diff --git a/cli/authentication.mdx b/cli/authentication.mdx
index fba961e..e39a337 100644
--- a/cli/authentication.mdx
+++ b/cli/authentication.mdx
@@ -11,33 +11,25 @@ Sprites uses your Fly.io account for authentication. This guide covers setting u
 The simplest way to authenticate:
 
 ```bash
-sprite org auth
+sprite login
 ```
 
-This opens a browser window to authenticate with Fly.io. Once complete, you're ready to use Sprites.
+This opens a browser window where you sign in to Fly.io and approve the CLI. Once complete, you're ready to use Sprites.
 
 ## Authentication Flow
 
 ### 1. Authenticate with Fly.io
 
-If you're already logged into `flyctl`, the Sprites CLI can use your existing session:
-
 ```bash
-sprite org auth
+sprite login
 ```
 
-If you're not logged in or encounter issues:
-
-```bash
-# First, ensure you're logged into fly
-fly auth logout
-fly auth login
+This signs you in to Fly.io in the browser, then adds an API token for your organization. You don't need to be logged into `flyctl` first. If the browser doesn't open, open the link the command prints.
 
-# Verify your flyctl session works
-fly apps list
+To log in to a specific organization:
 
-# Then authenticate with Sprites
-sprite org auth
+```bash
+sprite login -o my-team
 ```
 
 ### 2. Select an Organization
@@ -56,7 +48,7 @@ Organizations:
   another-org
 ```
 
-To switch organizations:
+To add another organization:
 
 ```bash
 sprite org auth --org my-team
@@ -123,7 +115,7 @@ When using file-based storage, `~/.sprites/sprites.json` contains:
 
 ### Adding Organizations
 
-Add tokens for multiple organizations:
+After you log in with `sprite login`, add tokens for more organizations:
 
 ```bash
 # Add another organization
@@ -140,7 +132,7 @@ sprite org list
 sprite -o my-team list
 
 # Set default organization
-sprite org auth --org my-team
+sprite org set-default my-team
 ```
 
 ### Per-Directory Organization
@@ -216,12 +208,7 @@ export SPRITES_API_URL="https://api.sprites.dev"  # Override API endpoint
 
 ```bash
 # Re-authenticate
-sprite org auth
-
-# If that fails, reset and try again
-fly auth logout
-fly auth login
-sprite org auth
+sprite login
 ```
 
 ### Token Not Found
@@ -236,7 +223,7 @@ sprite org keyring disable
 cat ~/.sprites/sprites.json | grep api_token
 
 # Re-authenticate if needed
-sprite org auth
+sprite login
 ```
 
 ### Browser Doesn't Open
@@ -253,8 +240,8 @@ If the authentication browser doesn't open automatically:
 If you get permission errors after authentication:
 
 1. Verify your Fly.io account has access to the organization
-2. Check that your `flyctl` session is valid: `fly apps list`
-3. Try re-authenticating: `sprite org auth`
+2. Check which organizations the CLI has tokens for: `sprite org list`
+3. Try re-authenticating: `sprite login`
 
 ## Security Best Practices
 
diff --git a/quickstart.mdx b/quickstart.mdx
index c1b12a3..1e4671b 100644
--- a/quickstart.mdx
+++ b/quickstart.mdx
@@ -34,14 +34,10 @@ sprite --help
 Sprites uses your Fly.io account for authentication:
 
 ```bash
-sprite org auth
+sprite login
 ```
 
-This opens a browser window to authenticate with Fly.io.
-
-<Info>
-If authentication fails, try running `fly auth logout` followed by `fly auth login` first, then retry `sprite org auth`.
-</Info>
+This opens a browser window where you sign in to Fly.io and approve the CLI. If the browser doesn't open, open the link the command prints.
 
 ## Create Your First Sprite
 
diff --git a/working-with-sprites.mdx b/working-with-sprites.mdx
index 25249fd..771060a 100644
--- a/working-with-sprites.mdx
+++ b/working-with-sprites.mdx
@@ -297,7 +297,7 @@ umount /tmp/sprite-mount
 ### Common Error Scenarios
 
 **Connection errors:**
-- Check auth: `sprite org auth`
+- Re-authenticate: `sprite login`
 - Verify Sprite exists: `sprite list`
 - Wait a moment and retry