Google AI Studio text to speech turns a script into natural-sounding audio in your browser, for free, and since September 22, 2026 it runs on two new Gemini TTS models: Gemini 3.8 Flash TTS and the cheaper Gemini 3.8 Flash-Lite TTS. This review explains what the free tier really covers, what the API costs per hour of audio, what happens to the old version on November 17, and whether you can use the audio commercially.
⚡ TL;DR: The Bottom Line
What It Is: The speech page in Google AI Studio (aistudio.google.com/generate-speech), where you type a script, pick or design a voice, direct the delivery in plain English and get a WAV file back.
Best For: Narration, two-host podcast drafts, voiceovers on a budget and developers who want to try Gemini TTS before building with it.
Price: Free in AI Studio unless you link a paid API key. On the paid API, Gemini 3.8 Flash TTS costs $0.50 per 1M text tokens and $9 per 1M audio tokens until December 31, 2026, then $1 and $18.
Our Take: Based on Google’s documented features and prices, it costs far less per hour of audio than subscription voice tools, and voice cloning is now included.
⚠️ The Catch: On the free tier Google may use your text and audio to improve its products, prices double on January 1, 2027, and the older 2.5 and 3.1 TTS models can be switched off from November 17, 2026.
📑 Quick Navigation
🎯 The Bottom Line: Google AI Studio Text to Speech in October 2026
Google AI Studio text to speech costs nothing to try, and the new Gemini 3.8 Flash TTS model costs far less per hour than subscription voice tools: about $0.81 of audio output per hour of speech based on Google’s per-10-second price, until the price doubles in January. You can now design a voice from a description or clone one from a 30-second sample, except in a few regions. Choose it for narration, two-voice dialogue and app prototypes. Skip it if you want a polished audio editor and a large voice marketplace: our ElevenLabs pricing guide covers that route, and our Qwen3-TTS review covers the free open-source one.
⏱️ What Changed Since May: Gemini 3.8 TTS Replaces the Previews
Our May version described Gemini 3.1 Flash TTS as the newest model and said Google’s voice cloning needed a sales contact. Both statements are out of date. According to Google’s Gemini API changelog, September 22, 2026 brought:
- Gemini 3.8 Flash TTS, which Google calls its “Flagship creative TTS model engineered for studio-grade voice fidelity, nuanced acting, regional dialects”.
- Gemini 3.8 Flash-Lite TTS, a faster, cheaper model “built to replace gemini-3.1-flash-tts-preview”, aimed at high-volume work and voice agents.
- Voice design and voice replication: create a custom voice from a text description, or copy a real voice with the owner’s recorded consent, through a new Voices endpoint.
Both models are generally available, not previews, and Google’s launch post of September 23 says they also power Gemini Notebook (Flash TTS) and Google Vids (Flash-Lite TTS). So if you use Gemini Notebook (Google renamed NotebookLM to Gemini Notebook on July 16, 2026; see our NotebookLM review) or Google Vids (see our Google Vids review), the speech there comes from the same models, according to Google.
Google AI Studio text to speech old version: what happens on November 17
The old version is the trio of preview models: Gemini 2.5 Flash Preview TTS, Gemini 2.5 Pro Preview TTS and Gemini 3.1 Flash TTS Preview. Google’s deprecations page gives all three a shutdown date of November 17, 2026 and names Gemini 3.8 Flash TTS or Flash-Lite TTS as the replacement. Google adds that these are the earliest possible retirement dates and that it will announce exact dates in advance.
So if you searched for the Google AI Studio text to speech 2.5 models because a tutorial or an old bookmark such as aistudio.google.com/generate-speech?model=gemini-2.5-pro-preview-tts points there, plan your move now. Apps that call those model names will need a new name before mid-November, and Google is separately limiting access to older 2.5 models for accounts that have not used them before, according to a September 18 changelog entry (that entry does not name the TTS models specifically).
🔍 REALITY CHECK
Marketing Claims: “Access 2,000+ production-ready voices with broad language coverage,” says Google’s launch post.
What It Really Means: Google’s speech generation guide lists 30 prebuilt voices, and the changelog describes an Extended Voice Library of 150+ prebuilt and custom voices. The 2,000+ figure is the launch post’s own number; the developer docs we read do not show where the rest live.
Verdict: Plan around the 30 named voices plus any you design yourself. Treat the 2,000+ as a marketing ceiling, not a menu.
🎙️ What Google AI Studio Text to Speech Actually Is
Think of it as a recording booth with a voice actor who never gets tired. You hand over a script, tell the actor how to read it (“warm, slow, a little amused”), and get an audio file back. The booth is a free web page inside Google AI Studio, Google’s playground for developers, and the actor is one of Google AI Studio’s Gemini TTS models.
