OpenAI · proprietary on Arena · first on Arena 22 August 2024

chatgpt-4o-latest

24 days in first place

It held first place on Arena in Text (24 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, “chatgpt-4o-latest · Frontier”, jesseahawkins.com, data retrieved 30 Oct 2026. https://jesseahawkins.com/frontier/chatgpt-4o-latest/. Data: LMArena, Arena leaderboard dataset, revision 4491b06, CC BY 4.0; Epoch AI, Capabilities & benchmarking, CC BY 4.0.

BibTeX

@misc{hawkins2026frontierchatgpt4olatest,
  author = {Hawkins, Jesse},
  title = {{chatgpt-4o-latest · Frontier}},
  year = {2026},
  howpublished = {\url{https://jesseahawkins.com/frontier/chatgpt-4o-latest/}},
  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: 24 days in first place

last on the board 4 September 2024

1st10th

On the board: 22 August 2024 to 4 September 2024
Score: 1316 (1312–1319) on 4 September 2024 · 31,148 votes
First place: 22 August 2024 to 15 September 2024 · 24 days
Catch-up: It left the board on 4 September 2024, 13 days after it first took first place. No open-weights model had matched it.

Not in Epoch AI’s benchmark data

No model in Epoch AI’s list is the same release as this Arena name.

When each vendor retires it

every model’s dates

OpenAI 17 Feb 2026 chatgpt-4o-latest · 91 days’ notice, from the notice on 18 Nov 2025

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. Retirement dates: each vendor’s own deprecation page, quoted and kept, listed with the record.