Flex: Fantasy Football AI

About Flex: Fantasy Football AI

Flex is your AI fantasy football co-pilot. Connect your Sleeper, ESPN or Yahoo league and Flex reads your real roster, your league's scoring settings and the rest of your schedule, then tells you exactly what to do about it. Every call leads with the verdict, not a wall of numbers.

Your fantasy football season is decided by a hundred small decisions: who to start, who to sit, which waiver claim to make, which trade to pull the trigger on. Flex is built to win those decisions for your team, in your league, every single week.

WHAT FLEX DOES

Team Rating
A single 0-100 score showing how your roster stacks up against the best possible team in your league for the rest of the season. Tap in to see which positions are carrying you and which are costing you wins.

AI Start/Sit and Lineup Optimizer
The optimal lineup for this week and the rest of the season, with the reasoning behind every start/sit call and clear flags on the decisions that are genuinely close. No more agonising over your FLEX spot on Sunday morning.

Waiver Wire Advice
Real pickup recommendations based on who is actually available in your league, what the move is worth to your season, and the FAAB bid or waiver priority it is worth spending. Get ahead of the wire before your leaguemates panic.

AI Trade Analyzer
Flex scans every roster in your league for trades that make both sides better, then shows you what each one does to your rating, your record, your playoff odds and your title odds. Build your own offer in the trade evaluator and get the same read before you send it.

Rest-of-Season Outlook
Projected finish, playoff odds and championship odds, plus a week-by-week look at your remaining matchups, so you know which weeks you have to win.

Multi-League Support
Sync all your leagues and switch between them instantly.

BUILT FOR REAL LEAGUES

Most fantasy football advice is one-size-fits-all. Flex is not. It reads your actual league settings, including roster slots like FLEX and superflex, custom and PPR scoring, keeper and dynasty formats, and league size. Advice built for a 10-team half-PPR league is not the advice you need in a 12-team superflex, and Flex knows the difference.

WHY FLEX

Everyone in your league is reading the same rankings and listening to the same podcasts. If the whole league is following it, nobody has an edge. Flex works from your league instead, so the call you get is one no one else in your league is getting. It is a co-pilot, not autopilot: every recommendation comes with the reasoning, so the decision stays yours.

SUPPORTED PLATFORMS

Sleeper, ESPN and Yahoo. Connect a league in seconds, no manual entry and no spreadsheets.

GETTING STARTED

No account needed to try it. Pick your platform, connect a league, and Flex has your team analyzed in seconds. Flex is free with one connected league and the full My Team page. Flex Pro unlocks waiver intelligence, the trade analyzer, the full Players board and unlimited leagues, free for 7 days then $29.99 per year.

Win your league, or your money back.

Flex Fantasy is not affiliated with or endorsed by the NFL, Sleeper, ESPN or Yahoo.