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Current Plugin does not support gpt-5.6 model family #468
Description
ERROR: {"type":"error","status":400,"error":{"type":"invalid_request_error","message":"The 'gpt-5.6-terra' model requires a newer version of Codex. Please upgrade to the latest app or CLI and try again."}}
ERROR: {"type":"error","status":400,"error":{"type":"invalid_request_error","message":"The 'gpt-5.6-terra' model requires a newer version of Codex. Please upgrade to the latest app or CLI and try again."}}
Reacted by Pablo Picasso, kotarotsubaki and Zartris
Activity
brandi1409 commentedon Jul 10, 2026
support
eepiam commentedon Jul 10, 2026
Same error on the stop hook
s-smits commentedon Jul 11, 2026
Still no support?
CBEPX commentedon Sep 27, 2026
This is addressed in the CBEPX fork release v1.3.0; see the changelog for the full list of changes. Model aliases now resolve against the local Codex catalogue (
$CODEX_HOME/models_cache.json, thencodex debug models --bundled, with a hardcoded list only as a last resort), and--effortis validated against the resolved model, so newer model families such as GPT-5.6 are recognized without waiting on a plugin release. The same change also covers #703 and #485, which reported the same gap from different angles.This is a fork release, not an upstream fix, so I'm leaving this issue open for the maintainers here.