Inworld TTS

Realtime TTS-2 is the #1 model on Artificial Analysis and the fastest TTS in the world in its class. Inworld offers pricing that scales with user needs; you can choose a plan and receive monthly credits to use across TTS, STT, and LLMs. Higher tiers provide volume discounts, additional features, higher limits, and more, with Monthly and Yearly options · 2 months free. The On-Demand plan, designed for evaluation and prototyping, includes a free starter option; TTS-2 is priced at $25/1M characters, and TTS-2 Flash at $15/1M characters, STT 1 is priced at $0.15/hr, while LLMs are billed at cost. The plan includes up to 70 min of TTS, 100 custom voices, voice cloning and voice design, real-time API access, 220+ LLM models via Router, a commercial license, and community support. It can be selected via “Choose On-Demand” at https://platform.inworld.ai/billing. The Creator plan, designed for content creation and small projects, costs $25/mo. The price for TTS-2 is $25/$20 per 1M characters, and the price for TTS-2 Flash is $15/$10 per 1M characters, STT 1 is priced at $0.15–$0.10/hr, while LLMs are billed at cost. It includes $25 in credits per month, up to 33% off TTS & STT rates, 500 custom voices, 40K chars per TTS Playground request, workspace creation and sharing, team management, and everything in On-Demand. You can select a plan through “Choose Creator” at https://platform.inworld.ai/billing. The Builder plan, designed for growing projects and small teams, costs $100/mo. The price for TTS-2 is $25–$17.50/1M chars, and the price for TTS-2 Flash is $15–$9/1M chars, STT 1 is priced at $0.15–$0.10/hr, while LLMs are billed at cost. It includes $100 in credits per month, up to 40% off TTS & STT rates, 3,000 custom voices, increased concurrency limits, workspace creation and sharing, team management, and everything included in the Creator plan. You can select this plan via “Choose Builder” at https://platform.inworld.ai/billing. The Developer plan, designed for production applications, costs $300/mo; the price for TTS-2 is $25–$15/1M chars, and the price for TTS-2 Flash is $15–$8/1M chars, STT 1 is priced at $0.15–$0.10/hr, while LLMs are billed at cost. It includes $300 in credits per month, up to 47% off TTS & STT rates, 10,000 custom voices, increased concurrency limits, Professional voice cloning (add-on), and priority email support, in addition to everything in Builder. It can be selected via “Choose Developer” at https://platform.inworld.ai/billing. The Growth plan, designed for large-scale deployments and compliance, is priced at $1,500/mo; TTS-2 is priced at $25/$12.50 per 1M characters, and TTS-2 Flash is priced at $15/$7 per 1M characters, STT 1 is priced at $0.15–$0.10/hr, while LLMs are billed at cost. It includes $1,500 in credits per month, up to 53% off TTS & STT rates, 30,000 custom voices, higher API concurrency and limits, 1 professional voice clone, ZDR, HIPAA, and BAA (add-ons), in addition to everything included in the Developer plan. It can be selected through “Choose Growth” at https://platform.inworld.ai/billing. The Enterprise plan offers custom pricing, limits, and terms at a custom rate, with TTS-2 pricing as low as $5/1M, TTS-2 Flash pricing under $5/1M, STT is priced at 1 Custom, and LLMs are priced at Custom. You can contact sales via https://inworld.ai/contact-sales. The plan includes price match available, custom limits, SLA & DPA, EU & India data residency, a dedicated Account Manager & Slack channel, in addition to everything in the Growth plan. There is also an “Estimate your monthly cost” option that allows you to select the desired products and features and your expected usage to find the right plan, with Monthly and Yearly options · 2 months free. Step 1 is “Select product or feature,” followed by “Text-to-Speech.” Step 2 is “Minutes of audio per month,” where the value shown is 0 min with a range of 0 to 100K+. The “Recommended plan” is “On-Demand,” and the “Plan cost” and “Total” are both “Free.” You can select “Choose On-Demand” via “https://platform.inworld.ai/billing.” The estimate is based on Realtime TTS-2 Flash rates; the actual cost may be higher with Realtime TTS-2, while LLMs are billed separately at the provider’s cost. In the “Compare plans” section, you can filter plans by product to view pricing, limits, and features for each tier. Products include Text-to-Speech, Speech-to-Text, Realtime API, and LLM Router, with Monthly and Yearly options · 2 months free. The On-Demand plans include Start (free), Creator ($25/mo), Builder ($100/mo), Developer ($300/mo), Growth ($1,500/mo), and Enterprise (Custom). In