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Hopper

● Identity checked

Voice · Vendor site 2026-10-04

Hopper builds fast inference for voice agents by training and serving custom STT, TTS, and speech LLMs on a customer’s production calls. The company compares its models on latency and token cost versus general-purpose LLMs and offers engineering-led onboarding for voice stacks.

Updated 2026-10-04View sources
Official website
Category
Voice
Free access
Not confirmed
API access
Not confirmed

Is Hopper right for you?

A good fit for

Teams running production voice agents who need low-latency speech models tuned on their own call traffic.

Before you choose

Homepage highlights benchmarked latency and token pricing but does not publish named monthly subscription plans.

Fast inference for voice

Hopper trains and serves speech models on your production calls to cut voice-agent latency and inference cost compared with general LLM stacks.

What it can do

Features & capabilities

Unknown is different from unavailable. Each fact carries its own evidence.

CapabilityValueEvidenceChecked
ModelsSite markets custom STT, TTS, and speech LLMs trained on production calls and served against live traffic.Facts sourced2026-10-04
PerformanceHomepage cites about 80 ms time to first token versus 600 ms for GPT-4.1 in its comparison block.Facts sourced2026-10-04
OnboardingPrimary calls to action are Get started and Talk to an Engineer rather than self-serve checkout.Facts sourced2026-10-04

Understand the total cost

Hopper pricing & plans

Pricing

Not listed

Official monthly price not confirmed

API
Not confirmed
Explore pricing & history

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The practical questions

Frequently asked questions

What is Hopper used for?

Hopper builds fast inference for voice agents by training and serving custom STT, TTS, and speech LLMs on a customer’s production calls. The company compares its models on latency and token cost versus general-purpose LLMs and offers engineering-led onboarding for voice stacks.

Does Hopper have a free plan?

Not confirmed. This record does not confirm an ongoing free plan.

How much does Hopper cost?

A listed monthly price has not been confirmed. See the plan cards for entitlements, billing commitments and seat minimums.

Can I use Hopper through an API?

Not confirmed. API access and subscription access may have different terms; consult the linked sources.

What should I check before choosing it?

Homepage highlights benchmarked latency and token pricing but does not publish named monthly subscription plans.

Price history

No retained pricing changes yet. A current price alone does not establish a historical trend.

How this profile is supported

Facts apply to the named version and check date. Send a sourced correction if something changed.