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Merged
razmser merged 2 commits into from
Jun 16, 2026
Merged

Keep only known providers #3

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5ee9c4f
chore: update models data in tests
razmser Jun 11, 2026
6432ae4
feat: keep only known providers
razmser Jun 16, 2026
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22 changes: 14 additions & 8 deletions src/models.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,16 @@ const DEFAULT_COST = {
cache_write: 0,
};

type Protocol = "openai" | "anthropic";

// Providers we explicitly know how to route. Models from any provider not
// listed here are skipped. Adding a provider is a one-line change here.
const PROVIDERS = new Map<string, { protocol: Protocol }>([
["openai", { protocol: "openai" }],
["anthropic", { protocol: "anthropic" }],
["deepseek", { protocol: "anthropic" }],
]);

type ModelDevEntry = {
id?: string;
name?: string;
Expand Down Expand Up @@ -97,10 +107,9 @@ export type ConfigModel = {

function buildLookupMap(modelsDevData: ModelsDevData) {
const byFullId = new Map<string, ModelDevEntry>();
const allowedProviders = new Set(["openai", "anthropic", "deepseek"]);

for (const [provider, providerData] of Object.entries(modelsDevData)) {
if (!allowedProviders.has(provider) || !providerData?.models) continue;
if (!PROVIDERS.has(provider) || !providerData?.models) continue;
for (const [modelId, entry] of Object.entries(providerData.models)) {
byFullId.set(`${provider}/${modelId}`, entry);
}
Expand Down Expand Up @@ -156,10 +165,6 @@ export async function fetchHubModels(): Promise<HubResponse> {
return res.json() as Promise<HubResponse>;
}

function usesAnthropicApi(provider: string): boolean {
return provider === "anthropic" || provider === "deepseek";
}

export function buildConfigModels(
modelsDevData: ModelsDevData,
hubData: HubResponse,
Expand All @@ -169,9 +174,10 @@ export function buildConfigModels(
const warnings: string[] = [];

for (const [provider, providerData] of Object.entries(hubData.providers)) {
if (!providerData?.models) continue;
const known = PROVIDERS.get(provider);
if (!known || !providerData?.models) continue;

const anthropic = usesAnthropicApi(provider);
const anthropic = known.protocol === "anthropic";

