diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1d569b0d43..2ab692c539 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,7 @@
 - Command Code: add browser-cookie provider support for monthly USD billing credits (#857). Thanks @sixhobbits!
 - StepFun: add username/password or Oasis-Token provider support for Step Plan rate-limit tracking (#815). Thanks @tevenfeng!
 - OpenRouter, Mistral, and Kimi K2: show balance/spend metrics in menu bar text when quota percentage is not useful (#853). Thanks @willytop8!
+- Usage pace: show session-level pace indicators for Codex and Claude 5-hour windows (#355). Thanks @johnlarkin1!
 
 ### Fixes
 - Startup: avoid blocking menu-bar creation on synchronous defaults migration/default seeding when macOS preferences services stall.
diff --git a/Sources/CodexBar/MenuCardView+ModelHelpers.swift b/Sources/CodexBar/MenuCardView+ModelHelpers.swift
index 33048c9b30..c59a4977c7 100644
--- a/Sources/CodexBar/MenuCardView+ModelHelpers.swift
+++ b/Sources/CodexBar/MenuCardView+ModelHelpers.swift
@@ -2,6 +2,13 @@ import CodexBarCore
 import SwiftUI
 
 extension UsageMenuCardView.Model {
+    struct PaceDetail {
+        let leftLabel: String
+        let rightLabel: String?
+        let pacePercent: Double?
+        let paceOnTop: Bool
+    }
+
     static func progressColor(for provider: UsageProvider) -> Color {
         let color = ProviderDescriptorRegistry.descriptor(for: provider).branding.color
         return Color(red: color.red, green: color.green, blue: color.blue)
@@ -14,4 +21,47 @@ extension UsageMenuCardView.Model {
     {
         UsageFormatter.resetLine(for: window, style: style, now: now)
     }
+
+    static func sessionPaceDetail(
+        provider: UsageProvider,
+        window: RateWindow,
+        now: Date,
+        showUsed: Bool) -> PaceDetail?
+    {
+        guard let detail = UsagePaceText.sessionDetail(provider: provider, window: window, now: now) else { return nil }
+        let expectedUsed = detail.expectedUsedPercent
+        let actualUsed = window.usedPercent
+        let expectedPercent = showUsed ? expectedUsed : (100 - expectedUsed)
+        let actualPercent = showUsed ? actualUsed : (100 - actualUsed)
+        if expectedPercent.isFinite == false || actualPercent.isFinite == false { return nil }
+        let paceOnTop = actualUsed <= expectedUsed
+        let pacePercent: Double? = if detail.stage == .onTrack { nil } else { expectedPercent }
+        return PaceDetail(
+            leftLabel: detail.leftLabel,
+            rightLabel: detail.rightLabel,
+            pacePercent: pacePercent,
+            paceOnTop: paceOnTop)
+    }
+
+    static func weeklyPaceDetail(
+        window: RateWindow,
+        now: Date,
+        pace: UsagePace?,
+        showUsed: Bool) -> PaceDetail?
+    {
+        guard let pace else { return nil }
+        let detail = UsagePaceText.weeklyDetail(pace: pace, now: now)
+        let expectedUsed = detail.expectedUsedPercent
+        let actualUsed = window.usedPercent
+        let expectedPercent = showUsed ? expectedUsed : (100 - expectedUsed)
+        let actualPercent = showUsed ? actualUsed : (100 - actualUsed)
+        if expectedPercent.isFinite == false || actualPercent.isFinite == false { return nil }
+        let paceOnTop = actualUsed <= expectedUsed
+        let pacePercent: Double? = if detail.stage == .onTrack { nil } else { expectedPercent }
+        return PaceDetail(
+            leftLabel: detail.leftLabel,
+            rightLabel: detail.rightLabel,
+            pacePercent: pacePercent,
+            paceOnTop: paceOnTop)
+    }
 }
diff --git a/Sources/CodexBar/MenuCardView.swift b/Sources/CodexBar/MenuCardView.swift
index 62e7ecdafc..fb3b20f8b8 100644
--- a/Sources/CodexBar/MenuCardView.swift
+++ b/Sources/CodexBar/MenuCardView.swift
@@ -1145,6 +1145,17 @@ extension UsageMenuCardView.Model {
         // Abacus: show credits as detail, compute pace on the primary monthly window
         var primaryPacePercent: Double?
         var primaryPaceOnTop = true
+        if let paceDetail = Self.sessionPaceDetail(
+            provider: input.provider,
+            window: primary,
+            now: input.now,
+            showUsed: input.usageBarsShowUsed)
+        {
+            primaryDetailLeft = paceDetail.leftLabel
+            primaryDetailRight = paceDetail.rightLabel
+            primaryPacePercent = paceDetail.pacePercent
+            primaryPaceOnTop = paceDetail.paceOnTop
+        }
         if input.provider == .abacus {
             if let detail = primary.resetDescription,
                !detail.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty
@@ -1292,7 +1303,11 @@ extension UsageMenuCardView.Model {
             case .session:
                 title = input.metadata.sessionLabel
                 id = "primary"
-                paceDetail = nil
+                paceDetail = Self.sessionPaceDetail(
+                    provider: input.provider,
+                    window: window,
+                    now: input.now,
+                    showUsed: input.usageBarsShowUsed)
             case .weekly:
                 title = input.metadata.weeklyLabel
                 id = "secondary"
@@ -1411,35 +1426,6 @@ extension UsageMenuCardView.Model {
         return "\(remaining)/\(limit) left"
     }
 
