Xiaomi · open weights on Arena · first on Arena 24 September 2026

mimo-v2.6-pro

313 days for open weights to match gemini-3-pro

This open-weights model matched the score of gemini-3-pro in Text 313 days after gemini-3-pro 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.

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Cite

This page

Jesse Hawkins, “mimo-v2.6-pro · Frontier”, jesseahawkins.com, data retrieved 30 Oct 2026. https://jesseahawkins.com/frontier/mimo-v2-6-pro/. Data: LMArena, Arena leaderboard dataset, revision 4491b06, CC BY 4.0; Epoch AI, Capabilities & benchmarking, CC BY 4.0.

BibTeX

@misc{hawkins2026frontiermimov26pro,
  author = {Hawkins, Jesse},
  title = {{mimo-v2.6-pro · Frontier}},
  year = {2026},
  howpublished = {\url{https://jesseahawkins.com/frontier/mimo-v2-6-pro/}},
  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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Post on X

Text: best place 9

place 12 of 419 on 28 October 2026

1st10th

On the board: 25 September 2026 to 28 October 2026, the newest snapshot
Score: 1491 (1482–1501) on 28 October 2026 · 4,037 votes
Matched: gemini-3-pro on 25 September 2026, 313 days after it took first place

WebDev: best place 19

place 25 of 152 on 28 October 2026

1st10th

On the board: 24 September 2026 to 28 October 2026, the newest snapshot
Score: 1625 (1617–1634) on 28 October 2026 · 6,820 votes

Vision: best place 45

place 53 of 167 on 19 October 2026

1st10th

On the board: 28 September 2026 to 19 October 2026, the newest snapshot
Score: 1263 (1248–1278) on 19 October 2026 · 1,754 votes

Epoch AI: MiMo-V2.6 Pro

released 21 September 2026 · access not given

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.