March 25 (Reuters) - Nvidia ( NVDA )-backed startup Reflection AI is in talks to raise $2.5 billion at a valuation of $25 billion, the Wall Street Journal reported on Wednesday, citing people familiar with the matter. 

Here are some details:

* JPMorgan Chase is considering participating in the fundinground through its Security and Resiliency Initiative, the reportsaid.  * The proposed $25 billion valuation for Reflection reflectsits pre-money valuation, before the $2.5 billion investment,according to the WSJ. * Reuters could not immediately verify the report. * Reflection did not immediately respond to Reuters' requestfor comment.   * The proposed valuation for Reflection marks an increasefrom the more than $20 billion level the company had reportedlytargeted, according to a Financial Times report earlier thismonth.