DeepSeek · open weights on Arena · first on Arena 17 June 2025

deepseek-r1-0528

106 days for open weights to match grok-3-preview-02-24

This open-weights model matched the score of grok-3-preview-02-24 in Text 106 days after grok-3-preview-02-24 took first place.

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, “deepseek-r1-0528 · Frontier”, jesseahawkins.com, data retrieved 30 Oct 2026. https://jesseahawkins.com/frontier/deepseek-r1-0528/. Data: LMArena, Arena leaderboard dataset, revision 4491b06, CC BY 4.0; Epoch AI, Capabilities & benchmarking, CC BY 4.0.

BibTeX

@misc{hawkins2026frontierdeepseekr10528,
  author = {Hawkins, Jesse},
  title = {{deepseek-r1-0528 · Frontier}},
  year = {2026},
  howpublished = {\url{https://jesseahawkins.com/frontier/deepseek-r1-0528/}},
  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: best place 3

place 102 of 419 on 28 October 2026

1st10th100th

On the board: 17 June 2025 to 28 October 2026, the newest snapshot
Score: 1428 (1422–1433) on 28 October 2026 · 18,165 votes
Matched: grok-3-preview-02-24 on 17 June 2025, 106 days after it took first place

Epoch AI: DeepSeek-R1 (May 2025)

released 28 May 2025 · Open weights (unrestricted)

GPQA diamond 76.3%
MATH level 5 96.6%
OTIS Mock AIME 2024-2025 66.4%

When each vendor retires it

every model’s dates

Azure AI Foundry 13 Jul 2026 DeepSeek-R1-0528 (version 1)

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.