Speechace API Plans

Basic

per month

^$80

Ideal for short word and sentence pronunciation activities

Pronunciation Score

Sentence Score

Word Score

Syllable Score

Phoneme Score

Supports US English

Supports UK English

Up to 15 seconds long audio files

Includes: 10,000 15-second monthly requests

Additional requests: $0.008 per 15-seconds of audio

Pro

per month

^$250

Ideal for evaluating fluency for scripted speech activities

IELTS/PTE Speaking Score

Pronunciation & Fluency Scores

Sentence, Word, Syllable, Phoneme Score

Speaking rate, Pausing

Length of Run, Words correct per minute

Supports US & UK English

Up to 45 seconds long audio files

Includes: 30,000 15-second monthly requests. (One 45 sec audio file = three 15-sec requests)

Additional requests: $0.008 per 15-seconds of audio

Premium

per month

^$500

Ideal for evaluating spontaneous speech activities

Audio Transcription

IELTS/PTE/CEFR/TOEIC Fluency, Pronunciation, Vocabulary & Grammar scores

Sentence, Word, Syllable, Phoneme Score

Relevance and Coherence scores

Speaking rate, Pausing

Length of Run, Words correct per minute

Supports US & UK English

Up to 1 minutes long audio files

Includes: 30,000 15-second monthly requests (1 min audio file = four 15-sec requests)

Additional requests: $0.017 per 15-seconds of audio