inworld-ai/realtime-tts-1.5-mini

deepinfra/inworld-ai/realtime-tts-1.5-mini

audioContext —

Fast multilingual text-to-speech model by Inworld AI with 130+ preset voices across 15 languages. Supports voice cloning, word-level timestamps, and streaming. Optimized for low-latency applications with <130ms time-to-first-audio.

Price

Price$25

per character

Compare this model

Providers

Each row is one seller. Prices are the published rate from that source. A dash means that source did not publish the amount. Sorted by a 3:1 blend of input and output.

Provider	Tag	Quant	Input	Output	Context	Uptime	Status	Source
DeepInfra	—	—	Not published—	Not published—	—	—	Listed	deepinfra

Monthly bill

Token models use the token counts. Image, video, and audio models use units times the flat rate.

Input tokens Output tokens Units

No published price at list price for this workload

Every rate

Unit	Input	Output	Flat	Confidence
character	$25/character	Not published—	Not published—	official

Price history

inworld-ai/realtime-tts-1.5-mini

input or flat output

Daily snapshots

UTC date	Unit	Input	Output	Flat
2026-10-08	character	$25	Not published—	Not published—
2026-10-09	character	$25	Not published—	Not published—
2026-10-10	character	$25	Not published—	Not published—
2026-10-11	character	$25	Not published—	Not published—
2026-10-12	character	$25	Not published—	Not published—
2026-10-13	character	$25	Not published—	Not published—
2026-10-14	character	$25	Not published—	Not published—
2026-10-15	character	$25	Not published—	Not published—
2026-10-16	character	$25	Not published—	Not published—
2026-10-17	character	$25	Not published—	Not published—
2026-10-18	character	$25	Not published—	Not published—
2026-10-19	character	$25	Not published—	Not published—
2026-10-20	character	$25	Not published—	Not published—
2026-10-21	character	$25	Not published—	Not published—
2026-10-22	character	$25	Not published—	Not published—
2026-10-23	character	$25	Not published—	Not published—
2026-10-24	character	$25	Not published—	Not published—
2026-10-25	character	$25	Not published—	Not published—
2026-10-26	character	$25	Not published—	Not published—
2026-10-27	character	$25	Not published—	Not published—
2026-10-28	character	$25	Not published—	Not published—
2026-10-29	character	$25	Not published—	Not published—
2026-10-30	character	$25	Not published—	Not published—

Alternatives

bosonai/HiggsAudioV2.5$20/character · Compare
Qwen/Qwen3-TTS$20/character · Compare
Qwen/Qwen3-TTS-VoiceDesign$20/character · Compare
inworld-ai/realtime-tts-2$35/character · Compare
Orpheus 3B 0.1 FT$15/1M · Compare
sesame/csm-1b$7/character · Compare

Parameters (1)

tts

Call this model

OpenRouter id deepinfra/inworld-ai/realtime-tts-1.5-mini. InferenceList does not send the request.

curl

curl https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $OPENROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"deepinfra/inworld-ai/realtime-tts-1.5-mini","messages":[{"role":"user","content":"Hello"}]}'

JavaScript

await fetch("https://openrouter.ai/api/v1/chat/completions", {
  method: "POST",
  headers: {
    Authorization: "Bearer " + process.env.OPENROUTER_API_KEY,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    model: "deepinfra/inworld-ai/realtime-tts-1.5-mini",
    messages: [{ role: "user", content: "Hello" }],
  }),
});

Python

import os, json, urllib.request
req = urllib.request.Request(
    "https://openrouter.ai/api/v1/chat/completions",
    data=json.dumps({"model": "deepinfra/inworld-ai/realtime-tts-1.5-mini", "messages": [{"role": "user", "content": "Hello"}]}).encode(),
    headers={"Authorization": "Bearer " + os.environ["OPENROUTER_API_KEY"], "Content-Type": "application/json"},
)
print(urllib.request.urlopen(req).read().decode())

JSON · History JSON