OpenAI's GPT-Image-2.5 Topped the Image Arena Leaderboard

OpenAI released GPT-Image-2.5 (Flare and Sunburst), with Sunburst topping LMArena's Image Arena and available via Direct Mode until September 13. Tests show higher quality, half the latency, and unchanged pricing.

2026-09-11 ~ 2026-09-12 · 4 related posts

Full story(2 episodes)→

• Episode 1: OpenAI's GPT-Image-2.5 Topped the Image Arena Leaderboard(2026-09-11, 4 posts)
• Episode 2: OpenAI Releases GPT-Image-2.5: Up to 50% Faster, Adds Watermarks and C2PA Metadata(2026-09-12, 2 posts)

• OpenAI's GPT-Image-2.5 Sunburst Tops Image Arena, Direct Access Ends Sept 13 — arena · 2026-09-11
• GPT Image 2.5 Flare and Sunburst sweep Artificial Analysis Image Arena at half the latency, same price — ArtificialAnlys · 2026-09-12
• GPT Image 2.5 Tops Image Arena, but Old Prompts Cause Artifacts, User Ablations Find — altryne · 2026-09-12
• GPT-Image-2.5 Sunburst appears on Arena, direct access ends Sept 13 — arena · 2026-09-12