-    private struct PaceDetail {
-        let leftLabel: String
-        let rightLabel: String?
-        let pacePercent: Double?
-        let paceOnTop: Bool
-    }
-
-    private static func weeklyPaceDetail(
-        window: RateWindow,
-        now: Date,
-        pace: UsagePace?,
-        showUsed: Bool) -> PaceDetail?
-    {
-        guard let pace else { return nil }
-        let detail = UsagePaceText.weeklyDetail(pace: pace, now: now)
-        let expectedUsed = detail.expectedUsedPercent
-        let actualUsed = window.usedPercent
-        let expectedPercent = showUsed ? expectedUsed : (100 - expectedUsed)
-        let actualPercent = showUsed ? actualUsed : (100 - actualUsed)
-        if expectedPercent.isFinite == false || actualPercent.isFinite == false { return nil }
-        let paceOnTop = actualUsed <= expectedUsed
-        let pacePercent: Double? = if detail.stage == .onTrack { nil } else { expectedPercent }
-        return PaceDetail(
-            leftLabel: detail.leftLabel,
-            rightLabel: detail.rightLabel,
-            pacePercent: pacePercent,
-            paceOnTop: paceOnTop)
-    }
-
     private static func syntheticRegenDetail(
         weekly: RateWindow,
         cost: ProviderCostSnapshot?,
diff --git a/Sources/CodexBar/MenuDescriptor.swift b/Sources/CodexBar/MenuDescriptor.swift
index 5afc44eb44..d18c1b45ea 100644
--- a/Sources/CodexBar/MenuDescriptor.swift
+++ b/Sources/CodexBar/MenuDescriptor.swift
@@ -186,6 +186,9 @@ struct MenuDescriptor {
                     let paceSummary = UsagePaceText.weeklySummary(pace: pace)
                     entries.append(.text(paceSummary, .secondary))
                 }
+                if let paceSummary = UsagePaceText.sessionSummary(provider: provider, window: primary) {
+                    entries.append(.text(paceSummary, .secondary))
+                }
             }
             if let weekly = snap.secondary {
                 let weeklyResetOverride: String? = {
diff --git a/Sources/CodexBar/UsagePaceText.swift b/Sources/CodexBar/UsagePaceText.swift
index 94d1ed5653..f24f1d0298 100644
--- a/Sources/CodexBar/UsagePaceText.swift
+++ b/Sources/CodexBar/UsagePaceText.swift
@@ -70,4 +70,29 @@ enum UsagePaceText {
         let rounded = (percent / 5).rounded() * 5
         return Int(rounded)
     }
+
+    static func sessionPace(provider: UsageProvider, window: RateWindow, now: Date) -> UsagePace? {
+        guard provider == .codex || provider == .claude else { return nil }
+        guard window.remainingPercent > 0 else { return nil }
+        guard let pace = UsagePace.weekly(window: window, now: now, defaultWindowMinutes: 300) else { return nil }
+        guard pace.expectedUsedPercent >= 3 else { return nil }
+        return pace
+    }
+
+    static func sessionDetail(provider: UsageProvider, window: RateWindow, now: Date = .init()) -> WeeklyDetail? {
+        guard let pace = sessionPace(provider: provider, window: window, now: now) else { return nil }
+        return WeeklyDetail(
+            leftLabel: Self.detailLeftLabel(for: pace),
+            rightLabel: Self.detailRightLabel(for: pace, now: now),
+            expectedUsedPercent: pace.expectedUsedPercent,
+            stage: pace.stage)
+    }
+
+    static func sessionSummary(provider: UsageProvider, window: RateWindow, now: Date = .init()) -> String? {
+        guard let detail = sessionDetail(provider: provider, window: window, now: now) else { return nil }
+        if let rightLabel = detail.rightLabel {
+            return "Pace: \(detail.leftLabel) · \(rightLabel)"
+        }
+        return "Pace: \(detail.leftLabel)"
+    }
 }
diff --git a/Tests/CodexBarTests/UsagePaceTests.swift b/Tests/CodexBarTests/UsagePaceTests.swift
index c1bfd769a3..0de92b0986 100644
--- a/Tests/CodexBarTests/UsagePaceTests.swift
+++ b/Tests/CodexBarTests/UsagePaceTests.swift
@@ -75,4 +75,23 @@ struct UsagePaceTests {
 
