AIQuiet · 37h

DeepSeek reaches 64% market share, tripling from 25% in three months

Open-source AI model gains rapid dominance as proprietary systems face competition.

DeepSeek's market share surged to 64% in September 2026, up from 25% in late June.
The rapid growth suggests open-source AI models are displacing proprietary alternatives.
The shift marks a significant market consolidation within three months.

DeepSeek AI model provider

8 AM4 PMtoday8 AMnow · 9:31 PM ET

1 Yesterday

“DeepSeek has 64% market share today. 3 months ago, it had at 25%. open models are winning…”
— @gherget
- DeepSeek has 64% market share today 3 months ago, it had at 25% open models are winning
  
  @ghergetX1d ago3▲view on X ↗
1 more of the top 2 · 2 posts in this stretch
- DeepSeek has 64% market share https:// twitter.com/gherget/status/210 4155774910083275 C: https:// news.ycombinator.com/item?id=4 9865452 posted on 2026.09.27 at 06:40:07 (c=1, p=4)
  
  hkrn@mstdn.socialMastodon1d ago1▲view on Mastodon ↗
all of them →
backgroundJun 27

DeepSeek held 25% market share — Three months before late September 2026, DeepSeek commanded a quarter of the market.

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