No offer was made, according to general manager Neil Olshey, but a "conceptual framework" was discussed and both sides are said to be very interested in each other.
"The meeting with LeBron went really well, but this is like the recruiting period in college," Olshey said. "You don't just recruit one guy. The players are doing the same thing. They understand what's going on. Mike wants to be patient right now too.
"There's going to be a very competitive market for Mike and we're in that market."
Miller averaged 10.9 points a game on 50 percent shooting from the field, including 48 percent from beyond the 3-point arc. He also contributed 3.9 assists a game in 54 games with the Washington Wizards.
Earlier in the week, Miller had initial conversations with the Los Angeles Lakers, but because of salary cap restrictions, they could not reach Miller's asking price.
Miller is seeking a multiyear contract above the mid-level exception valued at $5.8 million a year for up to five seasons.
Ramona Shelburne is a reporter and columnist for ESPNLosAngeles.com.