Speechify

Published September 3, 2026 · This page indexes everything this site has verified about Speechify and links to where each finding is set out in full. It is not a review — the review is. No listening test has been run, so nothing here says how Speechify sounds.

On this page

What it costs

The SpeechifyAI API is the only one of the three products with a rate you can normalize: Free at $0 with "50K characters / mo · hard cap", Starter at $10/month including 1 million characters then $10 per additional million, Pro at $99/month with 3 million then $8/1M, and Scale at $499/month with 10 million then $6/1M — all quoted from speechify.ai/pricing, checked September 1, 2026, making it the cheapest paid API entry in the site’s ten-provider coverage. The site’s own arithmetic on the included allowances gives effective costs of $10.00, $33.00 and $49.90 per million characters at Starter, Pro and Scale, so the higher plans only pay off well past their allowance. Speechify Studio is displayed annual-only — Free Plan "$0" with 600 credits, Studio Starter "$100" "/Year" with 86,400 credits, Studio Creator "$300" "/Year" with 345,600 credits — and bills in credits that convert only to seconds (voiceover 1 credit per second, dubbing 3, avatar 30) with no dollar-per-credit rate published; the consumer app shows Premium at "$29" "/Month" with no quota on the page at all, its annual figure existing only inside the page payload as "priceYearly":"$139" (pricing comparison), and its actual metering — 150,000 words per month contractually, 1,000,000 words per month for calendar 2026 — living in a separate usage-limits document effective January 30, 2026.

Every rate above is set against every other provider’s, normalized to one unit, in our pricing comparison.

Where Speechify’s own material disagrees with itself

These are contradictions inside the vendor’s published documentation, not disagreements between us and the vendor. We report both readings rather than choosing one, and each links to the page where we set it out in full. We have published 21 in total; the 10 with the most bearing on a decision are below, and the rest sit in the pages linked underneath.

• Speechify publishes three different answers to the commercial-use question on three of its own live pages. Terms of Service clause 4.4 states verbatim: "The Services, with the exception of Speechify Voice Over Studio, are not intended for your commercial use", and clause 4.1 frames the underlying grant as a licence to "stream, download and make personal non-commercial use of the Services". Its API pricing page lists "Commercial use · community support" as a feature of the free plan. Its Studio free plan card says "No commercial usage rights" — while clause 4.4 grants Voice Over Studio commercial use without distinguishing free from paid. The site notes a pricing-card bullet is not a licence clause and that the Terms of Service govern in a dispute; the same three-way conflict is set out on commercial use guide, free tier comparison and resemble ai vs speechify. Where we published this.
• No numbered clause in any Speechify contract assigns ownership of generated audio. API Terms clause 1.1 classifies synthetic output as "Output" and "Customer Content" but defers those definitions to "Business Terms" at the main terms page — a page which contains no occurrence of "Customer Content", "Output" or "Business Terms" at all, so the definitions the API contract relies on are not published. The only ownership statement Speechify makes is undated marketing copy in the Studio pricing FAQ: "With Studio you own the audio output and commercial rights in perpetuity to use for your own projects." Where we published this.
• SSML billing is described two opposite ways on two official pages. The API pricing FAQ states that "whitespace and SSML tags are not counted", while the API limits documentation states "Character counts include SSML tags." For SSML-heavy workloads that is a material difference in cost, and Speechify nowhere explains it. Where we published this.
• Speechify’s documentation states "There’s no limit to the number of voices you can create", while its API pricing page reserves "Unlimited voice cloning" for the $499/month Scale plan alone. Where we published this.
• API Terms clause 1.4 forbids letting your own end users upload voice samples — "Customer cannot enable such External End Users to upload their own Audio Files to the AI Voice Service" — while the developer documentation designs a flow around users cloning their own voices. The site’s advice is to get that resolved in writing before building on it. Where we published this.
• Speechify publishes two different per-plan concurrency ladders. Its pricing page gives 3, 6, 12 and 30 "concurrent calls" across Free, Starter, Pro and Scale — the figure it publishes for voice agents — while its developer documentation gives simultaneous text-to-speech request limits of Free 1, Starter 15, Pro 30, Scale 60 and Enterprise 100. They are not the same meter, and neither page cross-references the other. Where we published this.
• The text_normalization parameter carries a word-for-word identical description on the non-streaming and the streaming endpoint, with opposite defaults. A caller moving from /v1/audio/speech to /v1/audio/stream would silently change whether numbers are spoken as words, with no error and no warning. Where we published this.
• Language coverage is claimed and documented at very different scales. The API free tier advertises "1,500+ voices, 30+ languages" and the marketing headline is "30+ languages", while the current streaming multilingual model simba-3.0 officially documents seven locales — "en-*, de-DE, es-ES, es-MX, fr-FR, it-IT, pt-BR". The wider coverage sits on the two models scheduled for retirement. The site counted Speechify’s own language-support tables at 6 fully supported, 25 beta and 17 coming soon. Where we published this.
• On the same language-support page, Italian appears in the beta table and simultaneously among the seven locales that simba-3.0 "officially supports". The page does not say whether Italian is beta or generally available overall. Where we published this.
• simba-multilingual is described as "35 locales covering 30 distinct languages" — a figure that cannot be derived from the tables on Speechify’s own language-support page, where the site counted 31 live locale rows. Where we published this.

