Gemini 3.5 Flash changelog

Gemini 3.5 Flash deprecated, requests now routed to 3.6 Flash

gemini-3.5-flash is deprecated and no longer selectable in AI Studio. API requests to gemini-3.5-flash are automatically served by gemini-3.6-flash.

Who is affected:

Apps calling gemini-3.5-flash, which now get gemini-3.6-flash responses.

Action needed:

Update the model string to gemini-3.6-flash or gemini-3.8-flash and retest.

Copilot removes Claude Opus 4.7, Kimi K2.7 Code, Gemini 3.5 Flash and 3.6 Flash

GitHub removed four models from all Copilot experiences, announced on September 3. Suggested replacements are Claude Opus 5.5, Kimi K3 and Gemini 3.8 Flash.

Who is affected:

Copilot users and workflows pinned to any of the four models.

Action needed:

Switch to the suggested replacement models.

Gemini 3.5 Flash in GitHub Copilot at a 14x multiplier

Gemini 3.5 Flash rolled out to Copilot Pro, Pro+, Business and Enterprise with a tentative 14x premium request multiplier.

Who is affected:

Copilot users choosing between models by cost.

What to do:

Business and Enterprise admins must enable the Gemini 3.5 Flash policy.

Gemini 3.5 Flash generally available

Google released gemini-3.5-flash as GA, describing it as its most intelligent model for sustained frontier performance on agentic and coding tasks.

gemini-flash-latest now points to Gemini 3.5 Flash

With the Gemini 3.5 Flash GA release, Google moved the gemini-flash-latest alias to this model.

Who is affected:

Apps that call the gemini-flash-latest alias instead of a pinned model version.

What to do:

Pin a specific model version if you need stable behavior.