Merge pull request #669 from magimetal/opencode-zen-model-defaults

feat(opencode-zen): update models with sensible defaults
2026-01-10 17:27:05 +00:00
parent 9b5ce2530a 2d105d16f8
commit 2455a2b26a
3 changed files with 155 additions and 101 deletions
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@
 - Onboarding/Models: add first-class Z.AI (GLM) auth choice (`zai-api-key`) + `--zai-api-key` flag.
 - Agents: add human-delay pacing between block replies (modes: off/natural/custom, per-agent configurable). (#446) — thanks @tony-freedomology.
 - Onboarding/Models: add catalog-backed default model picker to onboarding + configure. (#611) — thanks @jonasjancarik.
+- Agents/OpenCode Zen: update fallback models + defaults, keep legacy alias mappings. (#669) — thanks @magimetal.

 ### Fixes
 - Auto-reply: prefer `RawBody` for command/directive parsing (WhatsApp + Discord) and prevent fallback runs from clobbering concurrent session updates. (#643) — thanks @mcinteerj.
--- a/src/agents/opencode-zen-models.test.ts
+++ b/src/agents/opencode-zen-models.test.ts
@@ -12,6 +12,14 @@ describe("resolveOpencodeZenAlias", () => {
    expect(resolveOpencodeZenAlias("opus")).toBe("claude-opus-4-5");
  });

+  it("keeps legacy aliases working", () => {
+    expect(resolveOpencodeZenAlias("sonnet")).toBe("claude-opus-4-5");
+    expect(resolveOpencodeZenAlias("haiku")).toBe("claude-opus-4-5");
+    expect(resolveOpencodeZenAlias("gpt4")).toBe("gpt-5.1");
+    expect(resolveOpencodeZenAlias("o1")).toBe("gpt-5.2");
+    expect(resolveOpencodeZenAlias("gemini-2.5")).toBe("gemini-3-pro");
+  });
+
  it("resolves gpt5 alias", () => {
    expect(resolveOpencodeZenAlias("gpt5")).toBe("gpt-5.2");
  });
@@ -51,16 +59,19 @@ describe("getOpencodeZenStaticFallbackModels", () => {
  it("returns an array of models", () => {
    const models = getOpencodeZenStaticFallbackModels();
    expect(Array.isArray(models)).toBe(true);
-    expect(models.length).toBeGreaterThan(0);
+    expect(models.length).toBe(11);
  });

-  it("includes Claude, GPT, and Gemini models", () => {
+  it("includes Claude, GPT, Gemini, GLM, and MiniMax models", () => {
    const models = getOpencodeZenStaticFallbackModels();
    const ids = models.map((m) => m.id);

    expect(ids).toContain("claude-opus-4-5");
    expect(ids).toContain("gpt-5.2");
+    expect(ids).toContain("gpt-5.1-codex");
    expect(ids).toContain("gemini-3-pro");
+    expect(ids).toContain("glm-4.7-free");
+    expect(ids).toContain("minimax-m2.1-free");
  });

  it("returns valid ModelDefinitionConfig objects", () => {
@@ -80,9 +91,17 @@ describe("getOpencodeZenStaticFallbackModels", () => {
 describe("OPENCODE_ZEN_MODEL_ALIASES", () => {
  it("has expected aliases", () => {
    expect(OPENCODE_ZEN_MODEL_ALIASES.opus).toBe("claude-opus-4-5");
-    expect(OPENCODE_ZEN_MODEL_ALIASES.sonnet).toBe("claude-sonnet-4-20250514");
+    expect(OPENCODE_ZEN_MODEL_ALIASES.codex).toBe("gpt-5.1-codex");
    expect(OPENCODE_ZEN_MODEL_ALIASES.gpt5).toBe("gpt-5.2");
-    expect(OPENCODE_ZEN_MODEL_ALIASES.o1).toBe("o1-2025-04-16");
    expect(OPENCODE_ZEN_MODEL_ALIASES.gemini).toBe("gemini-3-pro");
+    expect(OPENCODE_ZEN_MODEL_ALIASES.glm).toBe("glm-4.7-free");
+    expect(OPENCODE_ZEN_MODEL_ALIASES.minimax).toBe("minimax-m2.1-free");
+
+    // Legacy aliases (kept for backward compatibility).
+    expect(OPENCODE_ZEN_MODEL_ALIASES.sonnet).toBe("claude-opus-4-5");
+    expect(OPENCODE_ZEN_MODEL_ALIASES.haiku).toBe("claude-opus-4-5");
+    expect(OPENCODE_ZEN_MODEL_ALIASES.gpt4).toBe("gpt-5.1");
+    expect(OPENCODE_ZEN_MODEL_ALIASES.o1).toBe("gpt-5.2");
+    expect(OPENCODE_ZEN_MODEL_ALIASES["gemini-2.5"]).toBe("gemini-3-pro");
  });
 });
--- a/src/agents/opencode-zen-models.ts
+++ b/src/agents/opencode-zen-models.ts
@@ -24,32 +24,57 @@ const CACHE_TTL_MS = 60 * 60 * 1000; // 1 hour
 * Users can use "opus" instead of "claude-opus-4-5", etc.
 */
 export const OPENCODE_ZEN_MODEL_ALIASES: Record<string, string> = {
-  // Claude aliases
+  // Claude
  opus: "claude-opus-4-5",
  "opus-4.5": "claude-opus-4-5",
  "opus-4": "claude-opus-4-5",
-  sonnet: "claude-sonnet-4-20250514",
-  "sonnet-4": "claude-sonnet-4-20250514",
-  haiku: "claude-haiku-3-5-20241022",
-  "haiku-3.5": "claude-haiku-3-5-20241022",

