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Voice AI · PROFILE REVIEWED 19 SEPTEMBER 2026

Gemini 3.8 Live

Google's latency-led live model is the default candidate for most real-time voice-agent pilots. Its published per-minute audio rate is only a component price, so HubAI withholds a score until interruption quality, accepted-call completion, language coverage, recovery and complete cost are tested independently.

BEST FORLow-latency voice and vision agents where interruption handling, live context and background tool calls matterNOT IDEAL FORKnown foundation-model errors, occasional slowness and timeouts still apply
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Price
$0.005/min audio input and $0.018/min audio output at the published standard API rate; text, image/video, grounding and the surrounding call stack may add cost · Profile record only; separate pricing check not recorded: 19 September 2026. USD list price; UK price/VAT to confirm.
Access
A free Gemini API tier is listed; quotas, account eligibility and product-surface availability vary
EDITORIAL PROFILEIndependently structuredPRICING CHECKSeparate check not recordedDISCLOSURENo pay-to-win score
BEFORE YOU BUY

Gemini 3.8 Live: evidence before purchase

What we can verify

Supplier information and independent test results are separate. Check the linked product and pricing sources before purchase.

What an independent test needs to cover

Test output accuracy, retries, reviewer effort, data handling and total cost using the pilot below. No completion date is scheduled; a score will require a published method and results.

Supplier facts recorded
19 September 2026
Recheck required: more than 30 days since check. This is not an independent test date.
Methodology checked on

Price and UK access check

$0.005/min audio input and $0.018/min audio output at the published standard API rate; text, image/video, grounding and the surrounding call stack may add cost · Profile record only; separate pricing check not recorded: 19 September 2026. USD list price; UK price/VAT to confirm.

Pricing freshness: Check date not recorded.

VERIFIED CHANGE HISTORY

What changed for Gemini 3.8 Live.

Open Change Radar →
Launch

Google releases Gemini 3.8 Live and Extended Thinking

Voice-agent teams now have a latency-led default and a deeper-reasoning option at published API rates, but complete resolved-call cost and quality still require a same-flow test.

Google launch announcement ↗
EDITOR VERDICT

Google's latency-led live model is the default candidate for most real-time voice-agent pilots. Its published per-minute audio rate is only a component price, so HubAI withholds a score until interruption quality, accepted-call completion, language coverage, recovery and complete cost are tested independently.

WHAT IT IS

Gemini 3.8 Live, explained.

Gemini 3.8 Live is designed for low-latency voice and vision agents where interruption handling, live context and background tool calls matter. HubAI treats it as a workflow purchase rather than a novelty: the relevant question is whether it produces an acceptable result repeatedly, with controls your team can understand and a cost that remains predictable after the trial ends.

Best forLow-latency voice and vision agents where interruption handling, live context and background tool calls matterTrialA free Gemini API tier is listed; quotas, account eligibility and product-surface availability vary
60-SECOND BUYING DECISION

Where Gemini 3.8 Live fits—and where it does not.

BUY FOR

Low-latency voice and vision agents where interruption handling, live context and background tool calls matter

MEASURE

approved minutes of natural, correctly pronounced audio with documented voice rights

MAIN TRADE-OFF

Known foundation-model errors, occasional slowness and timeouts still apply

PROOF TEST

Use one approved 60-second script containing names, numbers and difficult pronunciation.

PRODUCT PROOF

See the workflow before you buy.

PROFILE REVIEW · 19 SEPTEMBER 2026
GLGoogle AI Studio and the official Gemini Live API examples; model code gemini-3.8-live
01

Bring one representative input

02

Run the same job three times

03

Measure accepted output and cost

HUBAI TEST CONSOLE · VOICE AI
DATA & PRIVACY

The Developer API pricing page distinguishes the free tier, whose submitted content may be used to improve products, from the paid tier, whose submitted content is not. Verify the contracted Google Cloud or Gemini route, retention, logging, recording consent and administrator controls before using customer conversations or sensitive visual context.

DEPLOYMENT

gemini-3.8-live through the Gemini API and Google AI Studio. The Live API uses stateful WebSockets, supports audio, image and text input, and recommends ephemeral tokens for production client-to-server connections. Consumer, Workspace and enterprise availability varies by route and rollout.

WORKS WITH

Gemini Live API · Google AI Studio · Function calling · Google Search grounding · WebSocket media stack

EDITORIAL STATUS

Vendor facts and HubAI opinion are separated. Sponsored placement cannot buy a higher score.

HUBAI PROCUREMENT PASSPORT

A buying record your team can challenge.

One compact record for price, access, data handling, deployment and the test that must pass before adoption.

