Sync public snapshot from freebuff-private

Source: CodebuffAI/freebuff-private@d879ad7e69641d25107980706d4626d9d5e57cdd

Author: github-actions[bot]

agents/base-chat.ts

@@ -62,6 +62,7 @@ End every response by calling the suggest_followups tool with exactly 3 followup
       // budget below lands on exactly 400k. Without this Luna took
       // DEFAULT_CONTEXT_WINDOW and got a 52k budget on a million-token model.
       'openai/gpt-5.6-luna': 1_000_000,
+      'openai/gpt-5.6-luna-es': 372_000,
       'meta/muse-spark-1.2-contributor': 1_000_000,
       // Ox Alpha: 1,048,576 published, entered low for the same reason.
       'stealth/ox-alpha': 1_000_000,

bun.lock

@@ -685,6 +685,7 @@ describe('every freebuff root agent declares a prompt opening', () => {
     'base2-free-glm': BASE2,
     // God-only Kimi K3 test root; createBase2('free', …) like its siblings.
     'base2-free-kimi-k3-eco': BASE2,
+    'base2-free-luna-es': BASE2,
     // Limited-offer trial root; createBase2('free', …) like its siblings.
     'base2-free-fable': BASE2,
     // Extended-context `-max` roots; createBase2('free', …) like their

common/src/__tests__/free-agents.test.ts

@@ -16,6 +16,7 @@ import {
   FREEBUFF_DEEPSEEK_V4_PRO_MAX_MODEL_ID,
   FREEBUFF_GPT_5_6_LUNA_MAX_MODEL_ID,
   FREEBUFF_KIMI_K3_ECO_MODEL_ID,
+  FREEBUFF_GPT_5_6_LUNA_ES_MODEL_ID,
   FREEBUFF_MINIMAX_M3_MODEL_ID,
   FREEBUFF_MUSE_SPARK_12_CONTRIBUTOR_MODEL_ID,
   FREEBUFF_OX_ALPHA_MODEL_ID,
@@ -124,6 +125,7 @@ export const FREEBUFF_WEB_BASE3_AGENT_ID_BY_MODEL: Record<string, string> = {
   [FREEBUFF_GPT_5_6_LUNA_MODEL_ID]: 'base3-free-luna',
   [FREEBUFF_GLM_V52_MODEL_ID]: 'base3-free-glm',
   [FREEBUFF_KIMI_K3_ECO_MODEL_ID]: 'base3-free-kimi-k3-eco',
+  [FREEBUFF_GPT_5_6_LUNA_ES_MODEL_ID]: 'base3-free-luna-es',
   [FREEBUFF_MUSE_SPARK_12_CONTRIBUTOR_MODEL_ID]: 'base3-free-muse-spark',
   [FREEBUFF_OX_ALPHA_MODEL_ID]: 'base3-free-ox-alpha',
 }
@@ -307,6 +309,7 @@ export const FREEBUFF_ROOT_AGENT_IDS = [
   'base2-free-luna',
   'base2-free-glm',
   'base2-free-kimi-k3-eco',
+  'base2-free-luna-es',
   // Extended-context `-max` roots. Listed here for the same reason every other
   // root is: a root absent from this list is treated as a subagent, so a
   // top-level request on one fails the hierarchy check with
@@ -353,6 +356,7 @@ export const FREEBUFF_ROOT_AGENT_IDS = [
   'base3-free-luna',
   'base3-free-glm',
   'base3-free-kimi-k3-eco',
+  'base3-free-luna-es',
   'base3-free-muse-spark',
   'base3-free-ox-alpha',
   // Freebuff CLI base3 roots. Every other id it needs is already above,
@@ -375,6 +379,7 @@ export const FREEBUFF_ROOT_AGENT_ID_BY_MODEL: Record<string, string> = {
   [FREEBUFF_DEEPSEEK_V4_FLASH_MODEL_ID]: 'base2-free-deepseek-flash',
   [FREEBUFF_GLM_V52_MODEL_ID]: 'base2-free-glm',
   [FREEBUFF_KIMI_K3_ECO_MODEL_ID]: 'base2-free-kimi-k3-eco',
+  [FREEBUFF_GPT_5_6_LUNA_ES_MODEL_ID]: 'base2-free-luna-es',
   [FREEBUFF_FABLE_5_MODEL_ID]: 'base2-free-fable',
   [FREEBUFF_MUSE_SPARK_12_CONTRIBUTOR_MODEL_ID]: 'base2-free-muse-spark',
   [FREEBUFF_OX_ALPHA_MODEL_ID]: 'base2-free-ox-alpha',
@@ -512,6 +517,12 @@ export const FREE_MODE_AGENT_MODELS: Record<string, Set<string>> = {
   'base2-free-luna': new Set([FREEBUFF_GPT_5_6_LUNA_MODEL_ID]),
   'base2-free-glm': new Set([FREEBUFF_GLM_V52_MODEL_ID]),
   'base2-free-kimi-k3-eco': new Set([FREEBUFF_KIMI_K3_ECO_MODEL_ID]),
+  // Novita's `-es` route. Pinned to the one model like every other root. It is
+  // a Codex session rather than Luna (see web/src/llm-api/novita.ts), so it is
+  // deliberately NOT reachable from `base2-free-luna` — the two must never
+  // share a root, or a Luna request could land on Codex.
+  'base2-free-luna-es': new Set([FREEBUFF_GPT_5_6_LUNA_ES_MODEL_ID]),
+  'base3-free-luna-es': new Set([FREEBUFF_GPT_5_6_LUNA_ES_MODEL_ID]),
   // Extended-context roots for the provisioned `-max` tiers. Pinned one model
   // each like every other root, and not in any client catalog: these are
   // provisioned per-account rather than rendered from a picker, so a client