If you searched for a Google TTS studio, this is it. Google’s own speech generation guide sends developers there: “You may find it useful to test the Gemini TTS models in AI Studio before you start building.” The same models then run through the paid Gemini API, so the browser is a fair preview of what an app built on the API would produce. For everything else AI Studio does (text, images, video), see our Google AI Studio review, which also covers the text models’ free tier limits.
What it is not: a voice marketplace with thousands of community voices, a timeline editor for long audiobooks, or a live voice assistant. Google sells live conversation separately through its Live API, which has its own price list, and a TTS model cannot hold a conversation: the model page lists no Live API support.
🚀 Your First Five Minutes on aistudio.google.com/generate-speech
Here is the path, using what Google’s docs and launch post describe. Nothing to install, and you need a Google account and to be 18 or older, per the Gemini API terms.
- Open the speech page. Go to https://aistudio.google.com/generate-speech and sign in. Google’s billing page says “AI Studio usage remains free of charge unless users link a paid API key”.
- Pick a model. Gemini 3.8 Flash TTS for expressive narration and character work, Flash-Lite TTS when you need lots of audio cheaply.
- Pick a voice. Start with one of the 30 prebuilt voices, each tagged with a one-word style: Zephyr is “Bright”, Puck “Upbeat”, Charon “Informative”, Kore “Firm”, Sulafat “Warm”.
- Direct the read. Describe the delivery in plain words, then drop in sound cues such as <laugh> or <short pause> where you want them.
- Add a second voice if you need one. Google’s launch post describes a dual-speaker screenplay editor in AI Studio for directing a conversation line by line.
- Move to the API when it works. Link a paid key (prepaid credit starts at $5) and the same models run from your code.
🔑 Features That Matter
Directing the voice in plain English
Most voice tools give you a slider for speed and a dropdown for mood. Gemini TTS takes stage directions instead: the speech guide shows a whole turn read in a style such as “whispered urgently”, with single moments marked inline. Our May version showed these cues in square brackets like [laughter]; Google’s current guide uses angle brackets, <laugh>, <sigh>, <short pause>, and says “Use angle brackets (<…>) for highest audio quality.” If you copied a prompt from an older tutorial, switch the brackets.
Multi-speaker audio: two voices per request
Google AI Studio multi speaker audio is how you get a two-host podcast draft from one script. The speech guide caps a single request at two speakers using prebuilt voices, not the 2-4 we listed in May. Google calls the feature “Native two-speaker scene staging”. Custom voices in a conversation have to be generated turn by turn, so a three-person audio drama means stitching clips together.
The Google AI Studio voice library: 30 prebuilt voices, plus your own
The library starts with the 30 named voices in the speech guide. On top of that, voice design lets you “Generate a custom vocal persona from a natural-language description” (say, “a gravelly sports commentator in his sixties”), and the model page confirms you can design and replicate voices interactively in AI Studio. Saved voices are limited to 200 per project and are deleted after a year without use; quick, unsaved voice keys last 7 days. Only the two 3.8 models support custom voices.
Voice cloning (Google calls it voice replication)
This is the biggest change for creators. Google’s launch post says Flash TTS can recreate a voice “from just a 30-second audio sample of your voice”, provided the voice owner also records a spoken consent statement. A developer walkthrough by Philipp Schmid adds that “The consent sentence must be one of the 25 supported versions” and has to be read exactly. Every clip from Google’s audio models carries a SynthID watermark, and replicated voices also get C2PA content credentials.
🔍 REALITY CHECK
Marketing Claims: Clone a voice “from just a 30-second audio sample of your voice.”
What It Really Means: The same launch post says “Voice replication through AI Studio is not available in Illinois, Texas, EEA, UK, Switzerland, and India.” The voice owner must also record a consent statement, so you cannot clone a voice from a clip you found online.
Verdict: Real, self-serve and cheap if you live outside those regions and are cloning your own voice. Everyone else should look at ElevenLabs or Qwen3-TTS.
130+ languages, detected automatically
The speech guide says Gemini 3.8 Flash TTS “supports over 130 languages” and Flash-Lite TTS over 100; the launch post rounds both to “over 100”. You do not pick a language: you write the script in it. That replaces the “70+ languages” in our May version.
Output: WAV files, streaming and long scripts
A normal request returns a WAV file at 24 kHz, mono, 16-bit, which any video editor opens. Streaming returns raw audio as it is generated, useful when an app should start talking before the whole clip is ready. The Flash TTS model page lists an input limit of 8,192 tokens per request, so a full audiobook chapter goes in as several requests, not one.
