The Gemini API keeps running. The text-to-speech preview models gemini-2.5-flash-preview-tts, gemini-2.5-pro-preview-tts and gemini-3.1-flash-tts-preview can be called until December 18, 2026, when Google shuts them down. Google names gemini-3.8-flash-tts or gemini-3.8-flash-lite-tts as the replacement. Google moved this shutdown from an earlier date in November.
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GitHub Copilot keeps running. On December 14, 2026, GitHub deprecates six models across all Copilot experiences, including Copilot Chat, inline edits, ask and agent modes, and code completions: Claude Fable 5 (GitHub's suggested alternative is Claude Fable 5.2), Claude Haiku 4.5 (Claude Haiku 5.5), Gemini 3.8 Flash (Gemini 4 Hydrogen), Gemini 4 Argon (Gemini 4 Carbon), Grok 4.6 (Grok 4.7) and Kimi K3 (alternative to be announced). Claude Haiku 4.5 stays available to individual Copilot subscribers on annual plans.
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