fix: strip antigravity/ prefix from model names sent to upstream API + sync package-lock.json

CHANGELOG.md

@@ -7,6 +7,19 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ---
 
+## [1.4.7] — 2026-02-25
+
+> ### 🐛 Bugfix — Antigravity Model Prefix & Version Sync
+>
+> Fixes model name sent to Antigravity upstream API containing `antigravity/` prefix, causing 400 errors for non-opus models. Also syncs package-lock.json version.
+
+### 🐛 Bug Fixes
+
+- **Antigravity Model Prefix Stripping** — Model names sent to the Antigravity upstream API (Google Cloud Code) now have any `provider/` prefix defensively stripped. Previously, models like `antigravity/gemini-3-flash` were sent with the prefix intact, causing 400 errors from the upstream API. Only `claude-opus-4-6-thinking` worked because its routing path differed. Fix applied in 3 locations: `antigravity.ts` executor, and both `wrapInCloudCodeEnvelope` and `wrapInCloudCodeEnvelopeForClaude` in the translator
+- **Package-lock.json Version Sync** — Fixed `package-lock.json` being stuck at `1.4.3` while `package.json` was at `1.4.6`, which prevented npm from publishing the correct version and caused the VPS deploy to stay on the old version
+
+---
+
 ## [1.4.6] — 2026-02-25
 
 > ### ✨ Community Release — Security Fix, Multi-Platform Docker, Model Updates & Plus Tier
@@ -618,6 +631,7 @@ New environment variables:
 
 ---
 
+[1.4.7]: https://github.com/diegosouzapw/OmniRoute/releases/tag/v1.4.7
 [1.4.6]: https://github.com/diegosouzapw/OmniRoute/releases/tag/v1.4.6
 [1.4.5]: https://github.com/diegosouzapw/OmniRoute/releases/tag/v1.4.5
 [1.4.4]: https://github.com/diegosouzapw/OmniRoute/releases/tag/v1.4.4

open-sse/executors/antigravity.ts

@@ -4,6 +4,15 @@ import { PROVIDERS, OAUTH_ENDPOINTS, HTTP_STATUS } from "../config/constants.ts"
 
 const MAX_RETRY_AFTER_MS = 10000;
 
+/**
+ * Strip any provider prefix (e.g. "antigravity/model" → "model").
+ * Ensures the model name sent to the upstream API never contains a routing prefix.
+ */
+function cleanModelName(model: string): string {
+  if (!model) return model;
+  return model.includes("/") ? model.split("/").pop()! : model;
+}
+
 export class AntigravityExecutor extends BaseExecutor {
   constructor() {
     super("antigravity", PROVIDERS.antigravity);
@@ -60,10 +69,12 @@ export class AntigravityExecutor extends BaseExecutor {
           : body.request?.toolConfig,
     };
 
+    const upstreamModel = cleanModelName(model);
+
     return {
       ...body,
       project: projectId,
-      model: model,
+      model: upstreamModel,
       userAgent: "antigravity",
       requestType: "agent",
       requestId: `agent-${crypto.randomUUID()}`,

open-sse/translator/request/openai-to-gemini.ts

@@ -271,9 +271,11 @@ export function openaiToGeminiCLIRequest(model, body, stream) {
 function wrapInCloudCodeEnvelope(model, geminiCLI, credentials = null, isAntigravity = false) {
   const projectId = credentials?.projectId || generateProjectId();
 
+  const cleanModel = model.includes("/") ? model.split("/").pop()! : model;
+
   const envelope: Record<string, any> = {
     project: projectId,
-    model: model,
+    model: cleanModel,
     userAgent: isAntigravity ? "antigravity" : "gemini-cli",
     requestId: isAntigravity ? `agent-${generateUUID()}` : generateRequestId(),
     request: {
@@ -315,9 +317,11 @@ function wrapInCloudCodeEnvelope(model, geminiCLI, credentials = null, isAntigra
 function wrapInCloudCodeEnvelopeForClaude(model, claudeRequest, credentials = null) {
   const projectId = credentials?.projectId || generateProjectId();
 
+  const cleanModel = model.includes("/") ? model.split("/").pop()! : model;
+
   const envelope: Record<string, any> = {
     project: projectId,
-    model: model,
+    model: cleanModel,
     userAgent: "antigravity",
     requestId: `agent-${generateUUID()}`,
     requestType: "agent",

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "omniroute",
-  "version": "1.4.3",
+  "version": "1.4.7",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "omniroute",
-      "version": "1.4.3",
+      "version": "1.4.7",
       "license": "MIT",
       "workspaces": [
         "open-sse"

package.json

@@ -1,6 +1,6 @@
 {
   "name": "omniroute",
-  "version": "1.4.6",
+  "version": "1.4.7",
   "description": "Smart AI Router with auto fallback — route to FREE & cheap models, zero downtime. Works with Cursor, Cline, Claude Desktop, Codex, and any OpenAI-compatible tool.",
   "type": "module",
   "bin": {