the “Pricing per 1M characters/per minute” section, assuming that one minute of audio is ~1,000 characters, the price for Realtime TTS-2 in the plans is, in order, $25, $20, $17.50, $15, and $12.50 and as low as $5, while the price for Realtime TTS-2 Flash is $15, $10, $9, $8, $7, and under $5; overage usage is billed at the same rate as your plan. Features include API access on all plans and audio downloads on all plans. Character limits in TTS Playground are 2,000 for On-Demand, 40,000 for Creator, 40,000 for Builder, 40,000 for Developer, 40,000 in Growth, and Custom in Enterprise. The number of custom voices is 100, 500, 3,000, 10,000, 30,000, and Custom, respectively. Instant voice cloning is available on all plans, while Professional voice cloning — in On-Demand, — in Creator, — in Builder, as an add-on in Developer, 1 in Growth, and Custom in Enterprise, Voice design, Steering (Realtime TTS-2 only), Speaking rate control, Temperature control, 200+ languages, Custom pronunciation, and Timestamps are available on all plans, while New workspace creation is available in On-Demand — Creator — Builder — Developer — Growth — and Enterprise Custom, and Workspace sharing is available in On-Demand — Creator — Builder, Developer, Growth, and Enterprise Custom. Limits include the number of concurrent requests, which are 5, 10, 50, 150, 500, and Custom, respectively, while the estimated concurrent user sessions are 20, 40, 200, 600, 2,000, and Custom. Note that the number of concurrent user sessions that can be handled will vary by use case, but is typically at least 4x your concurrent request limit. Platform & Compliance includes API access, GDPR & SOC 2 Type II, a commercial license, and credit rollover across all plans, while HIPAA & BAA — in On-Demand, — in Creator, — in Builder, — in Developer, and as an add-on in Growth, and are available in Enterprise; Zero data retention — is included in On-Demand, Creator, Builder, and Developer, is an add-on in Growth, and is available in Enterprise; SLA & DPA — are included in all plans up to Growth and are available in Enterprise; and Data residency — is included in all plans up to Growth, while EU and India options are available in Enterprise. As for Payment, it is — in On-Demand; Credit Card in Creator; Credit Card in Builder; Credit Card in Developer; Credit Card in Growth; and Invoicing / PO in Enterprise. Support is Community in On-Demand; Community in Creator; Community for Builder, Priority Email for Developer, Priority Email for Growth, and Account Manager + Slack for Enterprise. You can select On-Demand, Creator, Builder, Developer, or Growth via https://platform.inworld.ai/billing, while you can contact Enterprise via https://inworld.ai/contact-sales. The FAQs include questions such as “What are credits and how do they work?”, “Do unused credits roll over?”, “What happens if I go over my credits?”, “What happens when I upgrade, downgrade, or cancel my subscription?”, and “What plan is right for me?” The “Start building” section is available with the “Get Started Free” option at https://platform.inworld.ai/billing and the “Contact Sales” option at https://inworld.ai/contact-sales. Products include Realtime TTS at https://inworld.ai/tts, Realtime Router at https://inworld.ai/router, Realtime STT at https://inworld.ai/speech-to-text, Realtime API at https://inworld.ai/realtime-api, and Models at https://inworld.ai/models. The “Solutions” category includes Social & Companions at https://inworld.ai/social-companions, Learning & Education at https://inworld.ai/learning-education, Health & Wellness at https://inworld.ai/health-wellness, Agentic Workforce at https://inworld.ai/agentic-workforce, and Games & Media at https://inworld.ai/gaming-media. The Developers section includes Documentation at https://docs.inworld.ai/docs/introduction, API Reference at https://docs.inworld.ai/api-reference/introduction, and Playground at https://platform.inworld.ai/tts-playground; Socials includes X at https://x.com/inworld, LinkedIn at https://www.linkedin.com/company/inworld-ai, and GitHub at https://github.com/inworld-ai; “Company” includes “Careers” at https://inworld.ai/careers, Blog at https://inworld.ai/blog, Security at https://inworld.ai/security, Resources at https://inworld.ai/resources, and Support at https://docs.inworld.ai/portal/support. The copyright notice appears at © 2021–2026 Inworld AI, and includes Privacy at https://inworld.ai/privacy, Terms at https://inworld.ai/terms, and Model Provider Terms at https://inworld.ai/legal/model-providers. The text "Pricing that scales with you" appears at the bottom of the page.