diff --git a/packages/types/src/providers/roo.ts b/packages/types/src/providers/roo.ts
index 5bba18e2983..01fae43cd57 100644
--- a/packages/types/src/providers/roo.ts
+++ b/packages/types/src/providers/roo.ts
@@ -1,6 +1,10 @@
 import type { ModelInfo } from "../model.js"
 
-export type RooModelId = "xai/grok-code-fast-1" | "roo/code-supernova"
+export type RooModelId =
+	| "xai/grok-code-fast-1"
+	| "roo/code-supernova"
+	| "xai/grok-4-fast"
+	| "deepseek/deepseek-chat-v3.1"
 
 export const rooDefaultModelId: RooModelId = "xai/grok-code-fast-1"
 
@@ -25,4 +29,24 @@ export const rooModels = {
 		description:
 			"A versatile agentic coding stealth model that supports image inputs, accessible for free through Roo Code Cloud for a limited time. (Note: the free prompts and completions are logged by the model provider and used to improve the model.)",
 	},
+	"xai/grok-4-fast": {
+		maxTokens: 30_000,
+		contextWindow: 2_000_000,
+		supportsImages: false,
+		supportsPromptCache: false,
+		inputPrice: 0,
+		outputPrice: 0,
+		description:
+			"Grok 4 Fast is xAI's latest multimodal model with SOTA cost-efficiency and a 2M token context window. (Note: prompts and completions are logged by xAI and used to improve the model.)",
+	},
+	"deepseek/deepseek-chat-v3.1": {
+		maxTokens: 16_384,
+		contextWindow: 163_840,
+		supportsImages: false,
+		supportsPromptCache: false,
+		inputPrice: 0,
+		outputPrice: 0,
+		description:
+			"DeepSeek-V3.1 is a large hybrid reasoning model (671B parameters, 37B active). It extends the DeepSeek-V3 base with a two-phase long-context training process, reaching up to 128K tokens, and uses FP8 microscaling for efficient inference.",
+	},
 } as const satisfies Record<string, ModelInfo>