OpenAI · proprietary on Arena · first on Arena 26 March 2025

chatgpt-4o-latest-20250326

118 days in first place

It held first place on Arena in Text (28 days) and Vision (90 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.

Each frame links back to its page. Preview it.

Cite

This page

Jesse Hawkins, “chatgpt-4o-latest-20250326 · Frontier”, jesseahawkins.com, data retrieved 30 Oct 2026. https://jesseahawkins.com/frontier/chatgpt-4o-latest-20250326/. Data: LMArena, Arena leaderboard dataset, revision 4491b06, CC BY 4.0; Epoch AI, Capabilities & benchmarking, CC BY 4.0.

BibTeX

@misc{hawkins2026frontierchatgpt4olatest20250326,
  author = {Hawkins, Jesse},
  title = {{chatgpt-4o-latest-20250326 · Frontier}},
  year = {2026},
  howpublished = {\url{https://jesseahawkins.com/frontier/chatgpt-4o-latest-20250326/}},
  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.

Download

Post on X

Text: 28 days in first place

place 99 of 419 on 28 October 2026

1st10th

On the board: 26 March 2025 to 28 October 2026, the newest snapshot
Score: 1428 (1426–1431) on 28 October 2026 · 81,893 votes
First place: 26 March 2025 to 23 April 2025 · 28 days
Catch-up: Open weights matched it on 1 August 2025, 128 days after it first took first place: qwen3-235b-a22b-instruct-2507.

Vision: 90 days in first place

place 71 of 167 on 19 October 2026

1st10th

On the board: 26 March 2025 to 19 October 2026, the newest snapshot
Score: 1243 (1238–1249) on 19 October 2026 · 23,400 votes
First place: 26 March 2025 to 24 June 2025 · 90 days
Catch-up: Open weights matched it on 1 October 2025, 189 days after it first took first place: qwen3-vl-235b-a22b-instruct.

Epoch AI: GPT-4o (Mar 2025)

released 27 March 2025 · API access

Epoch AI lists this model but has not run any of its own benchmarks on it.

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.