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Add OpenCode Zen provider support

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Mario Zechner 2026-01-09 06:58:20 +01:00
parent 98b25baf4d
commit 97d0189eae
8 changed files with 529 additions and 1 deletions
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54
packages/ai/scripts/generate-models.ts
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@ -27,6 +27,9 @@ interface ModelsDevModel {
modalities?: {
input?: string[];
};
provider?: {
npm?: string;
};
}
const COPILOT_STATIC_HEADERS = {
@ -314,6 +317,57 @@ async function loadModelsDevData(): Promise<Model<any>[]> {
}
}
// Process OpenCode Zen models
// API mapping based on provider.npm field:
// - @ai-sdk/openai → openai-responses
// - @ai-sdk/anthropic → anthropic-messages
// - @ai-sdk/google → google-generative-ai
// - null/undefined/@ai-sdk/openai-compatible → openai-completions
if (data.opencode?.models) {
for (const [modelId, model] of Object.entries(data.opencode.models)) {
const m = model as ModelsDevModel;
if (m.tool_call !== true) continue;
const npm = m.provider?.npm;
let api: Api;
let baseUrl: string;
if (npm === "@ai-sdk/openai") {
api = "openai-responses";
baseUrl = "https://opencode.ai/zen/v1";
} else if (npm === "@ai-sdk/anthropic") {
api = "anthropic-messages";
// Anthropic SDK appends /v1/messages to baseURL
baseUrl = "https://opencode.ai/zen";
} else if (npm === "@ai-sdk/google") {
api = "google-generative-ai";
baseUrl = "https://opencode.ai/zen/v1";
} else {
// null, undefined, or @ai-sdk/openai-compatible
api = "openai-completions";
baseUrl = "https://opencode.ai/zen/v1";
}
models.push({
id: modelId,
name: m.name || modelId,
api,
provider: "opencode",
baseUrl,
reasoning: m.reasoning === true,
input: m.modalities?.input?.includes("image") ? ["text", "image"] : ["text"],
cost: {
input: m.cost?.input || 0,
output: m.cost?.output || 0,
cacheRead: m.cost?.cache_read || 0,
cacheWrite: m.cost?.cache_write || 0,
},
contextWindow: m.limit?.context || 4096,
maxTokens: m.limit?.output || 4096,
});
}
}
// Process GitHub Copilot models
if (data["github-copilot"]?.models) {
for (const [modelId, model] of Object.entries(data["github-copilot"].models)) {