diff --git a/src/fable5/fableflow-manifest.test.ts b/src/fable5/fableflow-manifest.test.ts
index 52fb120..1b561f9 100644
--- a/src/fable5/fableflow-manifest.test.ts
+++ b/src/fable5/fableflow-manifest.test.ts
@@ -24,6 +24,7 @@ describe("fableflow manifest", () => {
       "zte-gate",
       "factory-reconcile",
       "model-access",
+      "fugu-ultra",
       "rsi-canary",
     ]));
   });
@@ -48,6 +49,8 @@ describe("fableflow manifest", () => {
     expect(edges).toContain("governance-contract>agent-chain-workers");
     expect(edges).toContain("agent-chain-workers>zte-gate");
     expect(edges).toContain("factory-reconcile>git-proxy-8099");
+    expect(edges).toContain("model-access>fugu-ultra");
+    expect(edges).toContain("fugu-ultra>agent-chain-workers");
     expect(edges).toContain("deploy-webhook-8098>git-proxy-8099");
   });
 
diff --git a/src/fable5/fableflow-manifest.ts b/src/fable5/fableflow-manifest.ts
index aa02122..ca65259 100644
--- a/src/fable5/fableflow-manifest.ts
+++ b/src/fable5/fableflow-manifest.ts
@@ -68,7 +68,8 @@ export function createFableFlowManifest(): FableFlowManifest {
       node("zte-gate", "ZTE Gate", "receipt", "verify", "gate", "plan/gate", "Verifier gate before deploy decisions", "src/fable5/zte-protocol.ts", ".fable/zte-receipts.jsonl", "ZT", 720, 360),
       node("factory-reconcile", "Factory Reconcile", "receipt", "verify", "factory", "live receipt", "Live reconciliation overrides memory", "src/fable5/factory-reconciliation.ts", ".fable/factory/reconciliation-live.json", "RC", 960, 360),
       node("model-access", "Model Access", "receipt", "verify", "models", "access check", "Model access claims require fresh receipt", "src/fable5/model-access-receipt.ts", "fable.model_access.receipt.v1", "MA", 0, 540),
-      node("rsi-canary", "RSI Canary", "receipt", "verify", "rsi", "canary only", "Canary repair proven; broad autopatch remains unproven without fresh receipt", "fable rsi receipts", ".fable/rsi/canary-live-*.json", "RS", 240, 540),
+      node("fugu-ultra", "Fugu Ultra", "model", "verify", "models", "orchestration model", "Sakana Fugu Ultra candidate; unknown until model-access receipt verifies official access", "sakana/fugu-ultra access probe", "fable.model_access.receipt.v1", "FU", 240, 540),
+      node("rsi-canary", "RSI Canary", "receipt", "verify", "rsi", "canary only", "Canary repair proven; broad autopatch remains unproven without fresh receipt", "fable rsi receipts", ".fable/rsi/canary-live-*.json", "RS", 480, 540),
     ],
     edges: [
       edge("feedbackpilot-intake", "forgejo-intake", "intake", "opens issue"),
@@ -81,6 +82,8 @@ export function createFableFlowManifest(): FableFlowManifest {
       edge("factory-reconcile", "git-proxy-8099", "deploy", "canonical gated path"),
       edge("deploy-webhook-8098", "git-proxy-8099", "legacy", "superseded by"),
       edge("forgejo-writeback", "forgejo", "intake", "comments/labels"),
+      edge("model-access", "fugu-ultra", "verify", "tracks access"),
+      edge("fugu-ultra", "agent-chain-workers", "verify", "candidate worker after verified access"),
       edge("model-access", "agent-chain-workers", "verify", "provider evidence"),
       edge("rsi-canary", "zte-gate", "verify", "canary proof only"),
     ],
diff --git a/src/fable5/model-access-receipt.test.ts b/src/fable5/model-access-receipt.test.ts
index 5f22a57..6fc3d25 100644
--- a/src/fable5/model-access-receipt.test.ts
+++ b/src/fable5/model-access-receipt.test.ts
@@ -33,6 +33,16 @@ describe("model access receipt", () => {
     expect(receipt.reasons).toContain("ChatGPT Cyber access not verified");
   });
 
+  it("tracks Fugu Ultra without claiming access", () => {
+    const receipt = createModelAccessReceipt({
+      probes: [{ surface: "sakana-fugu", command: "sakana/fugu-ultra access probe", status: "unknown", model: "fugu-ultra", evidence: "not probed; do not buy or bypass with VPN" }],
+    });
+
+    expect(receipt.decision).toBe("blocked");
+    expect(receipt.claims).toEqual([]);
+    expect(receipt.reasons).toContain("one or more model surfaces are unknown");
+  });
+
   it("writes a JSON receipt", () => {
     const dir = fs.mkdtempSync(path.join(os.tmpdir(), "model-access-"));
     const file = path.join(dir, "receipt.json");
diff --git a/src/fable5/model-access-receipt.ts b/src/fable5/model-access-receipt.ts
index 59f3526..653188e 100644
--- a/src/fable5/model-access-receipt.ts
+++ b/src/fable5/model-access-receipt.ts
@@ -1,7 +1,7 @@
 import * as fs from "node:fs";
 import * as path from "node:path";
 
-export type ModelAccessSurface = "pi" | "openrouter" | "openai" | "chatgpt-cyber" | "other";
+export type ModelAccessSurface = "pi" | "openrouter" | "openai" | "chatgpt-cyber" | "sakana-fugu" | "other";
 export type ModelAccessStatus = "available" | "blocked" | "missing" | "unknown";
 
 export interface ModelAccessProbe {
diff --git a/src/index.ts b/src/index.ts
index b9bfee1..804a0f8 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1968,6 +1968,7 @@ fable
       { surface: "openai" as const, command: "env OPENAI_API_KEY", status: process.env.OPENAI_API_KEY ? "unknown" as const : "missing" as const, evidence: process.env.OPENAI_API_KEY ? "key present; API not probed" : "OPENAI_API_KEY missing" },
       { surface: "pi" as const, command: "pi --list-models cyber", status: "unknown" as const, evidence: "not probed by this fail-closed receipt command" },
       { surface: "chatgpt-cyber" as const, command: "https://chatgpt.com/cyber", status: "unknown" as const, evidence: "browser/login-gated surface not probed by this command" },
+      { surface: "sakana-fugu" as const, command: "sakana/fugu-ultra access probe", status: "unknown" as const, model: "fugu-ultra", evidence: "not probed; do not buy or bypass with VPN" },
     ];
     const out = opts.output ?? path.join(".fable", "api", "model-access-live.json");
     const receipt = createModelAccessReceipt({ probes });