-  // GPT aliases
+  // Legacy Claude aliases (OpenCode Zen rotates model catalogs; keep old keys working).
+  sonnet: "claude-opus-4-5",
+  "sonnet-4": "claude-opus-4-5",
+  haiku: "claude-opus-4-5",
+  "haiku-3.5": "claude-opus-4-5",
+
+  // GPT-5.x family
  gpt5: "gpt-5.2",
  "gpt-5": "gpt-5.2",
-  gpt4: "gpt-4.1",
-  "gpt-4": "gpt-4.1",
-  "gpt-mini": "gpt-4.1-mini",
+  "gpt-5.1": "gpt-5.1",

-  // O-series aliases
-  o1: "o1-2025-04-16",
-  o3: "o3-2025-04-16",
-  "o3-mini": "o3-mini-2025-04-16",
+  // Legacy GPT aliases (keep old config/docs stable; map to closest current equivalents).
+  gpt4: "gpt-5.1",
+  "gpt-4": "gpt-5.1",
+  "gpt-mini": "gpt-5.1-codex-mini",

-  // Gemini aliases
+  // Legacy O-series aliases (no longer in the Zen catalog; map to a strong default).
+  o1: "gpt-5.2",
+  o3: "gpt-5.2",
+  "o3-mini": "gpt-5.1-codex-mini",
+
+  // Codex family
+  codex: "gpt-5.1-codex",
+  "codex-mini": "gpt-5.1-codex-mini",
+  "codex-max": "gpt-5.1-codex-max",
+
+  // Gemini
  gemini: "gemini-3-pro",
  "gemini-pro": "gemini-3-pro",
  "gemini-3": "gemini-3-pro",
-  "gemini-2.5": "gemini-2.5-pro",
+  flash: "gemini-3-flash",
+  "gemini-flash": "gemini-3-flash",
+
+  // Legacy Gemini 2.5 aliases (map to the nearest current Gemini tier).
+  "gemini-2.5": "gemini-3-pro",
+  "gemini-2.5-pro": "gemini-3-pro",
+  "gemini-2.5-flash": "gemini-3-flash",
+
+  // GLM (free + alpha)
+  glm: "glm-4.7-free",
+  "glm-free": "glm-4.7-free",
+  "alpha-glm": "alpha-glm-4.7",
+
+  // MiniMax
+  minimax: "minimax-m2.1-free",
+  "minimax-free": "minimax-m2.1-free",
 };

 /**
@@ -69,65 +94,85 @@ export function resolveOpencodeZenModelApi(_modelId: string): ModelApi {
  return "openai-completions";
 }

-/**
- * Check if a model is a reasoning model (extended thinking).
- */
-function isReasoningModel(modelId: string): boolean {
-  const lower = modelId.toLowerCase();
-  return (
-    lower.includes("opus") ||
-    lower.startsWith("o1-") ||
-    lower.startsWith("o3-") ||
-    lower.startsWith("o4-") ||
-    lower.includes("-thinking")
-  );
-}
-
 /**
 * Check if a model supports image input.
 */
 function supportsImageInput(modelId: string): boolean {
  const lower = modelId.toLowerCase();
-  // Most modern models support images, except some reasoning-only models
-  if (lower.startsWith("o1-") || lower.startsWith("o3-")) {
+  if (lower.includes("glm") || lower.includes("minimax")) {
    return false;
  }
  return true;
 }