BUY FORLow-latency voice and vision agents where interruption handling, live context and background tool calls matterCOMMERCIAL ROUTE$0.005/min audio input and $0.018/min audio output at the published standard API rate; text, image/video, grounding and the surrounding call stack may add cost · Profile record only; separate pricing check not recorded: 19 September 2026. USD list price; UK price/VAT to confirm.A free Gemini API tier is listed; quotas, account eligibility and product-surface availability vary
DATA & PRIVACYNeeds buyer verification

The Developer API pricing page distinguishes the free tier, whose submitted content may be used to improve products, from the paid tier, whose submitted content is not. Verify the contracted Google Cloud or Gemini route, retention, logging, recording consent and administrator controls before using customer conversations or sensitive visual context.

DEPLOYMENTRoute mapped

gemini-3.8-live through the Gemini API and Google AI Studio. The Live API uses stateful WebSockets, supports audio, image and text input, and recommends ephemeral tokens for production client-to-server connections. Consumer, Workspace and enterprise availability varies by route and rollout.

INTEGRATIONS5 named routes

Gemini Live API · Google AI Studio · Function calling · Google Search grounding · WebSocket media stack

PROOF TESTRequired before scale

Run a fixed set of representative calls against both Gemini routes and one alternative. Record task completion, interruption recovery, language and accent errors, tool failures, timeout recovery, escalation time and every provider, telephony and infrastructure charge.

Official-source facts HubAI editorial judgement Buyer verification still requiredProfile checked 19 September 2026
STRENGTHS

What earns its shortlist place.

+01

Streams voice and visual context with interruption support

Why it matters: reduces narration turnaround.

+02

Can continue the conversation while asynchronous tool calls run

Why it matters: enables multilingual variants.

+03

Published API model code, free tier and standard audio rates

Why it matters: makes tone testing faster.

LIMITATIONS

What can break the business case.

−01

Known foundation-model errors, occasional slowness and timeouts still apply

Buyer impact: creates material consent and misuse risk.

−02

Published language figures differ by feature and must be checked for the intended flow

Buyer impact: pronunciation corrections consume allowance.

−03

Telephony, infrastructure, grounding, tools and human escalation can exceed the headline audio rate

Buyer impact: does not replace professional audio finishing.

Cost reality

The subscription price is only the starting point. HubAI evaluates usage limits, failed attempts and the work needed to produce one usable result. Pricing changes frequently, so the structure and verification date matter more than a headline price.

PRICING DECODER

Budget for the result, not the plan badge.

Published structure
$0.005/min audio input and $0.018/min audio output at the published standard API rate; text, image/video, grounding and the surrounding call stack may add cost · Profile record only; separate pricing check not recorded: 19 September 2026. USD list price; UK price/VAT to confirm.
Free or trial route
A free Gemini API tier is listed; quotas, account eligibility and product-surface availability vary
Primary cost driver
characters or generated minutes, voice tier, dubbing languages and retakes
Budget test
Record the total cost, attempts and human correction needed to produce ten accepted results.

Separate pricing check date: not recorded. Profile review: 19 September 2026. Confirm live price, VAT, region, usage rights and cancellation terms with the vendor before purchase.

HUBAI TRUE COST LAB

What does one accepted result really cost?

Model your own usage. HubAI separates subscription cost from retries and human review—without pretending a headline plan price tells the whole story.

DERIVED VALUE · EFFECTIVE COST / ACCEPTED OUTPUT£3.414286Human review dominates
Expected accepted outputs70
Expected unaccepted attempts30
Cost compositionper accepted output
Software £0.414286Human review £3.00Overhead £0.00
Human review minutes apply to accepted outputs only. Include review of unsuccessful attempts in monthly overhead. Evidence labels: the published price reference is SOURCE DATA; every editable number is USER INPUT / ASSUMPTION; totals are DERIVED VALUES. Run a representative batch and count only outputs your team would genuinely publish or use. This scenario is not a vendor quote or financial advice.
PRACTICAL GUIDE

Where Gemini 3.8 Live earns its place.

01

Complete a repeatable voice ai task

Test this job with your own inputs and judge the finished result—not the first draft.

02

Create a first draft for human review

Test this job with your own inputs and judge the finished result—not the first draft.

03

Compare time and cost against the current workflow

Test this job with your own inputs and judge the finished result—not the first draft.

A safer four-step trial

  1. Start with one narrow job that matches Gemini 3.8 Live's strongest use case.
  2. Prepare approved source material, examples and a clear acceptance standard.
  3. Run three realistic tasks and record attempts, correction time and export quality.
  4. Keep human approval before publishing, sending or acting on the result.
READY-TO-USE PROMPTS

Start with a better brief.

