feat: add Deepseek v3.1 to Fireworks AI provider (#7375)

Co-authored-by: Roo Code <[email protected]>

Author: roomote[bot]

packages/types/src/providers/fireworks.ts

@@ -6,6 +6,7 @@ export type FireworksModelId =
 	| "accounts/fireworks/models/qwen3-coder-480b-a35b-instruct"
 	| "accounts/fireworks/models/deepseek-r1-0528"
 	| "accounts/fireworks/models/deepseek-v3"
+	| "accounts/fireworks/models/deepseek-v3p1"
 	| "accounts/fireworks/models/glm-4p5"
 	| "accounts/fireworks/models/glm-4p5-air"
 	| "accounts/fireworks/models/gpt-oss-20b"
@@ -62,6 +63,16 @@ export const fireworksModels = {
 		description:
 			"A strong Mixture-of-Experts (MoE) language model with 671B total parameters with 37B activated for each token from Deepseek. Note that fine-tuning for this model is only available through contacting fireworks at https://fireworks.ai/company/contact-us.",
 	},
+	"accounts/fireworks/models/deepseek-v3p1": {
+		maxTokens: 16384,
+		contextWindow: 163840,
+		supportsImages: false,
+		supportsPromptCache: false,
+		inputPrice: 0.56,
+		outputPrice: 1.68,
+		description:
+			"DeepSeek v3.1 is an improved version of the v3 model with enhanced performance, better reasoning capabilities, and improved code generation. This Mixture-of-Experts (MoE) model maintains the same 671B total parameters with 37B activated per token.",
+	},
 	"accounts/fireworks/models/glm-4p5": {
 		maxTokens: 16384,
 		contextWindow: 128000,

src/api/providers/__tests__/fireworks.spec.ts

@@ -179,6 +179,27 @@ describe("FireworksHandler", () => {
 		)
 	})
 
+	it("should return DeepSeek V3.1 model with correct configuration", () => {
+		const testModelId: FireworksModelId = "accounts/fireworks/models/deepseek-v3p1"
+		const handlerWithModel = new FireworksHandler({
+			apiModelId: testModelId,
+			fireworksApiKey: "test-fireworks-api-key",
+		})
+		const model = handlerWithModel.getModel()
+		expect(model.id).toBe(testModelId)
+		expect(model.info).toEqual(
+			expect.objectContaining({
+				maxTokens: 16384,
+				contextWindow: 163840,
+				supportsImages: false,
+				supportsPromptCache: false,
+				inputPrice: 0.56,
+				outputPrice: 1.68,
+				description: expect.stringContaining("DeepSeek v3.1 is an improved version"),
+			}),
+		)
+	})
+
 	it("should return GLM-4.5 model with correct configuration", () => {
 		const testModelId: FireworksModelId = "accounts/fireworks/models/glm-4p5"
 		const handlerWithModel = new FireworksHandler({