feat(kiro): register GPT-5.6 Sol/Terra/Luna model family (#7209)

* feat(kiro): register GPT-5.6 Sol/Terra/Luna model family

Kiro announced its first OpenAI-family models on 2026-07-14
(kiro.dev/changelog/models): GPT-5.6 Sol (flagship), Terra (balanced
mid-tier) and Luna (fastest/cheapest), all sharing a 272k context
window. Registers the three base model ids in the kiro provider
registry with contextLength/maxOutputTokens so getResolvedModelCapabilities()
resolves the real 272k window instead of falling back to the generic
default. OmniRoute derives the thinking/agentic synthetic variants and
per-account rate multipliers dynamically at discovery time
(open-sse/services/kiroModels.ts), so only the three base entries need
static registration here.

Co-authored-by: Edison42 <gn00742754@gmail.com>
Inspired-by: https://github.com/decolua/9router/pull/2596

* chore(changelog): fragment for #7209

* fix(kiro): add GPT-5.6 Sol/Terra/Luna pricing rows

The registry additions in this PR exposed three new Kiro model ids
without matching pricing rows, tripping the catalog invariant that
every Kiro registry model must resolve a non-zero pricing row
(tests/unit/catalog-updates-v3x.test.ts) — the models would have
billed at $0.00.

Reuses the shared GPT_5_6_{SOL,TERRA,LUNA}_PRICING tiers already used
by the codex and openai aliases.

---------

Co-authored-by: Edison42 <gn00742754@gmail.com>

changelog.d/features/7209-kiro-gpt56-family.md

@@ -0,0 +1 @@
+- **feat(kiro):** register the GPT-5.6 Sol/Terra/Luna model family (272k context window). (thanks @SemonCat)

open-sse/config/providers/registry/kiro/index.ts

@@ -46,5 +46,26 @@ export const kiroProvider: RegistryEntry = {
     { id: "minimax-m2.1", name: "MiniMax M2.1" },
     { id: "glm-5", name: "GLM-5" },
     { id: "qwen3-coder-next", name: "Qwen3 Coder Next" },
+    // Kiro's first OpenAI-family models (kiro.dev/changelog/models, 2026-07-14):
+    // three tiers — Sol (flagship), Terra (balanced mid-tier), Luna (fastest/
+    // cheapest) — all sharing the announced 272k context window.
+    {
+      id: "gpt-5.6-sol",
+      name: "GPT-5.6 Sol",
+      contextLength: 272000,
+      maxOutputTokens: 128000,
+    },
+    {
+      id: "gpt-5.6-terra",
+      name: "GPT-5.6 Terra",
+      contextLength: 272000,
+      maxOutputTokens: 128000,
+    },
+    {
+      id: "gpt-5.6-luna",
+      name: "GPT-5.6 Luna",
+      contextLength: 272000,
+      maxOutputTokens: 128000,
+    },
   ],
 };

src/shared/constants/pricing/oauth-subscriptions.ts

@@ -592,5 +592,10 @@ export const DEFAULT_PRICING_OAUTH = {
       reasoning: 15.0,
       cache_creation: 3.0,
     },
+    // Kiro's GPT-5.6 family (kiro.dev/changelog/models, 2026-07-14) — same
+    // per-tier rates the codex/openai aliases already bill at.
+    "gpt-5.6-sol": GPT_5_6_SOL_PRICING,
+    "gpt-5.6-terra": GPT_5_6_TERRA_PRICING,
+    "gpt-5.6-luna": GPT_5_6_LUNA_PRICING,
   },
 };

tests/unit/kiro-catalog-real-models.test.ts

@@ -29,6 +29,11 @@ const REAL_KIRO_IDS = [
   "minimax-m2.5", // proven 200
   "minimax-m2.1", // proven 200
   "qwen3-coder-next", // proven 200
+  // Kiro's first OpenAI-family models, per kiro.dev/changelog/models
+  // (2026-07-14) — not yet independently live-VPS-verified like the ids above.
+  "gpt-5.6-sol",
+  "gpt-5.6-terra",
+  "gpt-5.6-luna",
 ];
 
 test("kiro registry exposes no fabricated model ids", () => {

tests/unit/kiro-gpt56-family-registration.test.ts

@@ -0,0 +1,39 @@
+import test from "node:test";
+import assert from "node:assert/strict";
+
+import { REGISTRY } from "@omniroute/open-sse/config/providers/index.ts";
+
+const { getResolvedModelCapabilities } = await import("../../src/lib/modelCapabilities.ts");
+
+// Kiro's first OpenAI-family models, announced 2026-07-14
+// (kiro.dev/changelog/models): GPT-5.6 Sol / Terra / Luna, all sharing a
+// 272k context window and a 128k max-output budget on the Kiro backend.
+const GPT_5_6_KIRO_MODELS = ["gpt-5.6-sol", "gpt-5.6-terra", "gpt-5.6-luna"] as const;
+
+test("kiro registry exposes the GPT-5.6 Sol/Terra/Luna model ids", () => {
+  const ids = new Set((REGISTRY.kiro?.models || []).map((m) => m.id));
+  for (const id of GPT_5_6_KIRO_MODELS) {
+    assert.ok(ids.has(id), `kiro registry must expose "${id}"`);
+  }
+});
+
+test("kiro GPT-5.6 models resolve the announced 272k context window", () => {
+  for (const model of GPT_5_6_KIRO_MODELS) {
+    const caps = getResolvedModelCapabilities({ provider: "kiro", model });
+    assert.equal(caps.contextWindow, 272000, `${model} must resolve a 272k context window`);
+  }
+});
+
+test("kiro GPT-5.6 models resolve a 128k max output budget", () => {
+  for (const model of GPT_5_6_KIRO_MODELS) {
+    const caps = getResolvedModelCapabilities({ provider: "kiro", model });
+    assert.equal(caps.maxOutputTokens, 128000, `${model} must resolve a 128k max output`);
+  }
+});
+
+test("kiro GPT-5.6 models resolve through the 'kr' provider alias too", () => {
+  for (const model of GPT_5_6_KIRO_MODELS) {
+    const caps = getResolvedModelCapabilities({ provider: "kr", model });
+    assert.equal(caps.contextWindow, 272000, `${model} must resolve via the 'kr' alias`);
+  }
+});