AI Audio Generator ToolsText to SpeechAudio EditingPaid

Inworld

#1 TTS on Artificial Analysis just got better. <250ms latency, 30% more expressive, 40% lower WER, 25x cheaper. Built for real-time voice apps that scale.

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Overview

Inworld TTS is an AI-powered text-to-speech (TTS) solution designed for creating realistic and expressive voice experiences. It leverages advanced artificial analysis to convert written text into natural-sounding speech with exceptionally low latency, making it ideal for real-time applications. Inworld aims to provide a superior TTS experience by focusing on reducing word error rates (WER), enhancing expressiveness, and significantly lowering costs compared to previous solutions.

The core functionality of Inworld TTS revolves around its ability to synthesize speech quickly and accurately. It achieves this through optimized algorithms and a focus on efficiency, resulting in a system that is both powerful and cost-effective. The platform's architecture is built to handle the demands of scalable voice applications, ensuring consistent performance even under heavy load. By prioritizing low latency and high-quality audio output, Inworld TTS empowers developers to create engaging and interactive voice-based experiences.

Key Features

Ultra-low latency (<250ms) for real-time applications.
Enhanced expressiveness, resulting in more natural and engaging speech.
Reduced Word Error Rate (WER) by 40% for improved accuracy.
Cost-effective solution, up to 25x cheaper than previous alternatives.
Scalable architecture designed for high-volume voice applications.

Use Cases

Developers building real-time voice applications.
Game developers creating interactive character dialogues.
Companies developing virtual assistants and chatbots.
Businesses implementing voice-based customer service solutions.
Educators creating accessible learning materials with audio narration.

Pricing

Pricing Plans:

* Claude 3 Haiku: $0.25, $1.25

* Claude 3.5 Haiku: $0.8, $4

* Claude 3.7 Sonnet: $3, $15

* Claude Haiku 4.5: $1, $5

* Claude Opus 4: $15, $75

* Claude Opus 4.1: $15, $75

* Claude Opus 4.5: $5, $25

* Claude Sonnet 4.5: $3, $15

* GPT OSS 120B: $0.35, $0.75

* Llama 3.1 8b: $0.1, $0.1

* LLama-3.3-70b: $0.85, $1.2

* DeepSeek R1 0528: $0.5, $2.15

* DeepSeek R1 Distill Llama 70B: $0.6, $1.2

* DeepSeek V3.1 Terminus: $0.21, $0.79

* DeepSeek V3.2: $0.26, $0.39

* GLM 4.6: $0.43, $1.75

* GLM 4.7: $0.43, $1.75

* Google Gemma 3 12b it: $0.04, $0.13

* Google Gemma 3 27b it: $0.09, $0.16

* Google Gemma 3 4b-it: $0.04, $0.08

* GPT OSS 120B: $0.039, $0.19

* GPT OSS 20B: $0.03, $0.14

* Hermes 3 Llama-3.1 405B: $1, $1

* Kimi K2 Instruct 0905: $0.4, $2

* Kimi K2 Thinking: $0.47, $2

* Llama 3.1 Nemotron 70B Instruct: $1.2, $1.2

* Llama 3.2 11B Vision Instruct: $0.049, $0.049

* Llama 3.2 3B Instruct: $0.02, $0.02

* Llama 3.3 Nemotron Super 49B v1.5: $0.1, $0.4

* Llama 4 Scout 17B 16E Instruct: $0.08, $0.3

* Llama-Guard-4-12B: $0.18, $0.18

* Microsoft Phi 4: $0.07, $0.14

* Microsoft WizardLM 2 8x22B: $0.48, $0.48

* MiniMax M2: $0.254, $1.02

* MiniMax M2.1: $0.28, $1.2

* Mistral Nemo Instruct 2407: $0.02, $0.04

* Mistral Small 24B Instruct 2501: $0.05, $0.08

* Mistral Small 3.2 24B Instruct 2506: $0.075, $0.2

* Nemotron 3 Nano 30B A3B: $0.06, $0.24

* Qwen 2.5 72B Instruct: $0.12, $0.39

* Qwen2.5 VL 32B Instruct: $0.2, $0.6

* Qwen3 235B A22B Thinking 2507: $0.23, $2.39

* Qwen3 30B A3B: $0.08, $0.29

* Qwen3 Next 80B A3B Instruct: $0.09, $1.1

* Qwen3 VL 235B A22B Instruct: $0.2, $1.2

* Qwen3 VL 30B A3B Instruct: $0.15, $0.6

* DeepSeek V3.1: $0.56, $1.68

* GPT OSS 20B: $0.07, $0.3

* Kimi K2 Instruct: $0.6, $2.5

* Kimi K2 Thinking: $0.6, $2.5

* Meta Llama 3.1 405B: $3, $3

* Meta Llama 3.1 8B Instruct: $0.2, $0.2

* Meta Llama 3.2 3B Instruct: $0.1, $0.1

* Meta Llama 3.3 70B Instruct: $0.9, $0.9

* Meta Llama 4 Maverick (Basic): $0.22, $0.88

* MiniMax M2: $0.3, $1.2

* Mixtral 8x22b instruct: $1.2, $1.2

* OpenAI gpt OSS 120b: $0.15, $0.6

* Qwen3 235b a22b Thinking: $0.11, $0.6

* Qwen3 Coder 30b a3b Instruct: $0.15, $0.6

* Qwen3 Coder 480B: $0.45

Note: Refer to the official Inworld website for the most accurate pricing.

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