{"version":"2.0.60","anchor":"pro-plan-opus-default-option","canonical_anchor":"pro-plan-opus-default-option","heading":"Pro Plan Opus Default Option","tier":null,"area":null,"scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.0.60\/e\/pro-plan-opus-default-option","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.0.60","markdown":"### Pro Plan Opus Default Option\n\n**What:** New experimental feature that allows Pro plan subscribers to use Opus 4.5 as their default model.\n\n**How it works:** When enabled via the `tengu_opus_default_pro_plan` experiment, Pro plan users will see \"Opus 4.5 \u00b7 Most capable for complex work\" as their default model option.\n\n**Details:**\n\n- Controlled by experimental flag `tengu_opus_default_pro_plan` with variant `opus_is_default`\n- Added `VI6()` function at line 181554 that checks if the user's plan is \"pro\"\n- Added `haA()` function at line 181569 that checks if the Opus default experiment is enabled\n- Model description function `uaA()` at line 181634 now includes the Pro plan Opus option check"}