fix: New OpenAI Terra & Luna Pricing

providers/openai/models/gpt-5.6-luna.toml

@@ -1,21 +1,24 @@
+# Sources:
+# - https://developers.openai.com/api/docs/pricing (Standard + Fast mode; verified 2026-07-30)
+# - https://x.com/OpenAI/status/2082878156483219672 (80% Luna price reduction)
 base_model = "openai/gpt-5.6-luna"
 reasoning_options = [{ type = "effort", values = ["none", "low", "medium", "high", "xhigh", "max"] }]
 
 [cost]
-input = 1.00
-output = 6.00
-cache_read = 0.10
-cache_write = 1.25
+input = 0.20
+output = 1.20
+cache_read = 0.02
+cache_write = 0.25
 
 [[cost.tiers]]
 tier = { size = 272_000 }
-input = 2.00
-output = 9.00
-cache_read = 0.20
-cache_write = 2.50
+input = 0.40
+output = 1.80
+cache_read = 0.04
+cache_write = 0.50
 
 [experimental.modes.fast]
-cost = { input = 2.00, output = 12.00, cache_read = 0.20, cache_write = 2.50 }
+cost = { input = 0.40, output = 2.40, cache_read = 0.04, cache_write = 0.50 }
 provider = { body = { service_tier = "priority" } }
 
 [experimental.modes.pro]

providers/openai/models/gpt-5.6-terra.toml

@@ -1,21 +1,24 @@
+# Sources:
+# - https://developers.openai.com/api/docs/pricing (Standard + Fast mode; verified 2026-07-30)
+# - https://x.com/OpenAI/status/2082878156483219672 (20% Terra price reduction)
 base_model = "openai/gpt-5.6-terra"
 reasoning_options = [{ type = "effort", values = ["none", "low", "medium", "high", "xhigh", "max"] }]
 
 [cost]
-input = 2.50
-output = 15.00
-cache_read = 0.25
-cache_write = 3.125
+input = 2.00
+output = 12.00
+cache_read = 0.20
+cache_write = 2.50
 
 [[cost.tiers]]
 tier = { size = 272_000 }
-input = 5.00
-output = 22.50
-cache_read = 0.50
-cache_write = 6.25
+input = 4.00
+output = 18.00
+cache_read = 0.40
+cache_write = 5.00
 
 [experimental.modes.fast]
-cost = { input = 5.00, output = 30.00, cache_read = 0.50, cache_write = 6.25 }
+cost = { input = 4.00, output = 24.00, cache_read = 0.40, cache_write = 5.00 }
 provider = { body = { service_tier = "priority" } }
 
 [experimental.modes.pro]