-// Default cost structure (per million tokens, in USD cents)
-// These are approximate; actual costs depend on OpenCode Zen pricing
-const DEFAULT_COST = {
-  input: 0, // Included in subscription
-  output: 0,
-  cacheRead: 0,
-  cacheWrite: 0,
+const MODEL_COSTS: Record<
+  string,
+  { input: number; output: number; cacheRead: number; cacheWrite: number }
+> = {
+  "gpt-5.1-codex": {
+    input: 1.07,
+    output: 8.5,
+    cacheRead: 0.107,
+    cacheWrite: 0,
+  },
+  "claude-opus-4-5": { input: 5, output: 25, cacheRead: 0.5, cacheWrite: 6.25 },
+  "gemini-3-pro": { input: 2, output: 12, cacheRead: 0.2, cacheWrite: 0 },
+  "alpha-glm-4.7": { input: 0.6, output: 2.2, cacheRead: 0.6, cacheWrite: 0 },
+  "gpt-5.1-codex-mini": {
+    input: 0.25,
+    output: 2,
+    cacheRead: 0.025,
+    cacheWrite: 0,
+  },
+  "gpt-5.1": { input: 1.07, output: 8.5, cacheRead: 0.107, cacheWrite: 0 },
+  "glm-4.7-free": { input: 0, output: 0, cacheRead: 0, cacheWrite: 0 },
+  "gemini-3-flash": { input: 0.5, output: 3, cacheRead: 0.05, cacheWrite: 0 },
+  "gpt-5.1-codex-max": {
+    input: 1.25,
+    output: 10,
+    cacheRead: 0.125,
+    cacheWrite: 0,
+  },
+  "minimax-m2.1-free": { input: 0, output: 0, cacheRead: 0, cacheWrite: 0 },
+  "gpt-5.2": { input: 1.75, output: 14, cacheRead: 0.175, cacheWrite: 0 },
+};
+
+const DEFAULT_COST = { input: 0, output: 0, cacheRead: 0, cacheWrite: 0 };
+
+const MODEL_CONTEXT_WINDOWS: Record<string, number> = {
+  "gpt-5.1-codex": 400000,
+  "claude-opus-4-5": 200000,
+  "gemini-3-pro": 1048576,
+  "alpha-glm-4.7": 204800,
+  "gpt-5.1-codex-mini": 400000,
+  "gpt-5.1": 400000,
+  "glm-4.7-free": 204800,
+  "gemini-3-flash": 1048576,
+  "gpt-5.1-codex-max": 400000,
+  "minimax-m2.1-free": 204800,
+  "gpt-5.2": 400000,
 };

-// Default context windows by model family
 function getDefaultContextWindow(modelId: string): number {
-  const lower = modelId.toLowerCase();
-  if (lower.includes("opus")) return 200000;
-  if (lower.includes("sonnet")) return 200000;
-  if (lower.includes("haiku")) return 200000;
-  if (lower.includes("gpt-5")) return 256000;
-  if (lower.includes("gpt-4")) return 128000;
-  if (lower.startsWith("o1-") || lower.startsWith("o3-")) return 200000;
-  if (lower.includes("gemini-3")) return 1000000;
-  if (lower.includes("gemini-2.5")) return 1000000;
-  if (lower.includes("gemini")) return 128000;
-  return 128000; // Conservative default
+  return MODEL_CONTEXT_WINDOWS[modelId] ?? 128000;
 }

+const MODEL_MAX_TOKENS: Record<string, number> = {
+  "gpt-5.1-codex": 128000,
+  "claude-opus-4-5": 64000,
+  "gemini-3-pro": 65536,
+  "alpha-glm-4.7": 131072,
+  "gpt-5.1-codex-mini": 128000,
+  "gpt-5.1": 128000,
+  "glm-4.7-free": 131072,
+  "gemini-3-flash": 65536,
+  "gpt-5.1-codex-max": 128000,
+  "minimax-m2.1-free": 131072,
+  "gpt-5.2": 128000,
+};
+
 function getDefaultMaxTokens(modelId: string): number {
-  const lower = modelId.toLowerCase();
-  if (lower.includes("opus")) return 32000;
-  if (lower.includes("sonnet")) return 16000;
-  if (lower.includes("haiku")) return 8192;
-  if (lower.startsWith("o1-") || lower.startsWith("o3-")) return 100000;
-  if (lower.includes("gpt")) return 16384;
-  if (lower.includes("gemini")) return 8192;
-  return 8192;
+  return MODEL_MAX_TOKENS[modelId] ?? 8192;
 }

