Speechace Speaking & Writing AI Assessment and API

Speechace LLC, based in Seattle, Washington, develops speech recognition designed specifically for assessing pronunciation and fluency of language learners. It serves only the education segment, and its technology is used by large publishers, language learning providers, universities, K-12 programmes, test prep institutes, call centres and multinational businesses.

The Speechace API scores pronunciation down to word, syllable and phoneme level, adds fluency metrics such as speaking rate and pauses, and in its premium plan evaluates spontaneous speech for grammar, vocabulary, relevance and coherence with IELTS and PTE estimates. On top of the API, the Speechace Speaking Test lets schools and companies run branded speaking and writing tests with AI avatar examiners, instant reports aligned to CEFR, IELTS, TOEFL, PTE and TOEIC, video recording and a management panel. Roleplay Assessments added in 2026 simulate conversations with an AI customer, manager or patient to measure communication skills.

• Pronunciation API: scores at sentence, word, syllable and phoneme level for US and UK English.
• Fluency metrics: speaking rate, pausing, length of run and words correct per minute.
• Spontaneous speech scoring: grammar, vocabulary, relevance and coherence with IELTS and PTE estimates.
• AI avatar examiners: customisable virtual examiners and domain-specific question banks.
• Roleplay Assessments: multi-turn AI conversation simulations for hiring, training and certification.
• Management panel: test deployment, monitoring, video recording, transcripts and analytics.

• IELTS preparation centres in Vietnam embedding the API in their apps for instant speaking feedback.
• Call centres and BPO firms screening applicants with branded speaking tests and AI role-plays.
• Universities running placement and exit speaking tests for large cohorts.

• Lower assessment cost: fully automated scoring removes examiner scheduling and reduces bias.
• Credible scores: results fall within 0.5 to 1.0 points of human examiners, with a test-retest reliability of 0.82.
• Fast setup: a custom-branded test portal can be launched in minutes, with tests running anytime.
• Flexible build options: developers can embed pronunciation scoring through the API or a native Moodle plugin and LTI.

Language schools, publishers and employers are adding automated speaking assessment so that every learner can practise and be scored without a human examiner. Demand for IELTS-style practice and English screening is strong in Southeast Asia, and Vietnam has many test-prep centres and outsourcing firms that need affordable, embeddable speech scoring.

Speechace LLC is based in Seattle, WA, USA and states that it has helped organisations evaluate speaking and writing skills for more than a decade. Testimonials include the University of Maine and Speechwork Consultancy in Thailand. Writing assessment was added in March 2026 and Roleplay Assessments in June 2026.