         #expect(pace == nil)
     }
+
+    @Test
+    func `session pace computes delta and eta for five hour window`() {
+        let now = Date(timeIntervalSince1970: 0)
+        let window = RateWindow(
+            usedPercent: 50,
+            windowMinutes: 300,
+            resetsAt: now.addingTimeInterval(2 * 3600),
+            resetDescription: nil)
+
+        let pace = UsagePace.weekly(window: window, now: now, defaultWindowMinutes: 300)
+
+        #expect(pace != nil)
+        guard let pace else { return }
+        #expect(abs(pace.expectedUsedPercent - 60.0) < 0.01)
+        #expect(abs(pace.deltaPercent - -10.0) < 0.01)
+        #expect(pace.stage == .behind)
+        #expect(pace.willLastToReset == true)
+    }
 }
diff --git a/Tests/CodexBarTests/UsagePaceTextTests.swift b/Tests/CodexBarTests/UsagePaceTextTests.swift
index 987f2d1e8e..a5f6874565 100644
--- a/Tests/CodexBarTests/UsagePaceTextTests.swift
+++ b/Tests/CodexBarTests/UsagePaceTextTests.swift
@@ -67,4 +67,86 @@ struct UsagePaceTextTests {
 
         #expect(detail.rightLabel == "Runs out in 2d · ≈ 70% run-out risk")
     }
+
+    // MARK: - Session pace (5-hour window)
+
+    @Test
+    func `session pace detail provides left right labels`() {
+        let now = Date(timeIntervalSince1970: 0)
+        // 300-minute window, 2h remaining => 3h elapsed out of 5h
+        // expected = 60%, actual = 80% => 20% ahead (in deficit)
+        let window = RateWindow(
+            usedPercent: 80,
+            windowMinutes: 300,
+            resetsAt: now.addingTimeInterval(2 * 3600),
+            resetDescription: nil)
+
+        let detail = UsagePaceText.sessionDetail(provider: .claude, window: window, now: now)
+
+        #expect(detail != nil)
+        #expect(detail?.leftLabel == "20% in deficit")
+        #expect(detail?.rightLabel != nil)
+        #expect(detail?.stage == .farAhead)
+    }
+
+    @Test
+    func `session pace detail reports lasts until reset`() {
+        let now = Date(timeIntervalSince1970: 0)
+        // 300-minute window, 2h remaining => 3h elapsed
+        // expected = 60%, actual = 10% => far behind (in reserve)
+        let window = RateWindow(
+            usedPercent: 10,
+            windowMinutes: 300,
+            resetsAt: now.addingTimeInterval(2 * 3600),
+            resetDescription: nil)
+
+        let detail = UsagePaceText.sessionDetail(provider: .claude, window: window, now: now)
+
+        #expect(detail != nil)
+        #expect(detail?.leftLabel == "50% in reserve")
+        #expect(detail?.rightLabel == "Lasts until reset")
+    }
+
+    @Test
+    func `session pace summary formats single line text`() {
+        let now = Date(timeIntervalSince1970: 0)
+        let window = RateWindow(
+            usedPercent: 80,
+            windowMinutes: 300,
+            resetsAt: now.addingTimeInterval(2 * 3600),
+            resetDescription: nil)
+
+        let summary = UsagePaceText.sessionSummary(provider: .claude, window: window, now: now)
+
+        #expect(summary != nil)
+        #expect(summary?.hasPrefix("Pace:") == true)
+    }
+
+    @Test
+    func `session pace detail hides for unsupported provider`() {
+        let now = Date(timeIntervalSince1970: 0)
+        let window = RateWindow(
+            usedPercent: 50,
+            windowMinutes: 300,
+            resetsAt: now.addingTimeInterval(2 * 3600),
+            resetDescription: nil)
+
+        let detail = UsagePaceText.sessionDetail(provider: .zai, window: window, now: now)
+
+        #expect(detail == nil)
+    }
+
+    @Test
+    func `session pace detail hides when reset is missing`() {
+        let now = Date(timeIntervalSince1970: 0)
+        let window = RateWindow(
+            usedPercent: 50,
+            windowMinutes: 300,
+            resetsAt: nil,
+            resetDescription: nil)
+
+        let detail = UsagePaceText.sessionDetail(provider: .claude, window: window, now: now)
+
+        #expect(detail == nil)
+    }
 }