feat(pricing): refresh catalog pricing snapshot

Add the free minimax/minimax-m3-free and minimax/minimax-m2.7-free
promotional variants (free through September 5, 2026) and
tencent/hy4-preview, drop the retired stealth/ox-alpha, and refresh the
model-id and pricing snapshots to the current 62-model catalog verified
on 2026-08-28.

tests/fixtures/commandcode-model-ids.json

@@ -1,5 +1,5 @@
 {
-  "fetchedAt": "2026-08-25T13:32:11.631Z",
+  "fetchedAt": "2026-08-28T09:27:52.554Z",
   "source": "https://api.commandcode.ai/provider/v1/models",
   "modelIds": [
     "claude-sonnet-5",
@@ -32,6 +32,8 @@
     "zai-org/GLM-5",
     "MiniMaxAI/MiniMax-M3",
     "MiniMaxAI/MiniMax-M2.7",
+    "minimax/minimax-m3-free",
+    "minimax/minimax-m2.7-free",
     "MiniMaxAI/MiniMax-M2.5",
     "xiaomi/mimo-v2.5-pro",
     "xiaomi/mimo-v2.5",
@@ -46,6 +48,7 @@
     "stepfun/Step-3.7-Flash",
     "stepfun/Step-3.5-Flash",
     "tencent/hy3-paid",
+    "tencent/hy4-preview",
     "google/gemini-3.7-flash",
     "google/gemini-3.6-flash",
     "google/gemini-3.5-flash",
@@ -55,7 +58,6 @@
     "nvidia/nemotron-3-ultra-550b-a55b",
     "thinkingmachines/inkling",
     "thinkingmachines/inkling-small",
-    "stealth/ox-alpha",
     "poolside/laguna-s-2.1-free",
     "meta/muse-spark-1.1",
     "meta/muse-spark-1.2",

tests/fixtures/commandcode-pricing.json

@@ -1,5 +1,5 @@
 {
-  "verifiedAt": "2026-08-25",
+  "verifiedAt": "2026-08-28",
   "source": "https://commandcode.ai/docs/resources/pricing-limits",
   "tierPolicy": "Use request-wide input tiers; the highest threshold exceeded by input plus cache tokens applies to the full request.",
   "tiers": {
@@ -40,12 +40,14 @@
     "Qwen/Qwen3.6-Plus": [0.5, 3, 0.1, 0],
     "stepfun/Step-3.7-Flash": [0.2, 1.15, 0.04, 0],
     "stepfun/Step-3.5-Flash": [0.1, 0.3, 0.02, 0],
+    "minimax/minimax-m3-free": [0, 0, 0, 0],
+    "minimax/minimax-m2.7-free": [0, 0, 0, 0],
     "tencent/hy3-paid": [0.14, 0.58, 0.035, 0],
+    "tencent/hy4-preview": [0.834, 2.501, 0.042, 0],
     "nvidia/nemotron-3-ultra-550b-a55b": [0.6, 2.4, 0.12, 0],
     "thinkingmachines/inkling": [1, 4.05, 0.17, 0],
     "thinkingmachines/inkling-small": [0.5, 1.2, 0.1, 0],
     "poolside/laguna-s-2.1-free": [0, 0, 0, 0],
-    "stealth/ox-alpha": [0, 0, 0, 0],
     "claude-sonnet-5": [2, 10, 0.2, 2.5],
     "claude-sonnet-4-6": [3, 15, 0.3, 3.75],
     "claude-fable-5": [10, 50, 1, 12.5],

tests/test-pricing.ts

@@ -27,7 +27,11 @@ const fixtureUrl = new URL("./fixtures/commandcode-model-ids.json", import.meta.
 const fixture = JSON.parse(await readFile(fixtureUrl, "utf-8")) as ModelCatalogSnapshot
 const pricingFixtureUrl = new URL("./fixtures/commandcode-pricing.json", import.meta.url)
 const pricingFixture = JSON.parse(await readFile(pricingFixtureUrl, "utf-8")) as PricingSnapshot
-const freeModels = new Set(["poolside/laguna-s-2.1-free", "stealth/ox-alpha"])
+const freeModels = new Set([
+  "poolside/laguna-s-2.1-free",
+  "minimax/minimax-m3-free",
+  "minimax/minimax-m2.7-free",
+])
 
 function assertCost(
   modelId: string,
@@ -50,7 +54,7 @@ function assertCost(
 describe("MODEL_COSTS pricing overlay", () => {
   it("covers the current Command Code model catalog snapshot", () => {
     assert.equal(fixture.source, "https://api.commandcode.ai/provider/v1/models")
-    assert.match(fixture.fetchedAt, /^2026-08-25T/)
+    assert.match(fixture.fetchedAt, /^2026-08-28T/)
 
     const catalogIds = [...fixture.modelIds].sort()
     const pricedIds = Object.keys(MODEL_COSTS).sort()
@@ -156,6 +160,12 @@ describe("MODEL_COSTS pricing overlay", () => {
       cacheRead: 0.03,
       cacheWrite: 0,
     })
+    assertCost("tencent/hy4-preview", {
+      input: 0.834,
+      output: 2.501,
+      cacheRead: 0.042,
+      cacheWrite: 0,
+    })
     assertCost("google/gemini-3.7-flash", {
       input: 0.75,
       output: 3.75,
@@ -208,7 +218,7 @@ describe("MODEL_COSTS pricing overlay", () => {
 
   it("tracks pricing provenance", () => {
     assert.equal(PRICING_SOURCE_URL, "https://commandcode.ai/docs/resources/pricing-limits")
-    assert.equal(PRICING_LAST_VERIFIED, "2026-08-25")
+    assert.equal(PRICING_LAST_VERIFIED, "2026-08-28")
   })
 
   it("fails once temporary pricing needs review", () => {