●ROBOTICS — The ER 1.6 preview that shut down on August 31 does have a successor. Gemini Robotics ER 2 is in public preview, in both standard and streaming variants●VIDEO — ER 2 judges success and failure from live video rather than still snapshots, which is what lets it catch spills, slips, and misalignments while a task is still running●DEADLINE — Next up is September 30, when gemini-omni-flash-preview is retired. The target is gemini-omni-1.1-flash, GA since August 27, and there are now under four weeks left●APIKEY — Every remaining standard API key, restricted ones included, stops working during September. The replacement is an auth key bound to a Google Cloud service account●PRICE — Gemini 3.7 Flash keeps its introductory $0.75/$3.75 per 1M through December 31, then moves to $1.50/$7.50 on January 1, 2027. Any estimate crossing the year needs both figures●AUDIO — Gemini 3.5 Transcribe handles language detection across 85+ languages, speaker diarization, word-level timestamps, and custom vocabulary biasing of up to 1,000 terms●ROBOTICS — The ER 1.6 preview that shut down on August 31 does have a successor. Gemini Robotics ER 2 is in public preview, in both standard and streaming variants●VIDEO — ER 2 judges success and failure from live video rather than still snapshots, which is what lets it catch spills, slips, and misalignments while a task is still running●DEADLINE — Next up is September 30, when gemini-omni-flash-preview is retired. The target is gemini-omni-1.1-flash, GA since August 27, and there are now under four weeks left●APIKEY — Every remaining standard API key, restricted ones included, stops working during September. The replacement is an auth key bound to a Google Cloud service account●PRICE — Gemini 3.7 Flash keeps its introductory $0.75/$3.75 per 1M through December 31, then moves to $1.50/$7.50 on January 1, 2027. Any estimate crossing the year needs both figures●AUDIO — Gemini 3.5 Transcribe handles language detection across 85+ languages, speaker diarization, word-level timestamps, and custom vocabulary biasing of up to 1,000 terms

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Speech synthesis

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Gemini TTS² Narration¹ Solo development¹ Text to Speech¹ Voice Generation¹ Gemini API¹

⟐ Gemini Dev/2026-07-14Advanced

Making TTS seams inaudible: prosody continuity and silence boundaries for long-form narration

Splitting a long article by sentence and synthesizing each piece leaves audible seams: prosody resets at every sentence start, clicks appear at PCM joints, and pauses feel uneven. Four layers -- context priming, zero-crossing edge fades, punctuation-aware silence, and an idempotent seam ledger -- make the joins disappear, with full code.

◈ Gemini API/2026-04-02Intermediate

Gemini TTS API: Generate Expressive Voice with Style Controls

A comprehensive guide to using the Gemini 2.5 Flash and Pro Text-to-Speech API. Learn how to specify voice styles, handle multi-speaker audio, and control tone and emotion through prompts — with practical code examples.