 /**
@@ -138,9 +183,10 @@ function buildModelDefinition(modelId: string): ModelDefinitionConfig {
    id: modelId,
    name: formatModelName(modelId),
    api: resolveOpencodeZenModelApi(modelId),
-    reasoning: isReasoningModel(modelId),
+    // Treat Zen models as reasoning-capable so defaults pick thinkLevel="low" unless users opt out.
+    reasoning: true,
    input: supportsImageInput(modelId) ? ["text", "image"] : ["text"],
-    cost: DEFAULT_COST,
+    cost: MODEL_COSTS[modelId] ?? DEFAULT_COST,
    contextWindow: getDefaultContextWindow(modelId),
    maxTokens: getDefaultMaxTokens(modelId),
  };
@@ -149,28 +195,25 @@ function buildModelDefinition(modelId: string): ModelDefinitionConfig {
 /**
 * Format a model ID into a human-readable name.
 */
-function formatModelName(modelId: string): string {
-  // Handle common patterns
-  const replacements: Record<string, string> = {
-    "claude-opus-4-5": "Claude Opus 4.5",
-    "claude-sonnet-4-20250514": "Claude Sonnet 4",
-    "claude-haiku-3-5-20241022": "Claude Haiku 3.5",
-    "gpt-5.2": "GPT-5.2",
-    "gpt-4.1": "GPT-4.1",
-    "gpt-4.1-mini": "GPT-4.1 Mini",
-    "o1-2025-04-16": "O1",
-    "o3-2025-04-16": "O3",
-    "o3-mini-2025-04-16": "O3 Mini",
-    "gemini-3-pro": "Gemini 3 Pro",
-    "gemini-2.5-pro": "Gemini 2.5 Pro",
-    "gemini-2.5-flash": "Gemini 2.5 Flash",
-  };
+const MODEL_NAMES: Record<string, string> = {
+  "gpt-5.1-codex": "GPT-5.1 Codex",
+  "claude-opus-4-5": "Claude Opus 4.5",
+  "gemini-3-pro": "Gemini 3 Pro",
+  "alpha-glm-4.7": "Alpha GLM-4.7",
+  "gpt-5.1-codex-mini": "GPT-5.1 Codex Mini",
+  "gpt-5.1": "GPT-5.1",
+  "glm-4.7-free": "GLM-4.7",
+  "gemini-3-flash": "Gemini 3 Flash",
+  "gpt-5.1-codex-max": "GPT-5.1 Codex Max",
+  "minimax-m2.1-free": "MiniMax M2.1",
+  "gpt-5.2": "GPT-5.2",
+};

-  if (replacements[modelId]) {
-    return replacements[modelId];
+function formatModelName(modelId: string): string {
+  if (MODEL_NAMES[modelId]) {
+    return MODEL_NAMES[modelId];
  }

-  // Generic formatting: capitalize and replace dashes
  return modelId
    .split("-")
    .map((part) => part.charAt(0).toUpperCase() + part.slice(1))
@@ -179,29 +222,20 @@ function formatModelName(modelId: string): string {

 /**
 * Static fallback models when API is unreachable.
- * These are the most commonly used models.
 */
 export function getOpencodeZenStaticFallbackModels(): ModelDefinitionConfig[] {
  const modelIds = [
-    // Claude models
+    "gpt-5.1-codex",
    "claude-opus-4-5",
-    "claude-sonnet-4-20250514",
-    "claude-haiku-3-5-20241022",
-
-    // GPT models
-    "gpt-5.2",
-    "gpt-4.1",
-    "gpt-4.1-mini",
-
-    // O-series reasoning models
-    "o1-2025-04-16",
-    "o3-2025-04-16",
-    "o3-mini-2025-04-16",
-
-    // Gemini models
    "gemini-3-pro",
-    "gemini-2.5-pro",
-    "gemini-2.5-flash",
+    "alpha-glm-4.7",
+    "gpt-5.1-codex-mini",
+    "gpt-5.1",
+    "glm-4.7-free",
+    "gemini-3-flash",
+    "gpt-5.1-codex-max",
+    "minimax-m2.1-free",
+    "gpt-5.2",
  ];

  return modelIds.map(buildModelDefinition);