From 1feb17550257899c27d65f8ee75b9ca47f0a6b95 Mon Sep 17 00:00:00 2001
From: Matt <174058705+asdf8675309@users.noreply.github.com>
Date: Wed, 10 Jun 2026 09:30:12 -0400
Subject: [PATCH] feat: Add Claude Fable 5 model pricing and display name to
 Performance dashboard (tested on macOS)

---
 .../PAI/PULSE/Observability/src/app/performance/page.tsx    | 1 +
 .../v5.0.0/.claude/PAI/PULSE/Performance/cost-aggregator.ts | 6 +++++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/Releases/v5.0.0/.claude/PAI/PULSE/Observability/src/app/performance/page.tsx b/Releases/v5.0.0/.claude/PAI/PULSE/Observability/src/app/performance/page.tsx
index 511ac28803..752a689a16 100644
--- a/Releases/v5.0.0/.claude/PAI/PULSE/Observability/src/app/performance/page.tsx
+++ b/Releases/v5.0.0/.claude/PAI/PULSE/Observability/src/app/performance/page.tsx
@@ -102,6 +102,7 @@ function formatTokens(n: number): string {
 }
 
 function shortModel(m: string): string {
+  if (m.includes("fable")) return "Fable";
   if (m.includes("opus")) return "Opus";
   if (m.includes("haiku")) return "Haiku";
   if (m.includes("sonnet")) return "Sonnet";
diff --git a/Releases/v5.0.0/.claude/PAI/PULSE/Performance/cost-aggregator.ts b/Releases/v5.0.0/.claude/PAI/PULSE/Performance/cost-aggregator.ts
index 727620fab6..6bd9224d76 100644
--- a/Releases/v5.0.0/.claude/PAI/PULSE/Performance/cost-aggregator.ts
+++ b/Releases/v5.0.0/.claude/PAI/PULSE/Performance/cost-aggregator.ts
@@ -21,6 +21,8 @@ const STATE_FILE = join(PAI_DIR, "PULSE", "Performance", "aggregator-state.json"
 
 // Model pricing per million tokens (as of 2026-04)
 const MODEL_PRICING: Record<string, { input: number; output: number; cacheWrite: number; cacheRead: number }> = {
+  // Fable 5
+  "claude-fable-5": { input: 10, output: 50, cacheWrite: 12.50, cacheRead: 1.00 },
   // Opus 4 / 4.6
   "claude-opus-4-20250514": { input: 15, output: 75, cacheWrite: 18.75, cacheRead: 1.50 },
   "claude-opus-4-6": { input: 15, output: 75, cacheWrite: 18.75, cacheRead: 1.50 },
@@ -35,8 +37,10 @@ const MODEL_PRICING: Record<string, { input: number; output: number; cacheWrite:
 function getPricing(model: string): { input: number; output: number; cacheWrite: number; cacheRead: number } {
   // Exact match
   if (MODEL_PRICING[model]) return MODEL_PRICING[model]
-  // Fuzzy match: opus, sonnet, haiku
+  // Fuzzy match: fable, opus, sonnet, haiku — transcripts can carry suffixed
+  // ids (e.g. "claude-fable-5[1m]") that won't exact-match the table
   const lower = model.toLowerCase()
+  if (lower.includes("fable")) return MODEL_PRICING["claude-fable-5"]
   if (lower.includes("opus")) return MODEL_PRICING["claude-opus-4-6"]
   if (lower.includes("haiku")) return MODEL_PRICING["claude-haiku-4-5-20251001"]
   if (lower.includes("sonnet")) return MODEL_PRICING["claude-sonnet-4-6"]