common/src/constants/free-agents.ts

@@ -191,6 +191,23 @@ export const FREEBUFF_GLM_V52_MODEL_ID = 'z-ai/glm-5.2'
  *  (agents/constants.ts) is this same model id, so keying either off the model
  *  alone would change Codebuff's paid lite mode as a side effect. */
 export const FREEBUFF_GPT_5_6_LUNA_MODEL_ID = 'openai/gpt-5.6-luna'
+/**
+ * The Novita `-es` route. GOD-ONLY, and NOT a cheaper GPT-5.6 Luna.
+ *
+ * Its own id rather than a second lane under Luna's, because it is a different
+ * model: measured 2026-08-21 it answers "I'm Codex, an OpenAI coding agent
+ * based on GPT-5", volunteers Codex's internal tool names, and carries a fixed
+ * ~4,450-token Codex system prompt we did not send. Serving that under Luna's
+ * row would be the silent substitution the DeepSeek legacy/GA split exists to
+ * prevent — and here the model says the quiet part out loud to any user who
+ * asks what it is.
+ *
+ * A SECOND ID FOR THE SAME MODEL IS NORMALLY THE BUG (see GLM's note above:
+ * an extra id is an extra door onto a quota pool). This is the opposite case —
+ * one id per distinct model, kept apart precisely so neither can be mistaken
+ * for the other. It is god-only, so it opens no pool.
+ */
+export const FREEBUFF_GPT_5_6_LUNA_ES_MODEL_ID = 'openai/gpt-5.6-luna-es'
 /** OpenRouter provider slug Luna prefers (first in `provider.order`). */
 export const FREEBUFF_GPT_5_6_LUNA_PROVIDER_ROUTE = 'openai'
 /** Price ceiling for Luna, USD per million tokens. Sent as OpenRouter's
@@ -722,6 +739,10 @@ export const FREEBUFF_MODEL_CONTEXT_WINDOWS: Record<string, number> = {
   // summarize rewrites history from the front and throws away the prompt cache
   // with it.
   [FREEBUFF_GPT_5_6_LUNA_MODEL_ID]: 1_000_000,
+  // Novita publishes 372k for the `-es` route (their /v1/models, 2026-08-21),
+  // far below Luna's own 1M — it is a Codex session, not the Luna API model.
+  // Sized from what the provider states rather than inherited from the name.
+  [FREEBUFF_GPT_5_6_LUNA_ES_MODEL_ID]: 372_000,
   // Meta publishes 1,048,576 for every Muse Spark variant. Entered as 1_000_000
   // for the same reason Luna is: it stays on the safe side of the asymmetry
   // above while remaining an honest order of magnitude, where falling through
@@ -1067,6 +1088,27 @@ const GLM_V52_MODEL = {
  * routing, billing, and the CROF_MODEL_MAP entry. If the full K3 is ever added
  * as its own row, this label has to be disambiguated at that point.
  */
+const GPT_5_6_LUNA_ES_MODEL = {
+  id: FREEBUFF_GPT_5_6_LUNA_ES_MODEL_ID,
+  // Named for what it IS. "Luna" appears nowhere: the route answers "Codex" when
+  // asked, so a row calling it Luna would be contradicted by the model itself.
+  displayName: 'Codex (test)',
+  tagline: 'Novita route — evaluation only',
+  availability: 'always',
+  // No AI-training claim either way: the supplier has no resale agreement for
+  // this route, so we have no data-use terms to pass on. `service` is the
+  // conservative reading — we are not asserting a training warning we cannot
+  // substantiate, and not asserting safety we cannot either.
+  dataUse: 'service',
+  // TRUE so it cannot fall into FREEBUFF_STANDARD_MODEL_IDS, which is derived
+  // as `WEB_ALL.filter(m => !m.premium)` — the UNMETERED pool. God-only is the
+  // gate; this flag is what stops the row becoming free inference if the gate
+  // is ever widened.
+  premium: true,
+  multimodal: false,
+  reasoningEffort: FREEBUFF_GPT_5_6_LUNA_REASONING_EFFORT,
+} as const satisfies FreebuffModelOption
+
 const KIMI_K3_ECO_MODEL = {
   id: FREEBUFF_KIMI_K3_ECO_MODEL_ID,
   displayName: 'Kimi K3',
@@ -1451,6 +1493,7 @@ export const FREEBUFF_WEB_MODELS = [
 
 export const FREEBUFF_WEB_GOD_ONLY_MODELS = [
   KIMI_K3_ECO_MODEL,
+  GPT_5_6_LUNA_ES_MODEL,
 ] as const satisfies readonly FreebuffModelOption[]
 
 export const FREEBUFF_WEB_ALL_MODELS = [

common/src/constants/freebuff-models.ts

@@ -51,6 +51,7 @@ export const SPEND_PROVIDER_IDS = [
   'meta',
   'minimax',
   'moonshot',
+  'novita',
   'openai',
   'opencode-zen',
   'openrouter',
@@ -102,6 +103,7 @@ const PROVIDER_LABELS: Partial<Record<SpendProviderId, string>> = {
   openrouter: 'OpenRouter',
   runinfra: 'RunInfra',
   siliconflow: 'SiliconFlow',
+  novita: 'Novita',
   minimax: 'MiniMax',
   canopywave: 'CanopyWave',
   xiaomi: 'Xiaomi',