Add Gemini Flash 2.0 Experimental (#1563)

.changeset/kind-bananas-shave.md

+---
+"llamaindex": patch
+---
+
+Add Gemini 2.0 Flash Experimental

packages/llamaindex/src/llm/gemini/base.ts

@@ -53,6 +53,7 @@ export const GEMINI_MODEL_INFO_MAP: Record<GEMINI_MODEL, GeminiModelInfo> = {
   [GEMINI_MODEL.GEMINI_PRO_1_5_FLASH]: { contextWindow: 10 ** 6 },
   [GEMINI_MODEL.GEMINI_PRO_1_5_LATEST]: { contextWindow: 2 * 10 ** 6 },
   [GEMINI_MODEL.GEMINI_PRO_1_5_FLASH_LATEST]: { contextWindow: 10 ** 6 },
+  [GEMINI_MODEL.GEMINI_2_0_FLASH_EXPERIMENTAL]: { contextWindow: 10 ** 6 },
 };
 
 const SUPPORT_TOOL_CALL_MODELS: GEMINI_MODEL[] = [
@@ -66,6 +67,7 @@ const SUPPORT_TOOL_CALL_MODELS: GEMINI_MODEL[] = [
   GEMINI_MODEL.GEMINI_PRO_FLASH_LATEST,
   GEMINI_MODEL.GEMINI_PRO_1_5_LATEST,
   GEMINI_MODEL.GEMINI_PRO_1_5_FLASH_LATEST,
+  GEMINI_MODEL.GEMINI_2_0_FLASH_EXPERIMENTAL,
 ];
 
 const DEFAULT_GEMINI_PARAMS = {

packages/llamaindex/src/llm/gemini/types.ts

@@ -64,6 +64,7 @@ export enum GEMINI_MODEL {
   // Note: should be switched to -latest suffix when google supports it
   GEMINI_PRO_1_5_LATEST = "gemini-1.5-pro-002",
   GEMINI_PRO_1_5_FLASH_LATEST = "gemini-1.5-flash-002",
+  GEMINI_2_0_FLASH_EXPERIMENTAL = "gemini-2.0-flash-exp",
 }
 
 export interface GeminiModelInfo {