# clm_ABD6E2904AA7

subject: Preferred Networks (/record/preferred-networks.md)  
predicate: released  
value: ChainerMN  
valid_from: 2017-09-01  
valid_to: null  
published: 2017-05-08  
recorded: 2026-11-15  
confidence: 0.70  
status: valid  
assertable: true  
superseded_by: null  
last_updated: 2026-11-15  
cite: AsOf. "Preferred Networks released: ChainerMN", as of 2017-09-01. Claim clm_ABD6E2904AA7, https://asof.is/claim/clm_ABD6E2904AA7, accessed 2026-11-15. Source: https://www.preferred.jp/en/news/pr20170509.  
checked: 2026-11-15 · its source page states the value and the date, as read by an AI model  

> Tokyo, Japan, September 1, 2017 – Preferred Networks, Inc. (PFN, Headquarters: Chiyoda-ku, Tokyo, President and CEO: Toru Nishikawa) has released the official version 1.0.0 of ChainerMN※1

What https://www.preferred.jp/en/news/pr20170901 says, word for word.

## Sources

- https://www.preferred.jp/en/news/pr20170509 (primary, Preferred Networks, published 2017-05-08)
- https://www.preferred.jp/en/news/pr20170901 (primary, Preferred Networks, published 2017-08-31)

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