💡 Key Takeaway: If you are starting today, use Gemini 3.8 Flash TTS or Flash-Lite TTS, write sound cues in angle brackets, keep dialogue to two prebuilt voices per request, and split long scripts into chunks. Anything built on the 2.5 or 3.1 previews needs moving before November 17.
💰 Gemini TTS Pricing: What You’ll Actually Pay
There are two ways to pay, and most people only need the first. In AI Studio, speech generation is free unless you link a paid API key. On the API, you pay per token: a token is a small slice of text going in or of audio coming out, and audio tokens cost far more. These are the prices on Google’s Gemini API pricing page, read on October 17, 2026:
| Model | Free tier | Text in, per 1M tokens | Audio out, per 1M tokens | Shutdown |
|---|---|---|---|---|
| Gemini 3.8 Flash TTS (GA) | Yes | $0.50 ($1.00 from Jan 1, 2027) | $9.00 ($18.00 from Jan 1, 2027) | None announced |
| Gemini 3.8 Flash-Lite TTS (GA) | Yes | $0.50 ($1.00 from Jan 1, 2027) | $6.00 ($12.00 from Jan 1, 2027) | None announced |
| Gemini 3.1 Flash TTS Preview | Yes | $1.00 | $20.00 | November 17, 2026 |
| Gemini 2.5 Flash Preview TTS | Yes | $0.50 | $10.00 | November 17, 2026 |
| Gemini 2.5 Pro Preview TTS | No | $1.00 | $20.00 | November 17, 2026 |
Three things stand out. The newest model is also the cheapest per audio token among the full-size models: $9.00 against $20.00 for the old 2.5 Pro and 3.1 previews, less than half. Batch requests, where you wait for results instead of getting them instantly, cost half: $4.50 per 1M audio tokens on Flash TTS and $3.00 on Flash-Lite until December 31. And the launch prices end on January 1, 2027, when every 3.8 TTS price doubles.
📊 Gemini TTS Audio Output Price Per 1M Tokens: Now vs January 2027 (USD)
What does an hour of Gemini TTS audio cost?
Google’s pricing page says audio tokens correspond to 25 tokens per second of audio and lists Flash TTS output at $0.00225 per 10 seconds. An hour of speech is therefore 90,000 audio tokens, and the audio output costs:
- Gemini 3.8 Flash-Lite TTS: about $0.54 an hour now, $1.08 from January 2027.
- Gemini 3.8 Flash TTS: about $0.81 an hour now, $1.62 from January 2027.
- 2.5 Flash Preview TTS: about $0.90 an hour; 3.1 Flash TTS Preview and 2.5 Pro Preview TTS: about $1.80.
The text you send is billed on top at the much lower input rate. The 3.8 figures follow from Google’s own per-10-second prices, and the 3.1 figure from the 25 tokens a second Google states for that model; the 2.5 figures are our estimate at the same 25 tokens a second, which Google does not state for those models. Check your billing page after the first real project.
🔍 REALITY CHECK
Marketing Claims: The free tier for the 3.8 TTS models is listed as “Free of charge.”
What It Really Means: The same pricing table marks free-tier content as used to improve Google’s products. The Gemini API terms add that human reviewers may read your free-tier input and output, and say “Do not submit sensitive, confidential, or personal information to the Unpaid Services.” On the paid tier, Google says it does not use your prompts or responses that way.
Verdict: Free is fine for a YouTube script. Client scripts, unreleased books or anything personal belong on a paid key.
Free tier limits and what a paid key changes
Google does not publish fixed free-tier numbers for the TTS models. Its rate-limits page tells you to view your active limits in AI Studio, applies them per project rather than per API key, resets daily quotas at midnight Pacific time, and warns that preview models get tighter limits. Going paid means prepaying credit: the billing page sets a $5 minimum and a $5,000 maximum, and unused credit expires after 12 months. Once a paid key is linked, your AI Studio usage with that key is billed too.
