How to prompt Gemini 3.1's new text to speech model
gemini google speech
| Source: Dev.to | Original article
Google DeepMind has unveiled Gemini 3.1 Flash, a text‑to‑speech (TTS) model that can be steered with natural‑language prompts to produce audio that matches exact style, accent, pace and tone. The model, announced on the Gemini API blog, expands the Gemini suite beyond text generation, letting developers specify “a calm Scandinavian‑accent narration at a leisurely speed” or “an energetic tech‑podcast voice with a slight British twang” directly in the prompt. Gemini 3.1 Flash supports both single‑speaker output and multi‑speaker, podcast‑style mixes, and it can be accessed through the same Gemini API used for Gemini 3.1 chat and vision.
The launch matters because it lowers the barrier for high‑fidelity, customizable speech synthesis. Until now, developers have relied on either large, opaque commercial services or on open‑source projects such as MOSS‑TTS‑Nano, which, while impressive, lack the granular prompt‑driven control that Gemini 3.1 Flash offers. For Nordic media firms, e‑learning platforms and accessibility advocates, the ability to generate region‑specific accents and pacing without hand‑crafting SSML scripts could accelerate localisation and inclusion efforts. The model also dovetails with Google’s broader audio portfolio—speech‑to‑speech translation and audio summarisation—hinting at an integrated workflow where a single API can ingest, transform and output spoken content.
What to watch next is the rollout timeline for the Gemini 3.1 Flash endpoint on Google Cloud. Early adopters will test pricing, latency and multi‑speaker mixing limits, while competitors are likely to respond with tighter integration of their own TTS stacks. Keep an eye on the upcoming Gemini 4.0 roadmap, which promises deeper multimodal audio‑text interaction, and on developer‑focused tutorials that will reveal how the prompting techniques highlighted in today’s blog post translate into production pipelines. The next few months will determine whether Gemini’s controllable TTS reshapes the Nordic AI audio market or remains a niche feature for experimental apps.
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