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feat(ai): add Gemini 3.1 Pro support for google-antigravity provider #1691

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feat(ai): add Gemini 3.1 Pro support for google-antigravity provider #1691

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24 changes: 24 additions & 0 deletions packages/ai/scripts/generate-models.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -1031,6 +1031,30 @@ async function generateModels() {
// Uses sandbox endpoint and different OAuth credentials for access to additional models
const ANTIGRAVITY_ENDPOINT = "https://daily-cloudcode-pa.sandbox.googleapis.com";
const antigravityModels: Model<"google-gemini-cli">[] = [
{
id: "gemini-3.1-pro-high",
name: "Gemini 3.1 Pro High (Antigravity)",
api: "google-gemini-cli",
provider: "google-antigravity",
baseUrl: ANTIGRAVITY_ENDPOINT,
reasoning: true,
input: ["text", "image"],
cost: { input: 2, output: 12, cacheRead: 0.2, cacheWrite: 2.375 },
contextWindow: 1048576,
maxTokens: 65535,
},
{
id: "gemini-3.1-pro-low",
name: "Gemini 3.1 Pro Low (Antigravity)",
api: "google-gemini-cli",
provider: "google-antigravity",
baseUrl: ANTIGRAVITY_ENDPOINT,
reasoning: true,
input: ["text", "image"],
cost: { input: 2, output: 12, cacheRead: 0.2, cacheWrite: 2.375 },
contextWindow: 1048576,
maxTokens: 65535,
},
{
id: "gemini-3-pro-high",
name: "Gemini 3 Pro High (Antigravity)",
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34 changes: 34 additions & 0 deletions packages/ai/src/models.generated.ts
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Expand Up @@ -3394,6 +3394,40 @@ export const MODELS = {
contextWindow: 1048576,
maxTokens: 65535,
} satisfies Model<"google-gemini-cli">,
"gemini-3.1-pro-high": {
id: "gemini-3.1-pro-high",
name: "Gemini 3.1 Pro High (Antigravity)",
api: "google-gemini-cli",
provider: "google-antigravity",
baseUrl: "https://daily-cloudcode-pa.sandbox.googleapis.com",
reasoning: true,
input: ["text", "image"],
cost: {
input: 2,
output: 12,
cacheRead: 0.2,
cacheWrite: 2.375,
},
contextWindow: 1048576,
maxTokens: 65535,
} satisfies Model<"google-gemini-cli">,
"gemini-3.1-pro-low": {
id: "gemini-3.1-pro-low",
name: "Gemini 3.1 Pro Low (Antigravity)",
api: "google-gemini-cli",
provider: "google-antigravity",
baseUrl: "https://daily-cloudcode-pa.sandbox.googleapis.com",
reasoning: true,
input: ["text", "image"],
cost: {
input: 2,
output: 12,
cacheRead: 0.2,
cacheWrite: 2.375,
},
contextWindow: 1048576,
maxTokens: 65535,
} satisfies Model<"google-gemini-cli">,
"gpt-oss-120b-medium": {
id: "gpt-oss-120b-medium",
name: "GPT-OSS 120B Medium (Antigravity)",
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2 changes: 1 addition & 1 deletion packages/ai/src/providers/google-gemini-cli.ts
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Expand Up @@ -72,7 +72,7 @@ const GEMINI_CLI_HEADERS = {
};

// Headers for Antigravity (sandbox endpoint) - requires specific User-Agent
const DEFAULT_ANTIGRAVITY_VERSION = "1.15.8";
const DEFAULT_ANTIGRAVITY_VERSION = "1.18.0";

function getAntigravityHeaders() {
const version = process.env.PI_AI_ANTIGRAVITY_VERSION || DEFAULT_ANTIGRAVITY_VERSION;
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