diff --git a/aborist/cli.py b/aborist/cli.py
index 42d612e..a25b91f 100644
--- a/aborist/cli.py
+++ b/aborist/cli.py
@@ -2852,10 +2852,12 @@ def build_parser() -> argparse.ArgumentParser:
     )
     ask_cmd.add_argument(
         "--answer-mode", dest="answer_mode", default=None,
-        choices=["quote", "claim_lattice_pointer"],
+        choices=["quote", "claim_lattice_pointer", "claim_lattice"],
         help=(
             "answer schema. See `query --answer-mode` for full semantics. "
-            "Default 'quote'; 'claim_lattice_pointer' enables quote-by-pointer."
+            "Default 'quote'; 'claim_lattice_pointer' enables quote-by-pointer; "
+            "'claim_lattice' is the JSON variant (vLLM guided_json + lenient "
+            "pre-parser; pairs with grammar-constrained inference)."
         ),
     )
     ask_cmd.set_defaults(func=_cmd_ask)
@@ -2949,7 +2951,7 @@ def build_parser() -> argparse.ArgumentParser:
     )
     query_cmd.add_argument(
         "--answer-mode", dest="answer_mode", default=None,
-        choices=["quote", "claim_lattice_pointer"],
+        choices=["quote", "claim_lattice_pointer", "claim_lattice"],
         help=(
             "answer schema. 'quote' (default): model writes prose with "
             "verbatim quote spans inline. 'claim_lattice_pointer' (G0 "
@@ -2957,7 +2959,9 @@ def build_parser() -> argparse.ArgumentParser:
             "map (E1, E2, …); model writes pointer-line prose ('Claim. "
             "[E12]'); renderer interpolates literal spans. Synthetic-"
             "elision-by-construction-impossible. No repair loop "
-            "(one-shot discipline)."
+            "(one-shot discipline). 'claim_lattice' is the JSON variant "
+            "(vLLM guided_json + lenient pre-parser; pairs with grammar-"
+            "constrained inference like Qwen 3.6 reasoner / Claude / GPT-4)."
         ),
     )
     query_cmd.set_defaults(func=_cmd_query)