Dated and time-sensitive

Facts with a clock on them — model sunsets, policy revisions, market status. These are the entries most likely to be out of date first, which is why they carry their dates.

• 2026-11-21. Scheduled switch-off date for the model identifiers simba-english and simba-multilingual. Speechify’s models documentation states that on retirement they will be "No longer selectable", that naming either "returns 400 model_retired", and that on this date they are "Switched off. Unreachable on every API version, including a workspace pinned below the retirement." Source on this site.
• 2026-09-21. Date carried by the changelog entry announcing that retirement — twenty days after the site’s September 1, 2026 check, with both models still listed live under a deprecation notice. Recorded as announced and scheduled, not effective. Source on this site.
• 2026-09-01. Speechify pairs the retirement schedule with a conditional commitment quoted in full: "if you do synthesize outside those seven, broader multilingual coverage is coming on the current model generation before the shutdown, and if it is not in your hands by then we move the date rather than cut the languages off." The site flags it as a promise worth verifying before November. Source on this site.
• 2025-07-01. "Updated" date on the consumer Terms of Service, the document carrying clauses 4.1, 4.2(k)(vii), 4.4 and 6.3 — licence scope, cloning consent, the commercial-use exclusion and carve-out, and the usage-limits reference. Source on this site.
• 2024-06-10. "Updated" date on the AI Voice API Terms & Conditions, carrying clauses 1.1, 1.4 and 2.4 — the output definitions, the end-user upload prohibition and the consent obligation. The site notes this contract is over two years old against a product that has changed brand and domain since. Source on this site.
• 2026-01-30. Effective date of the separate usage-limits document that Terms clause 6.3 points to, containing the Premium word guarantees the consumer pricing page does not show. Source on this site.
• 2026-12-31. End of the window for Speechify’s larger Premium allowance: "From January 1 through December 31, 2026, Speechify guarantees all Premium subscribers a total Premium Voice usage limit of 1,000,000 words per month." The standing contractual floor outside that window is 150,000 words per month. Source on this site.
• 2026-07-22. Date on Speechify’s privacy policy. None of its three pricing pages carries a date of any kind. Source on this site.

Every page on this site about Speechify

• Full review. Speechify Review 2026: Three Products, Three Licences, Docs-Verified — the complete documentation-based assessment, with sources and dates against every claim.
• Alternatives. Speechify alternatives — organized by the reason you would leave, not as a ranked list.
• Head to head. OpenAI vs Speechify, Resemble AI vs Speechify.
• In our buying guides. Best AI Voice Generators in 2026: 10 Providers Compared, Best AI Dubbing Software 2026: Only Four Vendors Actually Sell It, Best Free AI Voice Generators 2026: What “Free” Actually Buys You, Most Realistic AI Voices: What Every Vendor Charges for the Claim, Best Multilingual AI Voice Generators: Every Count, Recounted, Real-Time AI Voice: Why the Latency Numbers Cannot Be Compared, Best AI Voice Cloning Software 2026: Price, Access and Consent Compared.
• In our comparisons of published data. AI Voice Generator Pricing Comparison: Every Rate Normalized, Best Text-to-Speech APIs: Limits, Transports and Auth Compared.
• In our explainers. Can You Use AI Voices Commercially? What Ten Vendors Actually Say, How AI Voice Cloning Works: What Ten Vendors Require of You, How AI Voice Generators Work, According to the Vendors Themselves.
• By what you are making. AI Voice for Audiobooks: Will Chapter 20 Match Chapter 1?, AI Voice for Business: What Survives a Procurement Review, AI Voice for eLearning: Courses Change, and the Audio Must Follow, AI Voice for Podcasts: Only Three Providers Do Two Speakers, AI Voice for YouTube: What You Must Disclose Before You Publish.

What we could not verify

Honesty about gaps beats a page that looks complete. Standing limits on everything above, as of September 3, 2026:

• How Speechify sounds. Our listening benchmark is designed but not running. Nothing on this page or on any page it links to ranks Speechify on audio quality, naturalness or speed.
• Anything Speechify does not publish. Every page indexed here is built from the vendor’s own documentation. Where that documentation is silent, we record the silence rather than estimating around it.
• Whether a documented feature works as documented. We read documentation; we did not create an account or make an API call.
• Currency. Each linked page carries its own check date. This index inherits them and does not re-verify on load.

Change log

September 3, 2026 — First publication. Assembled from pages already published on this site; no new vendor claim was introduced by this page.

Published September 3, 2026 · This page shows no audio and reports no listening results, because our benchmark has not run. Corrections are recorded with their date on the corrections page. Independence note: this page contains no affiliate links, and no vendor paid for placement or influenced the order — see how we make money and our editorial policy.