01Act as a specialist in voice ai. Ask me three questions before creating the first draft. The outcome I need is: [describe outcome].
02Create two approaches for [task]. Use this audience: [audience]. Respect these constraints: [constraints]. Explain the trade-off between the two approaches.
03Review this output against accuracy, tone, privacy, cost and usability. List the changes required before a person should approve it.
RISK & GOVERNANCE

What to check before adoption.

Do not place confidential, personal or rights-restricted material into Gemini 3.8 Live until your organisation has reviewed its current terms, retention settings and account controls. AI output can be plausible and still wrong; regulated, financial, legal and employment decisions require qualified human review.

HUBAI REVIEW RECORD

What HubAI checked—and when.

This is HubAI's editorial record, not the vendor's product changelog or a live uptime claim.

04 SEP 2026

Decision layer expanded

Use-case routes, relevant comparisons and alternatives connected to the product profile.

03 SEP 2026

Commercial profile reviewed

Entry price structure, free or trial route and buyer limitations checked for editorial use.

19 September 2026

Editorial profile published

Verdict, best fit, strengths, limitations, prompts and governance questions structured.

ALSO SHORTLIST

Alternatives to Gemini 3.8 Live

QUICK COMPARISON

Gemini 3.8 Live against its closest shelf.

Scores are editorial signals, not a universal winner. Choose around the exact job and run the same proof test.

ProductHubAI scoreBest forPrice structureAccessDecision
Gemini 3.8 Live CURRENTLow-latency voice and vision agents where interruption handling, live context and background tool calls matter$0.005/min audio input and $0.018/min audio output at the published standard API rate; text, image/video, grounding and the surrounding call stack may add cost · Profile record only; separate pricing check not recorded: 19 September 2026. USD list price; UK price/VAT to confirm.A free Gemini API tier is listed; quotas, account eligibility and product-surface availability varyCurrent profile
Microsoft MAI Speech 2.1Teams evaluating real-time transcription and multilingual speech generation through Microsoft Foundry or Azure SpeechMAI-Transcribe-2-Streaming: introductory $0.54 per audio hour through the end of 2026; MAI-Voice-2.1: $22 per 1M characters; MAI-Voice-2.1-Flash: $15 per 1M characters · Profile record only; separate pricing check not recorded: 2 October 2026. USD list price; UK price/VAT to confirm.Public preview without an SLA; Foundry playground and Azure routes require an eligible account and resource. Voice models are documented as globally accessible, with en-GB voices and European serving regionsCompare →
Gemini 3.8 Live Extended ThinkingHigher-complexity live conversations that need background reasoning and multi-step tool coordination without a silent pause$0.005/min audio input and $0.018/min audio output at the published standard API rate; thinking is included in output pricing and complete workflow cost can be higher · Profile record only; separate pricing check not recorded: 19 September 2026. USD list price; UK price/VAT to confirm.A free Gemini API tier is listed; enterprise access begins in private preview and Workspace or consumer access depends on plan and rolloutCompare →
GPT-Live-1Natural real-time voice agents that need interruption handling, long sessions and delegated reasoning or tool use$0.05 per minute for the front-end voice layer; backend models, tools, telephony and infrastructure are additional · Profile record only; separate pricing check not recorded: 11 September 2026. USD list price; UK price/VAT to confirm.No separate API free trial announced; a time-limited official web demo is availableCompare →
PROCUREMENT CHECKLIST

Questions to answer before adoption.

  1. 01Whose consent is required for this voice?
  2. 02Can cloned voices be revoked or deleted?
  3. 03Which commercial rights follow the plan?
  4. 04What does a corrected finished minute cost?
COMMON BUYER QUESTIONS

Gemini 3.8 Live FAQ.

What is Gemini 3.8 Live best for?

Gemini 3.8 Live is best suited to low-latency voice and vision agents where interruption handling, live context and background tool calls matter. HubAI's current verdict is: Google's latency-led live model is the default candidate for most real-time voice-agent pilots. Its published per-minute audio rate is only a component price, so HubAI withholds a score until interruption quality, accepted-call completion, language coverage, recovery and complete cost are tested independently.

Does Gemini 3.8 Live have a free plan or trial?

A free Gemini API tier is listed; quotas, account eligibility and product-surface availability vary. Check the official product page before buying because allowances, regions and eligibility can change.

How much does Gemini 3.8 Live cost?

$0.005/min audio input and $0.018/min audio output at the published standard API rate; text, image/video, grounding and the surrounding call stack may add cost · Profile record only; separate pricing check not recorded: 19 September 2026. USD list price; UK price/VAT to confirm.. The useful comparison is total cost per accepted result, including retries, limits and human correction—not the advertised entry price alone.

What should I compare with Gemini 3.8 Live?

Compare products in the same Audio AI shelf against one identical task, acceptance rule and cost window. Focus on approved minutes of natural, correctly pronounced audio with documented voice rights.