Google · proprietary on Arena · first on Arena 7 July 2025

imagen-ultra-4.0-generate-001

10 days in first place

It held first place on Arena in Text to image (10 days).

Embed

Who held first place

<iframe src="https://jesseahawkins.com/frontier/embed/" title="Frontier: who held first place on each Arena leaderboard, and for how long" width="100%" height="560" style="border:0;max-width:100%" loading="lazy"></iframe>

Credits LMArena.

The open-weights catch-up

<iframe src="https://jesseahawkins.com/frontier/embed/catch-up/" title="Frontier: the days until open weights matched each closed leader" width="100%" height="900" style="border:0;max-width:100%" loading="lazy"></iframe>

Credits LMArena.

The saturation clock

<iframe src="https://jesseahawkins.com/frontier/embed/clock/" title="Frontier: the days from each benchmark’s release to a model at 90%" width="100%" height="640" style="border:0;max-width:100%" loading="lazy"></iframe>

Credits Epoch AI.

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Cite

This page

Jesse Hawkins, “imagen-ultra-4.0-generate-001 · Frontier”, jesseahawkins.com, data retrieved 30 Oct 2026. https://jesseahawkins.com/frontier/imagen-ultra-4-0-generate-001/. Data: LMArena, Arena leaderboard dataset, revision 4491b06, CC BY 4.0; Epoch AI, Capabilities & benchmarking, CC BY 4.0.

BibTeX

@misc{hawkins2026frontierimagenultra40generate001,
  author = {Hawkins, Jesse},
  title = {{imagen-ultra-4.0-generate-001 · Frontier}},
  year = {2026},
  howpublished = {\url{https://jesseahawkins.com/frontier/imagen-ultra-4-0-generate-001/}},
  note = {Data: LMArena, Arena leaderboard dataset, revision 4491b06, CC BY 4.0; Epoch AI, Capabilities \& benchmarking, CC BY 4.0, retrieved 2026-10-30}
}

Arena · LMArena

LMArena, "Arena leaderboard dataset", Hugging Face, revision 4491b06. https://huggingface.co/datasets/lmarena-ai/leaderboard-dataset. CC BY 4.0.

Benchmarks · Epoch AI

Epoch AI, 'Capabilities & benchmarking'. Published online at epoch.ai. Retrieved from 'https://epoch.ai/benchmarks' [online resource]. CC BY 4.0.

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Text to image: 10 days in first place

last on the board 7 October 2026

1st10th

On the board: 7 July 2025 to 7 October 2026
Score: 1148 (1143–1152) on 7 October 2026 · 388,736 votes
First place: 4 August 2025 to 14 August 2025 · 10 days
Catch-up: Open weights matched it on 1 October 2025, 58 days after it first took first place: hunyuan-image-3.0.

Not in Epoch AI’s benchmark data

No model in Epoch AI’s list is the same release as this Arena name. Epoch does not benchmark image models.

Sources

Arena scores come from people voting between two anonymous answers. First place is the highest score; the top two are often within each other’s margin of error. LMArena, Arena leaderboard dataset, revision 4491b06, retrieved 30 October 2026; Epoch AI, Capabilities & benchmarking, retrieved 30 October 2026. Both CC BY 4.0.