--- title: "Gemini voices, Claude Opus 5.5 and Gmail search" description: "Hear Gemini’s new voice model, try Opus 5.5 on harder work, and ask Gmail about your messages." source: "https://blog.dvx.ventures/signals/new-models-gemini-voices-gmail-search" site: "DVx Blog" publisher: "DVx Ventures" type: "DVx Signal — AI at Work" issue: "007" published: "2026-09-26" updated: "2026-09-26" last_verified: "2026-09-26" --- # DVx Signal — AI at Work 007 — Gemini voices, Claude Opus 5.5 and Gmail search > Hear Gemini’s new voice model, try Opus 5.5 on harder work, and ask Gmail about your messages. 01 Gemini ## Hear what Gemini’s new text-to-speech can do September 23 announcement · rolling out · checked September 26 [Official source ↗](https://blog.google/innovation-and-ai/models-and-research/gemini-models/gemini-3-8-text-to-speech/) [![Frame from Google's Gemini TTS voice-design demonstration, showing a character and a written voice description](https://blog.dvx.ventures/signals/at-work/007/evidence/gemini-tts-studio-optimized.jpg)](https://blog.google/innovation-and-ai/models-and-research/gemini-models/gemini-3-8-text-to-speech/) *A frame from Google’s voice-design demo. It shows the prompt for a character voice, not an independent DVx test. [View source ↗](https://blog.google/innovation-and-ai/models-and-research/gemini-models/gemini-3-8-text-to-speech/)* Hear Google’s generated sample: a high-energy DJ voice. Your browser does not support audio playback. 18-second excerpt from [Google’s official demo](https://blog.google/innovation-and-ai/models-and-research/gemini-models/gemini-3-8-text-to-speech/). - **What it does** — Gemini 3.8 Flash TTS can create a voice from a description and follow directions for pacing and dialogue. Flash-Lite TTS is designed for higher-volume audio. - **Who gets it** — Flash TTS is rolling out in Gemini Notebook, AI Studio and the Gemini API. Flash-Lite is rolling out in Google Vids and the API. Gemini Enterprise API access is coming later. - **Your move** — Listen to the official sample, then test a short script you own. Check pronunciation and tone before using it publicly. AI Studio voice replication is unavailable in the EEA, UK, Switzerland, India, Illinois and Texas. Go deeper [Demo and availability ↗](https://blog.google/innovation-and-ai/models-and-research/gemini-models/gemini-3-8-text-to-speech/)[Speech controls ↗](https://ai.google.dev/gemini-api/docs/speech-generation) 02 Claude ## Try Opus 5.5 on a complex report September 22 launch · checked September 26 [Official source ↗](https://www.anthropic.com/claude-opus-5-5) | Anthropic’s work test | Opus 5.5 | Opus 5 | | --- | --- | --- | | Research reports | 16 of 18 | 0 of 18 | | Merger analysis | 63 min | 93 min | *Anthropic’s own tests, not an independent review. Reports failed for any invented figure or quote; the merger was fictional. [View official source ↗](https://www.anthropic.com/claude-opus-5-5)* - **What it does** — [Anthropic says Opus 5.5](https://www.anthropic.com/claude-opus-5-5) is better at research, spreadsheets and presentations than Opus 5. The figures above come from Anthropic’s tests. - **Who gets it** — Opus 5.5 is available on Claude Pro, Max, Team and Enterprise. Anthropic also raised five-hour usage limits on those paid plans. Plan limits still apply. - **Your move** — Try it on a report or spreadsheet you can check. Open its sources, verify every figure and compare how much editing it needs against your usual model. Go deeper [Anthropic’s tests and access ↗](https://www.anthropic.com/claude-opus-5-5) 03 OpenAI ## Choose Sol or Luna for the task in front of you September 22 launch · checked September 26 [Official source ↗](https://openai.com/index/introducing-gpt-6-sol-and-luna/) | Model | Where to try it | Best first test | | --- | --- | --- | | GPT-6 Sol | ChatGPT Work / Codex | Longer coding or research task | | GPT-6 Luna | ChatGPT Work / Codex | Short repeatable task | *Availability from OpenAI’s launch note. Plan limits still apply. [View official source ↗](https://openai.com/index/introducing-gpt-6-sol-and-luna/)* - **What changed** — [OpenAI released Sol and Luna](https://openai.com/index/introducing-gpt-6-sol-and-luna/) in ChatGPT Work and Codex. Sol is aimed at harder tasks; Luna is built for shorter, higher-volume work. - **Who gets it** — Both are rolling out to Plus, Pro, Business, Enterprise and Edu in Work and Codex, not regular Chat. Free and Go users can try Luna in the desktop app. - **Your move** — Try a familiar task on a model you already have. Keep the version that needs fewer corrections before changing plans. Go deeper [OpenAI access ↗](https://openai.com/index/introducing-gpt-6-sol-and-luna/) 04 Gmail ## Ask Gmail a question across your messages September 15 global expansion · September 21 scheduled rollout · checked September 26 [Official source ↗](https://workspaceupdates.googleblog.com/2026/09/gmail-searchs-ai-overviews-now-available-globally.html) [![Official Gmail screenshot showing an AI Overview for a contract-status search with linked email citations](https://blog.dvx.ventures/signals/at-work/007/evidence/gmail-ai-overview.jpg)](https://workspace.google.com/blog/product-announcements/more-personalized-and-proactive-assistance-in-gmail-coming-to-business-customers) *Google’s Gmail example shows a contract answer with numbered email citations. The image predates September’s wider rollout. [View source ↗](https://workspace.google.com/blog/product-announcements/more-personalized-and-proactive-assistance-in-gmail-coming-to-business-customers)* - **What it does** — [Gmail search AI Overviews](https://workspaceupdates.googleblog.com/2026/09/gmail-searchs-ai-overviews-now-available-globally.html) answer natural-language questions from your mail. The example above pulls a contract status and shows messages behind the answer. - **Who gets it** — The expansion covers eligible paid Workspace plans globally when Gmail is set to English and smart features are on. Personal AI Plus, Pro and Ultra accounts are excluded in the EEA, UK, Switzerland and Japan. - **Your move** — Ask for the status of a project you already know. Open the cited messages before relying on dates, amounts or decisions. Go deeper [Rollout and plan list ↗](https://workspaceupdates.googleblog.com/2026/09/gmail-searchs-ai-overviews-now-available-globally.html) Also since the last issue ## Useful updates ### New Gemini connections [Google’s September 23 rollout](https://blog.google/innovation-and-ai/products/gemini-app/new-connected-apps-gemini/) adds apps including Airtable, Linear and monday.com. Check the connected-app permissions before using company data. ### ChatGPT Voice connections [OpenAI’s September 23 release notes](https://help.openai.com/en/articles/6825453-chatgpt-release-notes) say Voice can use enabled plugins and connected apps on web, iOS and Android. Workspace permissions still apply. ### ChatGPT in Word [OpenAI’s September 17 update](https://help.openai.com/en/articles/6825453-chatgpt-release-notes) adds a Word sidebar for drafting, summarizing and revisions. It is on all ChatGPT plans, with normal usage limits. --- *Source: https://blog.dvx.ventures/signals/new-models-gemini-voices-gmail-search — DVx Blog, published by [DVx Ventures](https://dvx.ventures).*