feat: Featherless provider

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -25,6 +25,7 @@ body:
         - AWS Bedrock
         - Chutes AI
         - DeepSeek
+        - Featherless AI
         - Fireworks AI
         - Glama
         - Google Gemini

packages/types/src/global-settings.ts

@@ -196,6 +196,7 @@ export const SECRET_STATE_KEYS = [
 	"sambaNovaApiKey",
 	"zaiApiKey",
 	"fireworksApiKey",
+	"featherlessApiKey",
 	"ioIntelligenceApiKey",
 ] as const satisfies readonly (keyof ProviderSettings)[]
 export type SecretState = Pick<ProviderSettings, (typeof SECRET_STATE_KEYS)[number]>

packages/types/src/provider-settings.ts

@@ -46,6 +46,7 @@ export const providerNames = [
 	"sambanova",
 	"zai",
 	"fireworks",
+	"featherless",
 	"io-intelligence",
 	"roo",
 ] as const
@@ -284,6 +285,10 @@ const fireworksSchema = apiModelIdProviderModelSchema.extend({
 	fireworksApiKey: z.string().optional(),
 })
 
+const featherlessSchema = apiModelIdProviderModelSchema.extend({
+	featherlessApiKey: z.string().optional(),
+})
+
 const ioIntelligenceSchema = apiModelIdProviderModelSchema.extend({
 	ioIntelligenceModelId: z.string().optional(),
 	ioIntelligenceApiKey: z.string().optional(),
@@ -328,6 +333,7 @@ export const providerSettingsSchemaDiscriminated = z.discriminatedUnion("apiProv
 	sambaNovaSchema.merge(z.object({ apiProvider: z.literal("sambanova") })),
 	zaiSchema.merge(z.object({ apiProvider: z.literal("zai") })),
 	fireworksSchema.merge(z.object({ apiProvider: z.literal("fireworks") })),
+	featherlessSchema.merge(z.object({ apiProvider: z.literal("featherless") })),
 	ioIntelligenceSchema.merge(z.object({ apiProvider: z.literal("io-intelligence") })),
 	rooSchema.merge(z.object({ apiProvider: z.literal("roo") })),
 	defaultSchema,
@@ -365,6 +371,7 @@ export const providerSettingsSchema = z.object({
 	...sambaNovaSchema.shape,
 	...zaiSchema.shape,
 	...fireworksSchema.shape,
+	...featherlessSchema.shape,
 	...ioIntelligenceSchema.shape,
 	...rooSchema.shape,
 	...codebaseIndexProviderSchema.shape,

packages/types/src/providers/featherless.ts

@@ -0,0 +1,58 @@
+import type { ModelInfo } from "../model.js"
+
+export type FeatherlessModelId =
+	| "deepseek-ai/DeepSeek-V3-0324"
+	| "deepseek-ai/DeepSeek-R1-0528"
+	| "moonshotai/Kimi-K2-Instruct"
+	| "openai/gpt-oss-120b"
+	| "Qwen/Qwen3-Coder-480B-A35B-Instruct"
+
+export const featherlessModels = {
+	"deepseek-ai/DeepSeek-V3-0324": {
+		maxTokens: 4096,
+		contextWindow: 32678,
+		supportsImages: false,
+		supportsPromptCache: false,
+		inputPrice: 0,
+		outputPrice: 0,
+		description: "DeepSeek V3 0324 model.",
+	},
+	"deepseek-ai/DeepSeek-R1-0528": {
+		maxTokens: 4096,
+		contextWindow: 32678,
+		supportsImages: false,
+		supportsPromptCache: false,
+		inputPrice: 0,
+		outputPrice: 0,
+		description: "DeepSeek R1 0528 model.",
+	},
+	"moonshotai/Kimi-K2-Instruct": {
+		maxTokens: 4096,
+		contextWindow: 32678,
+		supportsImages: false,
+		supportsPromptCache: false,
+		inputPrice: 0,
+		outputPrice: 0,
+		description: "Kimi K2 Instruct model.",
+	},
+	"openai/gpt-oss-120b": {
+		maxTokens: 4096,
+		contextWindow: 32678,
+		supportsImages: false,
+		supportsPromptCache: false,
+		inputPrice: 0,
+		outputPrice: 0,
+		description: "GPT-OSS 120B model.",
+	},
+	"Qwen/Qwen3-Coder-480B-A35B-Instruct": {
+		maxTokens: 4096,
+		contextWindow: 32678,
+		supportsImages: false,
+		supportsPromptCache: false,
+		inputPrice: 0,
+		outputPrice: 0,
+		description: "Qwen3 Coder 480B A35B Instruct model.",
+	},
+} as const satisfies Record<string, ModelInfo>
+
+export const featherlessDefaultModelId: FeatherlessModelId = "deepseek-ai/DeepSeek-R1-0528"

packages/types/src/providers/index.ts

@@ -26,3 +26,4 @@ export * from "./doubao.js"
 export * from "./zai.js"
 export * from "./fireworks.js"
 export * from "./roo.js"
+export * from "./featherless.js"

src/api/index.ts

@@ -36,6 +36,7 @@ import {
 	ZAiHandler,
 	FireworksHandler,
 	RooHandler,
+	FeatherlessHandler,
 } from "./providers"
 import { NativeOllamaHandler } from "./providers/native-ollama"
 
@@ -143,6 +144,8 @@ export function buildApiHandler(configuration: ProviderSettings): ApiHandler {
 			return new IOIntelligenceHandler(options)
 		case "roo":
 			return new RooHandler(options)
+		case "featherless":
+			return new FeatherlessHandler(options)
 		default:
 			apiProvider satisfies "gemini-cli" | undefined
 			return new AnthropicHandler(options)