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⚖️ Gemini TTS vs ElevenLabs vs Qwen3-TTS
The three realistic choices in October 2026 are Google’s pay-per-token models, ElevenLabs’ monthly plans and the open-source Qwen3-TTS you run yourself. Same criteria for each:
| Gemini TTS (AI Studio / API) | ElevenLabs | Qwen3-TTS | |
|---|---|---|---|
| Free option | Free in AI Studio; API free tier on every model except 2.5 Pro | Free plan: 10k credits, about 10 minutes, no commercial license | Free, open source (Apache-2.0), on your own hardware |
| Paid price | Per token: $9 per 1M audio tokens on Flash TTS (about $0.81 an hour at Google’s per-10-second price) | Starter $6, Creator $22 (about 121 minutes), Pro $99 (about 600 minutes) a month | Your hardware and time |
| Voice cloning | 30-second sample plus consent; not via AI Studio in Illinois, Texas, EEA, UK, Switzerland, India | Instant cloning from Starter, Professional cloning from Creator | 3-second clone with the Base model |
| Languages | 130+ (Flash TTS), 100+ (Flash-Lite) | 74 in the plan table | 10 major languages |
| Best for | Developers, budget narration, two-voice dialogue | Creators who want an editor, cloning and a big voice library | Self-hosting and privacy |
The money gap is large when you produce a lot of audio. Suppose you narrate 10 hours a month, about 600 minutes:
📊 Estimated Monthly Cost of 10 Hours of Narration (USD)
That gap buys something. ElevenLabs gives you a finished product: a commercial license from the $6 Starter plan and Instant Voice Cloning on the same plan. Gemini gives you raw audio and leaves the editing to you. If you only need a few voices for an app, Fish Audio is another budget option worth a look.
👤 Who Should Use Google AI Studio TTS (and Who Shouldn’t)
Choose it if: you need a Google AI Studio voiceover for a YouTube video or a course and can live with downloading a WAV and editing elsewhere; you want a two-host podcast draft from one script; you are a developer pricing voice for an app, since Flash-Lite TTS is the cheapest per audio token; or you want to clone your own voice cheaply and live outside the excluded regions.
Stick with ElevenLabs if: you want a finished app with Instant Voice Cloning from the $6 Starter plan up and Professional Voice Cloning from the $22 Creator plan; Google’s AI Studio cloning is not offered in the UK, EEA, Switzerland, India, Illinois or Texas.
Skip it if: your scripts are confidential and you will not pay for an API key, or you need audio that never leaves your own machine (Qwen3-TTS). If you want an on-screen presenter rather than a voice, see our HeyGen review; for more no-cost options, our free AI tools roundup lists what each free plan includes.
⚠️ Limitations You Need to Know
- The old models have a deadline. 2.5 Flash, 2.5 Pro and 3.1 Flash TTS previews can be shut down from November 17, 2026.
- The launch price is temporary. Every 3.8 TTS price doubles on January 1, 2027.
- Two prebuilt voices per request. Bigger casts and custom-voice dialogues are built turn by turn.
- Long scripts need splitting. Flash TTS accepts up to 8,192 input tokens per request.
- Cloning has regional gaps in AI Studio, and it always needs the voice owner’s spoken consent.
- No published free limits. You see your limits inside AI Studio; Google lists TTS prices per 1M tokens and per 10 seconds of audio, not per hour.
- Free-tier privacy. Free-tier content can be used to improve Google’s products and read by human reviewers.
💬 What Users Are Saying
The 3.8 models are less than a month old, so there is not much user feedback yet. The clearest collection is in eesel AI’s review, which quotes the Hacker News discussion after the launch. Three camps show up:
- The “it’s practically free” camp: developer Simon Willison wrote that “most of my experiments have cost less than a cent”.
- The “they all sound alike” camp: one commenter said “The voices which are available all sound like generic Gemini voices to me.”
- The “direction is hit and miss” camp: another, writing about an earlier Gemini TTS release, said AI Studio never followed their written audio profile, and the reviewer sums direction up as “a prompt, not a guarantee”, so budget for a few regenerations.
One caution on the benchmark charts in Google’s launch post: the same review points out that Hume’s founder is credited on Google’s announcement, and the charts use Hume’s own leaderboard. That does not make the scores wrong, but it is not an independent test.
💡 Key Takeaway: Expect cheap, good audio that sometimes ignores your direction. Generate two or three takes of the lines that matter, and design a custom voice if the prebuilt 30 sound too familiar for your project.
❓ FAQs: Your Questions Answered
Q: Is Google AI Studio native speech generation free?
A: Yes. Speech generation in AI Studio is free unless you link a paid API key, and the API’s free tier covers every current TTS model except Gemini 2.5 Pro Preview TTS. Rate limits apply and are shown inside AI Studio.
Q: Is Google AI Studio text to speech free for commercial use?
A: The Gemini API terms we read do not forbid it. They have no clause restricting commercial use of free-tier output, say “Google won’t claim ownership over that content”, and describe AI Studio as being for professional or business purposes. Three catches: free-tier content can be used to improve Google’s products and read by human reviewers; apps serving users in the EEA, Switzerland or the UK must use the paid service; and every clip carries a SynthID watermark. You must still follow Google’s Prohibited Use Policy, and you are responsible for how the audio is used. Our May version said free output was not licensed for commercial use; the current terms do not say that. This is not legal advice, so check the Gemini API terms yourself for anything big.
