# Regression - Gemini flash lite with thinking broken after upgrade to 2026.8.0

**URL:** <https://meta.discourse.org/t/regression-gemini-flash-lite-with-thinking-broken-after-upgrade-to-2026-8-0/411445>\
**Category:** Bug\
**Tags:** ai\
**Created:** [September 2, 2026, 4:37am UTC](https://meta.discourse.org/t/regression-gemini-flash-lite-with-thinking-broken-after-upgrade-to-2026-8-0/411445 "2026-09-02T04:37:23Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![sam](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/sam/32/102149_2.png) [@sam](https://meta.discourse.org/u/sam)\
**Post date:** [September 2, 2026, 5:15am UTC](https://meta.discourse.org/t/regression-gemini-flash-lite-with-thinking-broken-after-upgrade-to-2026-8-0/411445/3 "2026-09-02T05:15:47Z")

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Why are you using the legacy API? Can you switch to the non-legacy API and use: gemini-3.5-flash-lite?

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_[View the full topic](https://meta.discourse.org/t/regression-gemini-flash-lite-with-thinking-broken-after-upgrade-to-2026-8-0/411445)._