Enunciated Cadence
Word-level clarity and a tempo that listeners can follow naturally.
English Speaking Assessment
How your English actually sounds, evaluated by native English speakers.
Certified native English speakers and AI assess how your spoken English comes across to listeners. From students learning English to business professionals seeking a promotion, anyone can take the test, regardless of level or goal.
Take the free speaking diagnostic →
See the test optionsJust 3 questions · about 3 min to finish
About Ei5
About Ei5.
Ei5 is a diagnostic service that combines certified native English speakers and AI to evaluate your spoken English.
We measure what paper-based tests like TOEIC or Eiken can't: how your spoken English actually lands with the listener.
What we evaluate isn't just vocabulary or grammar — it's articulation, speaking rhythm, fluency, and how clearly your English comes across, assessed holistically.
Not what you said, but how it sounded.
- Certified native evaluators
- AI speech analysis
- Detailed feedback
01Compare
How Ei5 stacks up against other English tests.
A side-by-side comparison of the Ei5 Certified Test against major speaking-focused English tests.
Ei5 offers three tests in total. Snapshot, the most accessible, starts at ¥1,980.
* Comparison based on the Ei5 Certified Test (¥4,500). Competitor data sourced from each provider's public information.
| Ei5 Certified Test | TOEIC S&W | VERSANT | IELTS | |
|---|---|---|---|---|
| Scoring method | Human + AI | Humans only | AI only | Humans only |
| Tuned for Japanese speakers | ● | - | - | - |
| Result turnaround | Within 5 days | ~30 days | Instant | ~13 days |
| Fee | ¥4,500 | ¥10,450 | ¥5,500 | ¥25,380+ |
| Report | Detailed 5-construct breakdown | Score only | Score only | Band score |
02The Ei5 Model
The five constructs behind every Ei5 test.
The Ei5 Model is a framework of five evaluation constructs developed in-house to score spoken English on a consistent basis. Every Ei5 test is scored on top of this shared model.
From articulation to prosody, we break what used to be loosely called "fluency" into measurable parts so we can pinpoint exactly where the message is getting lost.
FIVE CONSTRUCTS
The five things Ei5 evaluates.
Phonetic Precision
Consonants and vowels articulated correctly at the phoneme level.
Fluent Articulation
Speech that flows without filler words or unnecessary pauses.
Tonal Fluidity
Pitch and stress shifting naturally so speech reads as easy to follow.
Prosodic Intonation
Stress and rhythm that carry the intended meaning to the listener.
BACKGROUND / Origin
20+ years of research
The Ei5 Model was designed by linguistics specialists who have spent 20+ years in the United States researching English communication and phonetics.
Academic research distilled into criteria that learners can actually use.
SYSTEM / Engineering
AI × linguistics × speech analysis
AI speech analysis combined with evaluation by certified native English speakers produces results that are both objective and credible.
We pair linguistic expertise with engineering precision — neither alone is enough.
AI speech analysis
Pronunciation, rhythm, and features analyzed at high precision.
Certified native evaluator
Naturalness and clarity assessed by trained human ears.
Detailed report
Strengths and areas for improvement, surfaced clearly.
- 01Enunciated Cadence
Word-level clarity and a tempo that listeners can follow naturally.
- 02Phonetic Precision
Consonants and vowels articulated correctly at the phoneme level.
- 03Fluent Articulation
Speech that flows without filler words or unnecessary pauses.
- 04Tonal Fluidity
Pitch and stress shifting naturally so speech reads as easy to follow.
- 05Prosodic Intonation
Stress and rhythm that carry the intended meaning to the listener.
03Tests
Pick the test that fits your goal.
From a quick AI diagnostic to a full certified assessment, choose the one that fits where you are.
← Light · FastFull · Certified →
Consistent, every time.
04Why Ei5
What sets Ei5 apart from traditional tests.
Evaluates the English you actually speak
Goes beyond what paper tests measure by scoring the speech itself across five dimensions.
Certified native speakers + AI
AI analyzes your speech in detail; certified native English speakers make the final call.
Tuned for Japanese speakers
Built around the pronunciation and rhythm patterns most common for Japanese learners.
Consistent, every time
Five evaluation constructs produce comparable results across every test-taker.
05Voices
From the people who took the test.
“We brought Ei5 in for internal evaluation. Results land within 24 hours, fast enough to use in a high-pressure work environment. The pitch-accent detection in particular surfaced concrete things to fix that mattered in real client conversations.”
吉
吉田 洋弘
Sales · Trading company
“As an SEO engineer I present to international clients often. Taking Ei5 gave me a clear picture of where my spoken English was strong and where it wasn't. The specific points to work on translated directly into more confidence in real meetings.”
西
西浦 富士子
SEO engineer · IT
“Practicing speaking with Ei5 didn't just teach me English. It built English I can actually use. I earned the top-rank Ei5 Level 5 Black Belt, and this fall I'm heading to UCLA on a full scholarship. Ei5 took my English to the next level and gave me both the confidence and the proof.”
佐
佐藤 悠太
University student · Tokyo
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