Inworld - AI Tools Nav

What it is for

Inworld is a TTS / STT / LLM credit desk: one balance pays Realtime TTS-2, speech-to-text, and hosted open models. Use it when the job is game or product voice you meter in characters and hours, not when you need a $20 chat seat.

What makes it unique: the cover is the official TTS Playground — voice, model, delivery, and talking-speed controls — not a pricing card. The playground itself is ops, not a fifth product.

Key features

Realtime TTS — TTS-2 and TTS-2 Flash turn text into speech (pricing; playground). One synthesizer. Flash vs TTS-2, steering, rate, and temperature are SKU / modes of this.
Speech-to-text (STT 1) — hours of audio → text on the same credit balance (pricing “STT 1”). A listen, not a speak.
LLM Inference — 100+ hosted models from $0.07/1M input tokens, paid from the same credits. A generate, not a voice.
Voice cloning & design — instant clone, professional clones, and custom voices (On-Demand: 100 custom / 2 pro clones). A voice asset, not a TTS request.
Speech-to-Speech — voice in, voice out without a text middle (On-Demand feature list). A conversation path, not a TTS render.

Playground character caps (On-Demand 2,000 / paid 40,000) are SKU of TTS. Concurrent requests are SKU. Credits (plan dollars, 3-month rollover) are the meter. SDKs are install.

Who it's for

Best fit: builders who will stay on On-Demand $0 pay-as-you-go (up to ~70 min TTS included), then buy Creator at $25/month when they want $25 in credits and TTS-2 at $20/1M chars instead of $25.

Pricing

Verified 2026-10-22 (Asia/Shanghai) from inworld.ai/pricing. Yearly toggle saves two months. Unused subscription credits roll 3 months on an equal-or-higher paid plan.

On-Demand — $0 + usage. TTS-2 $25/1M chars. TTS-2 Flash $15/1M. STT 1 $0.15/hour. LLM from $0.07/1M tokens. Up to 70 min TTS included. 100 custom voices, 2 pro clones. 5 concurrent requests. Community support.
Creator — $25/month. $25 credits. TTS-2 $20/1M. Flash $10/1M. STT $0.10/hour. 500 custom / 4 pro clones. 40K playground chars. 10 concurrent.
Builder — $100/month. $100 credits. TTS-2 $17.50/1M. Flash $9. 3,000 custom / 10 pro. Workspace create + share. 50 concurrent.
Developer — $300/month. $300 credits. TTS-2 $15/1M. Flash $8. 10,000 custom / 25 pro. Priority email. 150 concurrent.
Growth — $1,500/month. $1,500 credits. TTS-2 $12.50/1M. Flash $7. 30,000 custom / 40 pro. 500 concurrent. ZDR / HIPAA / BAA add-ons.
Enterprise — custom. TTS-2 as low as $5/1M. SLA, DPA, EU/India residency.

Overage is the same unit rate. Extra credits expire in 1 year. Confirm checkout; taxes follow your location.

Limitations / costs

On-Demand list rates are the highest. The $25 Creator card is the first discount.
Credits are the bill. A $100 plan is $100 of usage, not unlimited voice.
A voice+model meter, not a DAW. For a creator TTS seat see ElevenLabs. For podcast edit see Descript.

Alternatives

Official tutorial

Official Inworld AI channel video (oEmbed author: Inworld AI).

Written path: TTS Playground plus Pricing.

Website

https://inworld.ai

Source

Catalog row curated for AI Tools Nav. Cover is the official Inworld TTS Playground docs UI. Dollars checked on inworld.ai/pricing (On-Demand $0 PAYG; Creator $25; Builder $100; Developer $300; Growth $1,500). Tutorial oEmbed author: Inworld AI.

Last verified

2026-10-22 (Asia/Shanghai) editorial check.