# clm_A5E4E46A0243

subject: Cognition (/record/cognition.md)  
predicate: released  
value: SWE-1.5  
valid_from: 2025-10-29  
valid_to: null  
published: 2025-10-29  
recorded: 2026-11-08  
confidence: 0.70  
status: valid  
assertable: true  
superseded_by: null  
last_updated: 2026-11-09  
cite: AsOf. "Cognition released: SWE-1.5", as of 2025-10-29. Claim clm_A5E4E46A0243, https://asof.is/claim/clm_A5E4E46A0243, accessed 2026-11-10. Source: https://cognition.com/blog/swe-1-5.  
checked: 2026-11-09 · its source page states the value and the date  

> Introducing SWE-1.5: Our Fast Agent Model By Jacob Teo, Nikhil Jha, Connor Fogarty, Gary Chang, Theodor Marcu, Edison Zhang, Albert Tam, Sean Sullivan, Swyx, Silas Alberti 2025.10.29 Today we’re releasing SWE-1.5, the latest in our family of models optimized for software engineering.

What https://cognition.com/blog/swe-1-5 says, word for word.

## Sources

- https://cognition.com/blog/swe-1-5 (primary, Cognition, published 2025-10-29)

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