Q: What happened to the old version of Google AI Studio text to speech?
A: It is being retired. Gemini 2.5 Flash Preview TTS, 2.5 Pro Preview TTS and 3.1 Flash TTS Preview have a November 17, 2026 shutdown date, and Google points to Gemini 3.8 Flash TTS or Flash-Lite TTS instead.
Q: What is aistudio.google.com/generate-speech?
A: It is the address of the speech page in Google AI Studio, the one Google’s speech generation guide links to for trying the Gemini TTS models before you build with the API.
Q: Do I need to download or purchase anything to use the Google AI Studio voice generator?
A: No. It runs in the browser with a Google account and costs nothing until you link a paid API key. Paid API use starts with a $5 credit prepayment.
Q: Can I clone my voice with Google AI Studio?
A: Yes, unless you are in Illinois, Texas, the EEA, the UK, Switzerland or India. Gemini 3.8 Flash TTS and Flash-Lite TTS can replicate a voice from a 30-second sample plus a recorded consent statement, but not through AI Studio in those regions.
Q: How much does Gemini TTS cost per hour of audio?
A: About $0.81 for Gemini 3.8 Flash TTS and $0.54 for Flash-Lite TTS in audio output, based on Google’s listed $0.00225 and $0.0015 per 10 seconds of audio. Both double from January 1, 2027. Text input is billed on top.
Q: How many voices and languages does Gemini TTS support?
A: 30 prebuilt voices plus custom voices you design or replicate, and over 130 languages on Gemini 3.8 Flash TTS (over 100 on Flash-Lite). The language is detected from your script.
✅ Final Verdict: Is Google AI Studio Text to Speech Worth It?
Yes, for most people who need spoken audio and are willing to do their own editing. The free tier lets you hear exactly what you would pay for, and the 3.8 models made the paid side both cheaper and more capable: Flash TTS costs less than half the old 2.5 Pro and 3.1 previews per audio token, covers 130+ languages, and now designs and clones voices without a sales call.
The catches are timing and polish. Prices double in January, the old models can go dark from November 17, cloning has regional gaps, and there is no editor beyond the screenplay view. If that matters more than price, ElevenLabs is the finished product. If price matters most, start free at aistudio.google.com/generate-speech and only link a paid key when the free limits get in your way.
✅ What We Liked
- ✓ Free in AI Studio until you link a paid API key
- ✓ Flash TTS audio at $9 per 1M tokens, under half the old 2.5 Pro and 3.1 previews
- ✓ Voice design and 30-second voice cloning, self-serve
- ✓ 130+ languages on Flash TTS
- ✓ Plain-English direction plus <laugh> and <short pause> cues
❌ What Fell Short
- ✗ Prices double on January 1, 2027
- ✗ Old 2.5 and 3.1 models end from November 17, 2026
- ✗ Cloning not in AI Studio in the EEA, UK, India and more
- ✗ Only two prebuilt voices per request
- ✗ Free-tier content can be used to improve Google’s products
Founder of AI Tool Analysis. Reads every pricing page, help article and footnote so you don’t have to. Covering AI tools since 2025. See how we research →
📚 Related Reading
- Google AI Studio Review: What Is Still Free and What Costs Money
- ElevenLabs Pricing 2026: Every Plan, and Is It Worth It?
- Qwen3-TTS Review 2026
- Fish Audio Review 2026
- NotebookLM (Gemini Notebook) Review 2026
- Google Vids Review 2026
- Google Gemini Review 2026
- Google AI Pro Free for Students (2026)
- Free AI Tools 2026: What 13 Free Plans Really Give You
Stay Updated on AI Voice Tools
AI voice prices and models change every few weeks: new TTS models, shutdown dates, cloning rules and launch prices that expire. Don’t miss the next change that affects your bill.
- ✅ Sourced Breakdowns: We read the pricing pages, docs and terms, not press releases
- ✅ Price Tracking: Know when launch prices end or free tiers change
- ✅ Model Launches: Gemini TTS, ElevenLabs and open-source voice updates covered within days
- ✅ Shutdown Alerts: Know before the model you rely on is retired
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Last Updated: October 17, 2026
Facts checked: October 17, 2026 (Gemini API pricing, speech generation, deprecations, billing, rate-limit and terms pages, changelog, model page, Google’s launch post, ElevenLabs pricing page)
Next Review Update: November 17, 2026 (the shutdown date for the older TTS models)
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