MD-reviewed ·  Healthcare editorial
MedAI Verdict
Mental health

Reference AS-133  ·  AI Mental Health

Sonia

by Sonia (YC)

Voice-based AI therapist with 6-week GAD program.

At a glance

Pricing
~$20/mo.
HIPAA
Not disclosed
SOC 2
Not disclosed
EHRs
Founded

Bottom line

Voice-based AI therapist with 6-week GAD program.

Free tier available.

Overview

Voice-first AI therapist. Choose-your-therapist UX.

Pricing

What it costs

Free tier only; no paid plans publicly disclosed.

TierMonthlyAnnualNotes
Plan~$20/mo.

Source: vendor pricing page. Verified May 23, 2026.

Peer-reviewed coverage

What the literature says

5 peer-reviewed studies indexed on PubMed evaluate Sonia in clinical contexts. The most relevant are shown below, ranked by editorial relevance score combining title match, study design, recency, and journal tier.

Health economic outcomes and costs of CDK4/6 inhibitor use in first- versus second-line for advanced breast cancer: A cost-effectiveness analysis of the phase 3 SONIA trial.
Wortelboer N, Kent S, Konings IR, et al.· Eur J Cancer· 2025RCT
The SONIA phase 3 trial demonstrated adding cyclin-dependent kinase 4 and 6 inhibitors (CDK4/6i) to first-line endocrine therapy (aromatase-inhibitor) was not superior in terms of progression-free survival after two treatment lines compared to addition to second-line (fulvestrant) in patients with hormone-receptor positive, HER2-negative advanced breast cancer. Although critical to inform decision-making, a detailed health economic evaluation of both treatment strategies is currently lacking. We estimated the cost-effectiveness of CDK4/6i use in first- versus second-line over 5 years using pa…
Health-related quality of life with first- vs second-line CDK4/6 inhibitor use in advanced breast cancer: results from the SONIA trial.
Wortelboer N, Kent S, Blommestein HM, et al.· J Natl Cancer Inst· 2026RCT
The SONIA trial demonstrated that addition of cyclin-dependent kinase 4 and 6 inhibitors (CDK4/6i) to first-line endocrine therapy (aromatase-inhibitor) was not superior in terms of progression-free survival after 2 treatment lines compared with addition to second-line (fulvestrant), while first-line use increased toxicity (74% more grade ≥3 adverse events) and costs. Understanding the impact of both treatment strategies on health-related quality of life (HRQOL) is critical to inform patient-centered treatment decisions. HRQOL was assessed using the Functional Assessment of Cancer Ther…
Cost-effectiveness analysis of first-line versus second-line use of CDK4/6 inhibitors combined with endocrine therapy in advanced HR+/HER2- breast cancer in China: based on the SONIA trial.
Jin X, Li Z· Front Pharmacol· 2025
The optimal sequencing of CDK4/6 inhibitors combined with endocrine therapy for advanced hormone receptor-positive, HER2-negative (HR+/HER2-) breast cancer remains uncertain, particularly in resource-limited settings such as China. This study evaluated the cost-effectiveness of first-line versus second-line CDK4/6 inhibitor use based on the SONIA trial. A partitioned survival model was developed to compare costs and effectiveness of first-line (CDK4/6i-first) versus second-line (CDK4/6i-second) CDK4/6 inhibitor strategies among Chinese women with advanced HR+/HER2- breast cancer. Model inputs…
Effect of Nitisinone on Aortic Stenosis Disease Progression in Patients With Alkaptonuria: An Analysis of the Suitability of Nitisinone in Alkaptonuria (SONIA) 2 Study.
Bruce C, Meenamkuzhy-Hariharan P, Hussain S, et al.· Cureus· 2025
Background and aim Alkaptonuria (AKU) is a rare metabolic disorder characterised by the accumulation of homogentisic acid (HGA). Deposition of HGA in the aortic valve leading to progressive aortic stenosis is a serious complication. Nitisinone has been shown to improve morbidity and slow disease progression in AKU, but the effects of this treatment on aortic stenosis progression have not yet been described. The objective of this study was to evaluate whether treatment with nitisinone attenuated the progression of aortic stenosis, as assessed by peak trans-aortic valve pressure (P), in patient…
Overall Survival With First-Line vs Second-Line CDK4/6 Inhibitor Use in Advanced Breast Cancer: A Randomized Clinical Trial.
Wortelboer N, van Ommen-Nijhof A, Konings IR, et al.· JAMA Oncol· 2026RCT
Cyclin-dependent kinase (CDK) 4 and 6 inhibitors (CDK4/6i) combined with endocrine therapy are widely used in hormone receptor (HR)-positive, ERBB2-negative advanced breast cancer (ABC). The SONIA trial evaluates the optimal timing of CDK4/6i administration, either in first-line or second-line setting. To determine whether first-line CDK4/6i use is superior to second-line use in terms of overall survival (OS) and to provide an updated analysis of the primary end point of progression-free survival (PFS) after 2 lines of therapy. The phase 3 SONIA randomized clinical trial is a multicenter tria…

See all on PubMed

Clinician sentiment

What clinicians say about Sonia

Aggregated from 23 public clinician mentions. We quote with attribution under fair-use commentary.

What clinicians say

Aggregated sentiment from 23 public mentions

Overall
leaning negative
Positive share
4%
Score
-0.10
Sources
Reddit·23

Themes mentioned

  • context-window3
  • response-quality2
  • capabilities2
  • ethics2
  • pricing1
  • exercises1
  • free-tier1
  • anxiety-support1

Pros most mentioned

  • 01doesn't come across as robotic
  • 02sonia offers engaging exercises
  • 03helps organize thoughts and alleviate anxiety
  • 04curated limited responses prevent hallucination/derailing
  • 05advanced tools monitor language/statements

Cons most mentioned

  • 01limited responses
  • 02plenty of issues
  • 03not there yet
  • 04worried about data
  • 05felt like talking to chatgpt

Direct quotes

Patients have enough bad experiences with human therapists that some will inevitably try a chatbot alternative. It won't take very long for the patient to realize that while the claim that it will listen better than your ex may be true in some cases, it only remembers three or four messages back. It's a machine that generates vacuous platitudes. It cannot diagnose anything, nor
Redditr/PsychiatryNov 2024-0.80View source
Actually chat gpt has the ability to go many conversations back and I've even went as far to ask it to interpret my dreams from a Jungian perspective. These AI components lack the human aspect and that's where it will go wrong. That they actually have no ethical compass to make money out of human trauma is such a shame.
Redditr/PsychiatryNov 2024-0.75View source
It’s not there yet, but will likely reach the point of being able to do CBT given how manualized it is
Redditr/PsychiatryNov 2024+0.20View source

Summarized from 23 public clinician mentions. We quote with attribution under fair-use commentary and never republish full reviews. See our editorial methodology for source weights.