feat: add Claude Fable 5 pricing

README.md

@@ -115,10 +115,11 @@ Claude Code writes one JSONL file per session to `~/.claude/projects/`. Each lin
 
 Costs are calculated using **Anthropic API pricing as of April 2026** ([claude.com/pricing#api](https://claude.com/pricing#api)).
 
-**Only models whose name contains `opus`, `sonnet`, or `haiku` are included in cost calculations.** Local models, unknown models, and any other model names are excluded (shown as `n/a`).
+**Only models whose name contains `fable`, `opus`, `sonnet`, or `haiku` are included in cost calculations.** Local models, unknown models, and any other model names are excluded (shown as `n/a`).
 
 | Model | Input | Output | Cache Write | Cache Read |
 |-------|-------|--------|------------|-----------|
+| claude-fable-5 | $10.00/MTok | $50.00/MTok | $12.50/MTok | $1.00/MTok |
 | claude-opus-4-7 | $5.00/MTok | $25.00/MTok | $6.25/MTok | $0.50/MTok |
 | claude-opus-4-6 | $5.00/MTok | $25.00/MTok | $6.25/MTok | $0.50/MTok |
 | claude-sonnet-4-6 | $3.00/MTok | $15.00/MTok | $3.75/MTok | $0.30/MTok |

cli.py

@@ -17,6 +17,7 @@
 DB_PATH = Path.home() / ".claude" / "usage.db"
 
 PRICING = {
+    "claude-fable-5":    {"input": 10.00, "output": 50.00, "cache_read": 1.00, "cache_write": 12.50},
     "claude-opus-4-7":   {"input": 5.00, "output": 25.00, "cache_read": 0.50, "cache_write": 6.25},
     "claude-opus-4-6":   {"input": 5.00, "output": 25.00, "cache_read": 0.50, "cache_write": 6.25},
     "claude-opus-4-5":   {"input": 5.00, "output": 25.00, "cache_read": 0.50, "cache_write": 6.25},
@@ -38,6 +39,8 @@ def get_pricing(model):
             return PRICING[key]
     # Substring fallback: match model family by keyword
     m = model.lower()
+    if "fable" in m:
+        return PRICING["claude-fable-5"]
     if "opus" in m:
         return PRICING["claude-opus-4-7"]
     if "sonnet" in m:

dashboard.py

@@ -485,6 +485,7 @@ def get_dashboard_data(db_path=DB_PATH):
 
 // ── Pricing (Anthropic API, April 2026) ────────────────────────────────────
 const PRICING = {
+  'claude-fable-5':    { input: 10.00, output: 50.00, cache_write: 12.50, cache_read: 1.00 },
   'claude-opus-4-7':   { input:  5.00, output: 25.00, cache_write:  6.25, cache_read: 0.50 },
   'claude-opus-4-6':   { input:  5.00, output: 25.00, cache_write:  6.25, cache_read: 0.50 },
   'claude-opus-4-5':   { input:  5.00, output: 25.00, cache_write:  6.25, cache_read: 0.50 },
@@ -499,7 +500,7 @@ def get_dashboard_data(db_path=DB_PATH):
 function isBillable(model) {
   if (!model) return false;
   const m = model.toLowerCase();
-  return m.includes('opus') || m.includes('sonnet') || m.includes('haiku');
+  return m.includes('fable') || m.includes('opus') || m.includes('sonnet') || m.includes('haiku');
 }
 