for (const [modelId, hubModel] of Object.entries(providerData.models)) {
const entry = resolveEntry(provider, modelId, byFullId);
Expand Down
28 changes: 14 additions & 14 deletions test/index.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -31,11 +31,11 @@ const MODELS_DEV_DATA = {
name: "GPT-5.4 Nano",
limit: { context: 400000, output: 128000 },
attachment: true,
reasoning: false,
temperature: true,
reasoning: true,
temperature: false,
tool_call: true,
modalities: {
input: ["text", "image", "audio"],
input: ["text", "image"],
output: ["text"],
},
cost: { input: 0.2, output: 1.25, cache_read: 0.02, cache_write: 0 },
Expand Down Expand Up @@ -70,8 +70,8 @@ const MODELS_DEV_DATA = {
"deepseek-v4-pro": {
id: "deepseek-v4-pro",
name: "DeepSeek V4 Pro",
limit: { context: 128000, output: 32000 },
attachment: true,
limit: { context: 1000000, output: 384000 },
attachment: false,
reasoning: true,
temperature: true,
tool_call: true,
Expand All @@ -84,8 +84,8 @@ const MODELS_DEV_DATA = {
"deepseek-v4-flash": {
id: "deepseek-v4-flash",
name: "DeepSeek V4 Flash",
limit: { context: 128000, output: 32000 },
attachment: true,
limit: { context: 1000000, output: 384000 },
attachment: false,
reasoning: true,
temperature: true,
tool_call: true,
Expand Down Expand Up @@ -182,10 +182,10 @@ describe("config hook", () => {
npm: "@ai-sdk/openai",
},
attachment: true,
reasoning: false,
temperature: true,
reasoning: true,
temperature: false,
tool_call: true,
modalities: { input: ["text", "image", "audio"], output: ["text"] },
modalities: { input: ["text", "image"], output: ["text"] },
cost: { input: 0.2, output: 1.25, cache_read: 0.02, cache_write: 0 },
limit: { context: 400000, output: 128000 },
interleaved: true,
Expand Down Expand Up @@ -220,13 +220,13 @@ describe("config hook", () => {
api: "https://hub.coreinfra.ai/claude/api/v1",
npm: "@ai-sdk/anthropic",
},
attachment: true,
attachment: false,
reasoning: true,
temperature: true,
tool_call: true,
modalities: { input: ["text"], output: ["text"] },
cost: { input: 1.5, output: 6, cache_read: 0.15, cache_write: 1.5 },
limit: { context: 128000, output: 32000 },
limit: { context: 1000000, output: 384000 },
interleaved: { field: "reasoning_content" },
headers: {
"anthropic-beta":
Expand All @@ -241,13 +241,13 @@ describe("config hook", () => {
api: "https://hub.coreinfra.ai/claude/api/v1",
npm: "@ai-sdk/anthropic",
},
attachment: true,
attachment: false,
reasoning: true,
temperature: true,
tool_call: true,
modalities: { input: ["text"], output: ["text"] },
cost: { input: 0.15, output: 0.6, cache_read: 0.015, cache_write: 0.15 },
limit: { context: 128000, output: 32000 },
limit: { context: 1000000, output: 384000 },
interleaved: { field: "reasoning_content" },
headers: {
"anthropic-beta":
Expand Down
89 changes: 59 additions & 30 deletions test/models.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -18,11 +18,11 @@ const MODELS_DEV_FIXTURE = {
name: "GPT-5.4 Nano",
limit: { context: 400000, output: 128000 },
attachment: true,
reasoning: false,
temperature: true,
reasoning: true,
temperature: false,
tool_call: true,
modalities: {
input: ["text", "image", "audio", "video", "pdf"],
input: ["text", "image"],
output: ["text"],
},
cost: { input: 0.2, output: 1.25, cache_read: 0.02, cache_write: 0 },
Expand Down Expand Up @@ -57,8 +57,8 @@ const MODELS_DEV_FIXTURE = {
"deepseek-v4-pro": {
id: "deepseek-v4-pro",
name: "DeepSeek V4 Pro",
limit: { context: 128000, output: 32000 },
attachment: true,
limit: { context: 1000000, output: 384000 },
attachment: false,
reasoning: true,
temperature: true,
tool_call: true,
Expand All @@ -71,8 +71,8 @@ const MODELS_DEV_FIXTURE = {
"deepseek-v4-flash": {
id: "deepseek-v4-flash",
name: "DeepSeek V4 Flash",
limit: { context: 128000, output: 32000 },
attachment: true,
limit: { context: 1000000, output: 384000 },
attachment: false,
reasoning: true,
temperature: true,
tool_call: true,
Expand Down Expand Up @@ -131,11 +131,11 @@ describe("buildConfigModels", () => {
npm: "@ai-sdk/openai",
},
attachment: true,
reasoning: false,
temperature: true,
reasoning: true,
temperature: false,
tool_call: true,
modalities: {
input: ["text", "image", "audio", "video", "pdf"],
input: ["text", "image"],
output: ["text"],
},
cost: { input: 0.2, output: 1.25, cache_read: 0.02, cache_write: 0 },
Expand Down Expand Up @@ -177,7 +177,7 @@ describe("buildConfigModels", () => {
api: "https://hub.coreinfra.ai/claude/api/v1",
npm: "@ai-sdk/anthropic",
},
attachment: true,
attachment: false,
reasoning: true,
temperature: true,
tool_call: true,
Expand All @@ -186,7 +186,7 @@ describe("buildConfigModels", () => {
output: ["text"],
},
cost: { input: 1.5, output: 6, cache_read: 0.15, cache_write: 1.5 },
limit: { context: 128000, output: 32000 },
limit: { context: 1000000, output: 384000 },
interleaved: { field: "reasoning_content" },
headers: {
"anthropic-beta":
Expand All @@ -202,7 +202,7 @@ describe("buildConfigModels", () => {
api: "https://hub.coreinfra.ai/claude/api/v1",
npm: "@ai-sdk/anthropic",
},
attachment: true,
attachment: false,
reasoning: true,
temperature: true,
tool_call: true,
Expand All @@ -211,7 +211,7 @@ describe("buildConfigModels", () => {
output: ["text"],
},
cost: { input: 0.15, output: 0.6, cache_read: 0.015, cache_write: 0.15 },
limit: { context: 128000, output: 32000 },
limit: { context: 1000000, output: 384000 },
interleaved: { field: "reasoning_content" },
headers: {
"anthropic-beta":
Expand Down Expand Up @@ -290,36 +290,65 @@ describe("buildConfigModels", () => {
expect(models["shared-id"].limit.context).toBe(100000);
});

it("does not resolve from non-allowed providers in models.dev", () => {
const modelsDevData = {
"provider-a": {
models: {
"some-model": {
id: "some-model",
name: "Should Not Match",
cost: { input: 99 },
it("skips unknown hub providers silently", () => {
const hubData = {
providers: {
google: {
models: {
"gemini-3-pro": { display_name: "Gemini 3 Pro" },
},
},
},
};

const { models, warnings } = buildConfigModels(MODELS_DEV_FIXTURE, hubData);

expect(models).toEqual({});
expect(warnings).toEqual([]);
});

it("skips providers named like inherited object properties", () => {
const hubData = {
providers: {
toString: {
models: {
"evil-model": { display_name: "Evil Model" },
},
},
constructor: {
models: {
"ctor-model": { display_name: "Ctor Model" },
},
},
},
};

const { models, warnings } = buildConfigModels(MODELS_DEV_FIXTURE, hubData);

expect(models).toEqual({});
expect(warnings).toEqual([]);
});

it("registers only known providers when hub mixes known and unknown", () => {
const hubData = {
providers: {
"provider-a": {
openai: {
models: {
"gpt-5.4-nano": { display_name: "GPT-5.4 Nano" },
},
},
google: {
models: {
"some-model": { display_name: "Hub Model" },
"gemini-3-pro": { display_name: "Gemini 3 Pro" },
},
},
},
};

const { models, warnings } = buildConfigModels(modelsDevData, hubData);
const { models, warnings } = buildConfigModels(MODELS_DEV_FIXTURE, hubData);

expect(warnings).toEqual([
"provider-a/some-model not found in models.dev — using defaults",
]);
expect(models["some-model"].name).toBe("Hub Model");
expect(models["some-model"].cost.input).toBe(0);
expect(Object.keys(models)).toEqual(["gpt-5.4-nano"]);
expect(warnings).toEqual([]);
});

it("uses hub display_name as fallback when models.dev entry has no name", () => {
Expand Down