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Merged
jonwiggins merged 3 commits into from
Jun 10, 2026
Merged

Copilot/claude fable 5 #542

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cb5fddb
feat: add new anthropic baseline models
Copilot Jun 10, 2026
8be629a
feat: add new anthropic baseline models
Copilot Jun 10, 2026
1eef8dd
fix: remove latest flag from fable 5
Copilot Jun 10, 2026
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18 changes: 11 additions & 7 deletions packages/shared/src/agent-options/agent-options.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -63,7 +63,7 @@ describe("PROVIDER_CATALOGS", () => {

describe("resolveModelId", () => {
it("resolves the opus alias to the latest dated id", () => {
expect(resolveModelId("anthropic", "opus")).toBe("claude-opus-4-7");
expect(resolveModelId("anthropic", "opus")).toBe("claude-opus-4-8");
});

it("resolves the sonnet alias", () => {
Expand All @@ -74,6 +74,10 @@ describe("resolveModelId", () => {
expect(resolveModelId("anthropic", "haiku")).toBe("claude-haiku-4-5-20251001");
});

it("resolves the fable alias", () => {
expect(resolveModelId("anthropic", "fable")).toBe("claude-fable-5");
});

it("returns an exact-match dated id unchanged", () => {
expect(resolveModelId("anthropic", "claude-sonnet-4-5")).toBe("claude-sonnet-4-5");
});
Expand All @@ -87,7 +91,7 @@ describe("resolveModelId", () => {

it("returns the latest-marked model when no input is provided", () => {
// Pick a provider with an explicit `latest` flag.
expect(resolveModelId("anthropic", undefined)).toBe("claude-opus-4-7");
expect(resolveModelId("anthropic", undefined)).toBe("claude-opus-4-8");
});

it("returns undefined for free-text providers with no baseline models", () => {
Expand All @@ -102,7 +106,7 @@ describe("resolveModelId", () => {
});

it("treats an empty string like undefined", () => {
expect(resolveModelId("anthropic", "")).toBe("claude-opus-4-7");
expect(resolveModelId("anthropic", "")).toBe("claude-opus-4-8");
});

it("resolves gemini-pro alias", () => {
Expand All @@ -123,9 +127,9 @@ describe("mergeLiveModels", () => {
});

it("preserves baseline metadata when a live id matches", () => {
const opus = ANTHROPIC_CATALOG.models.find((m) => m.id === "claude-opus-4-7")!;
const merged = mergeLiveModels(ANTHROPIC_CATALOG, ["claude-opus-4-7"]);
const mergedOpus = merged.models.find((m) => m.id === "claude-opus-4-7")!;
const opus = ANTHROPIC_CATALOG.models.find((m) => m.id === "claude-opus-4-8")!;
const merged = mergeLiveModels(ANTHROPIC_CATALOG, ["claude-opus-4-8"]);
const mergedOpus = merged.models.find((m) => m.id === "claude-opus-4-8")!;
expect(mergedOpus.label).toBe(opus.label);
expect(mergedOpus.latest).toBe(true);
expect(mergedOpus.source).toBe("baseline");
Expand Down Expand Up @@ -160,7 +164,7 @@ describe("groupModelsByFamily", () => {
it("groups anthropic models by family", () => {
const groups = groupModelsByFamily(ANTHROPIC_CATALOG);
const families = groups.map((g) => g.family).sort();
expect(families).toEqual(["haiku", "opus", "sonnet"]);
expect(families).toEqual(["fable", "haiku", "opus", "sonnet"]);
});

it("falls back to the model id when there is no family", () => {
Expand Down
17 changes: 15 additions & 2 deletions packages/shared/src/agent-options/anthropic.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -10,11 +10,17 @@ export const ANTHROPIC_CATALOG: ProviderCatalog = {
label: "Claude Code",
modelField: "claudeModel",
models: [
{
id: "claude-opus-4-8",
label: "Opus 4.8",
family: "opus",
latest: true,
source: "baseline",
},
{
id: "claude-opus-4-7",
label: "Opus 4.7",
family: "opus",
latest: true,
source: "baseline",
},
{
Expand Down Expand Up @@ -43,11 +49,18 @@ export const ANTHROPIC_CATALOG: ProviderCatalog = {
latest: true,
source: "baseline",
},
{
id: "claude-fable-5",
label: "Fable 5",
family: "fable",
source: "baseline",
},
],
aliases: {
opus: "claude-opus-4-7",
opus: "claude-opus-4-8",
sonnet: "claude-sonnet-4-6",
haiku: "claude-haiku-4-5-20251001",
fable: "claude-fable-5",
},
options: [
{
Expand Down
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