diff --git a/.fabro/workflows/implement-plan/workflow.fabro b/.fabro/workflows/implement-plan/workflow.fabro
index e2a59dcae..fc0050c3b 100644
--- a/.fabro/workflows/implement-plan/workflow.fabro
+++ b/.fabro/workflows/implement-plan/workflow.fabro
@@ -8,12 +8,12 @@ digraph ImplementPlan {
     toolchain         [label="Toolchain", shape=parallelogram, script="command -v cargo >/dev/null || { curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y && sudo ln -sf $HOME/.cargo/bin/* /usr/local/bin/; }; cargo --version 2>&1", max_retries=0]
     preflight_compile [label="Preflight Compile", shape=parallelogram, script="cargo check -q --workspace 2>&1", max_retries=0]
     preflight_lint    [label="Preflight Lint", shape=parallelogram, script="cargo +nightly-2026-04-14 clippy -q --workspace --all-targets -- -D warnings 2>&1", max_retries=0]
-    fix_lints         [label="Fix Lints", prompt="The preflight lint step failed. Read the build output from context and fix all clippy lint warnings.", model="anthropic/claude-fable-5", provider="openrouter", reasoning_effort="xhigh", max_visits=3]
+    fix_lints         [label="Fix Lints", prompt="The preflight lint step failed. Read the build output from context and fix all clippy lint warnings.", model="claude-opus", provider="openrouter", reasoning_effort="xhigh", max_visits=3]
     implement         [label="Implement", prompt="Read the plan file referenced in the goal and implement every step. Make all the code changes described in the plan. Use red/green TDD.", model="openai/gpt-5.6-sol", provider="openrouter", reasoning_effort="xhigh"]
-    simplify_fable    [label="Simplify (Claude Fable 5)", prompt="@prompts/simplify.md", model="anthropic/claude-fable-5", provider="openrouter", reasoning_effort="xhigh"]
+    simplify_opus     [label="Simplify (Claude Opus)", prompt="@prompts/simplify.md", model="claude-opus", provider="openrouter", reasoning_effort="xhigh"]
     simplify_sol      [label="Simplify (GPT-5.6 Sol)", prompt="@prompts/simplify.md", model="openai/gpt-5.6-sol", provider="openrouter", reasoning_effort="max"]
     verify            [label="Verify", shape=parallelogram, script="git fetch origin main 2>&1 && git merge --no-edit --no-stat origin/main 2>&1 && cargo +nightly-2026-04-14 fmt --all 2>&1 && cargo dev docs refresh 2>&1 && cargo +nightly-2026-04-14 fmt --check --all 2>&1 && { command -v rg >/dev/null 2>&1 || { echo 'rg is required for verify'; exit 127; }; } && ! rg -n 'AuthMode::Disabled|RunAuthMethod|RunSubjectProvenance|\bActorRef\b|\bActorKind\b|AuthenticatedSubject|AuthenticatedService|AuthorizeRunScoped|AuthorizeRunBlob|AuthorizeStageArtifact|AuthorizeCommandLog|auth_method\s*==\s*\"disabled\"' lib/crates apps lib/packages docs/public/api-reference/fabro-api.yaml 2>&1 && cargo +nightly-2026-04-14 clippy --workspace --all-targets -- -D warnings 2>&1 && cargo nextest run --workspace --status-level slow --profile ci 2>&1 && cargo dev docs check 2>&1 && bun install --frozen-lockfile 2>&1 && (cd apps/fabro-web && bun run typecheck) 2>&1 && (cd apps/fabro-web && bun run test) 2>&1 && (cd lib/packages/fabro-api-client && bun run typecheck) 2>&1 && cargo dev build -- -p fabro-cli --release 2>&1", timeout="20m", goal_gate=true, retry_target="fixup"]
-    fixup             [label="Fixup", prompt="The verify step failed. Read the build output from context and fix all format, clippy, Rust test, docs, TypeScript typecheck/test, and build failures.", model="anthropic/claude-fable-5", provider="openrouter", reasoning_effort="xhigh", max_visits=3]
+    fixup             [label="Fixup", prompt="The verify step failed. Read the build output from context and fix all format, clippy, Rust test, docs, TypeScript typecheck/test, and build failures.", model="claude-opus", provider="openrouter", reasoning_effort="xhigh", max_visits=3]
 
     start -> toolchain
     toolchain -> preflight_compile [condition="outcome=succeeded"]
@@ -23,7 +23,7 @@ digraph ImplementPlan {
     preflight_lint -> implement [condition="outcome=succeeded"]
     preflight_lint -> fix_lints
     fix_lints -> preflight_lint
-    implement -> simplify_fable -> simplify_sol -> verify
+    implement -> simplify_opus -> simplify_sol -> verify
     verify -> exit  [condition="outcome=succeeded"]
     verify -> fixup
     fixup -> verify
diff --git a/.fabro/workflows/pr-simplify/workflow.fabro b/.fabro/workflows/pr-simplify/workflow.fabro
index 7866adad6..dabd81dba 100644
--- a/.fabro/workflows/pr-simplify/workflow.fabro
+++ b/.fabro/workflows/pr-simplify/workflow.fabro
@@ -1,7 +1,7 @@
 digraph PrSimplify {
     graph [
         goal="Run the simplify code-review pass on PR #{{ inputs.pr }}: review the changes for reuse, quality, and efficiency, apply the fixes, and update the existing PR in place.",
-        default_model="claude-fable-5",
+        default_model="claude-opus",
         rankdir=LR
     ]
 
diff --git a/.fabro/workflows/pr-simplify/workflow.toml b/.fabro/workflows/pr-simplify/workflow.toml
index 478356fc0..820bc0e33 100644
--- a/.fabro/workflows/pr-simplify/workflow.toml
+++ b/.fabro/workflows/pr-simplify/workflow.toml
@@ -8,11 +8,11 @@ _version = 1
 #
 # Required input — the PR number — is passed at run time:
 #
-#     fabro run pr-simplify -I pr=547                 # defaults to Fable
+#     fabro run pr-simplify -I pr=547                 # defaults to Opus
 #     fabro run pr-simplify -I pr=547 --model gpt-55  # override the model
 #
-# The graph sets default_model=claude-fable-5, so every stage (orchestrator +
-# review subagents) runs on Fable unless you pass --model, which wins over the
+# The graph sets default_model=claude-opus, so every stage (orchestrator +
+# review subagents) runs on Opus unless you pass --model, which wins over the
 # default (configured model / --model beats the graph default_model, which
 # beats the catalog default). The apply stage reads the model it is actually
 # running as and labels the PR `simplify:<that-model>`, so the label always