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

US & UK English

FR & CA French

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/CEFR Oral Fluency Score

Pronunciation & Fluency Scores

Sentence, Word, Syllable, Phoneme Score

Speaking rate, Pausing, Stress, Pitch, Intonation

Length of Run, Words correct per minute

US & UK English, FR & CA French

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 Speaking Score

Fluency & Coherence, Pronunciation, Vocabulary & Grammar scores

Relevance assessment

Feedback metrics for all skills

US & UK English, FR & CA French

Up to 2 minutes long audio files

Includes: 30,000 15-second monthly requests (2 min audio file = eight 15-sec requests)

Additional requests: $0.017 per 15-seconds of audio