 function getPricing(model) {
@@ -509,6 +510,7 @@ def get_dashboard_data(db_path=DB_PATH):
     if (model.startsWith(key)) return PRICING[key];
   }
   const m = model.toLowerCase();
+  if (m.includes('fable'))  return PRICING['claude-fable-5'];
   if (m.includes('opus'))   return PRICING['claude-opus-4-7'];
   if (m.includes('sonnet')) return PRICING['claude-sonnet-4-6'];
   if (m.includes('haiku'))  return PRICING['claude-haiku-4-5'];
@@ -675,10 +677,11 @@ def get_dashboard_data(db_path=DB_PATH):
 // ── Model filter ───────────────────────────────────────────────────────────
 function modelPriority(m) {
   const ml = m.toLowerCase();
-  if (ml.includes('opus'))   return 0;
-  if (ml.includes('sonnet')) return 1;
-  if (ml.includes('haiku'))  return 2;
-  return 3;
+  if (ml.includes('fable'))  return 0;
+  if (ml.includes('opus'))   return 1;
+  if (ml.includes('sonnet')) return 2;
+  if (ml.includes('haiku'))  return 3;
+  return 4;
 }
 
 function readURLModels(allModels) {

scanner.py

@@ -15,7 +15,7 @@
 DEFAULT_PROJECTS_DIRS = [PROJECTS_DIR, XCODE_PROJECTS_DIR]
 
 # Higher number = higher priority when choosing a session's primary model
-MODEL_PRIORITY = {"opus": 3, "sonnet": 2, "haiku": 1}
+MODEL_PRIORITY = {"fable": 4, "opus": 3, "sonnet": 2, "haiku": 1}
 
 
 def _model_priority(model):

tests/test_cli.py

@@ -15,13 +15,27 @@ def test_exact_model_match(self):
         self.assertEqual(p["output"], 25.00)
 
     def test_all_known_models_have_pricing(self):
-        for model in ("claude-opus-4-7", "claude-opus-4-6", "claude-opus-4-5",
+        for model in ("claude-fable-5",
+                       "claude-opus-4-7", "claude-opus-4-6", "claude-opus-4-5",
                        "claude-sonnet-4-7", "claude-sonnet-4-6", "claude-sonnet-4-5",
                        "claude-haiku-4-7", "claude-haiku-4-6", "claude-haiku-4-5"):
             p = get_pricing(model)
             self.assertGreater(p["input"], 0, f"Missing input price for {model}")
             self.assertGreater(p["output"], 0, f"Missing output price for {model}")
 
+    def test_fable_5_has_explicit_entry(self):
+        """Fable 5 must be present as an explicit entry, not resolved via a
+        generic substring fallback."""
+        self.assertIn("claude-fable-5", PRICING)
+        p = get_pricing("claude-fable-5")
+        self.assertEqual(p["input"], 10.00)
+        self.assertEqual(p["output"], 50.00)
+
+    def test_fable_substring_fallback(self):
+        """An unrecognized fable-family id resolves to Fable 5 pricing."""
+        p = get_pricing("claude-fable-5-20260601")
+        self.assertEqual(p["input"], 10.00)
+
     def test_opus_4_7_has_explicit_entry(self):
         """Regression guard for issue #61 — Opus 4.7 must be present."""
         p = get_pricing("claude-opus-4-7")

tests/test_scanner.py

@@ -10,9 +10,24 @@
 from scanner import (
     get_db, init_db, project_name_from_cwd, parse_jsonl_file,
     aggregate_sessions, upsert_sessions, insert_turns, scan,
+    _model_priority,
 )
 
 
+class TestModelPriority(unittest.TestCase):
+    def test_fable_outranks_opus(self):
+        self.assertGreater(
+            _model_priority("claude-fable-5"),
+            _model_priority("claude-opus-4-7"),
+        )
+
+    def test_descending_order(self):
+        order = ["claude-fable-5", "claude-opus-4-7",
+                 "claude-sonnet-4-6", "claude-haiku-4-5", "gpt-4o"]
+        scores = [_model_priority(m) for m in order]
+        self.assertEqual(scores, sorted(scores, reverse=True))
+
+
 class TestProjectNameFromCwd(unittest.TestCase):
     def test_two_components(self):
         self.assertEqual(project_name_from_cwd("/home/user/myproject"), "user/myproject")