passes 38.1% of prompts and GPT Image 2.5 Sunburst passes 66.7%. That is the largest per-category difference between Grok Imagine 2.0 and GPT Image 2.5 Sunburst.
The ImageBench gallery shows Grok Imagine 2.0 and GPT Image 2.5 Sunburst outputs for the same 192 prompts side by side, filterable by category and difficulty — the fastest way to judge them with your own eyes instead of trusting aggregate scores. Open them in the gallery.