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实用计算

TTS API 费用对比

填写每月音频分钟数与每分钟字符数。对比表把 OpenAI 按字符、ElevenLabs 按千字符、Gemini 按 10 秒与 Cartesia credits 计价统一换算为每百万字符与每音频分钟成本,并测算同一月度样例。仅供估算,以各厂商价格页为准。

计算在浏览器完成。不会上传数据。

Same sample for every vendor
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VendorModel / plan$ / 1M chars$ / audio minAt your volume / moNote

Assumptions: OpenAI tts-1 $15 and tts-1-hd $30 per 1M characters (gpt-4o-mini-tts is billed per audio token with no published per-minute rate, so it is left out). ElevenLabs API pay-as-you-go per 1,000 characters: Flash / Turbo and v4 Turbo $0.04, v3 and Multilingual v2 $0.08. Gemini TTS uses Google's official per-10-second audio equivalents (Standard tier; 3.8 Flash / Flash-Lite at promo rates through 2026-12-31, doubling from 2027-01-01) plus text input at ~4 characters per token. Cartesia Sonic is 1 credit per character; "included" rows are plan fee ÷ credits, the last row is the cheapest plan fit with optional overage ($65 / $45 / $38 per 1M). Characters per minute (default 800) converts between units. STT, LLM, telephony and voice-agent fees are not included; voice quality and latency differ — test your own script.

Estimates only. List prices as of 2026-11-01 (Asia/Shanghai); vendor pricing pages prevail. Sources: OpenAI pricing · ElevenLabs API pricing · Gemini API pricing · Cartesia pricing

Voice agent platforms (full call minute)

TTS is only one slice of an AI phone-agent minute. Platforms bundle STT + LLM + TTS + telephony: Vapi charges $0.05/min hosting plus pass-through model costs (≈ $0.08–$0.13/min all-in on its own example), Retell bills components (default $0.11/min = GPT 5 $0.04 + infra $0.055 + voice $0.015). Bland bundles LLM + STT + TTS at $0.14/min (Start) or $0.12/min + $299/mo (Build). Speech-to-speech APIs (OpenAI Realtime, Gemini Live) price audio tokens directly.

语音 AI Agent 平台成本对比 · Vapi 费用计算 · Retell AI 费用计算 · Bland AI 费用计算 · OpenAI Realtime 语音费用计算 · Gemini Live 语音费用计算 · Deepgram API 费用计算 · ElevenLabs TTS 费用计算 · Cartesia TTS 费用计算

Vapi 费用计算 · Retell AI 费用计算 · Cartesia TTS 费用计算 · ElevenLabs TTS 费用计算 · OpenAI TTS 费用计算 · Gemini TTS 费用计算 · OpenAI Realtime 语音费用计算 · Gemini Live 语音费用计算

怎么用

哪个 TTS API 每百万字符最便宜?
按每分钟 800 字符:Gemini 3.8 Flash-Lite TTS 约 $11.38(促销至 2026-12-31)、OpenAI tts-1 $15、Gemini 3.8 Flash 约 $17(促销)、OpenAI tts-1-hd $30、Cartesia Scale 约 $37.38(套餐内)、Gemini 3.1 Flash TTS 预览约 $37.75、ElevenLabs Flash/Turbo $40、Eleven v3 / Multilingual v2 $80。Gemini 按音频时长计费,每百万字符成本取决于语速。
每月 1 万分钟音频要多少钱?
按每分钟 800 字符(800 万字符):OpenAI tts-1 $120、tts-1-hd $240,ElevenLabs Flash/Turbo $320、Eleven v3 $640,Gemini 3.8 Flash TTS 约 $136(促销),Flash-Lite 约 $91,Gemini 3.1 Flash 预览约 $302,Cartesia Scale $299(800 万 credits 正好够用)。
为什么同时按分钟和按字符对比?
各家计价单位不同:字符、每字符 credits 或音频秒数。换算成每音频分钟可看出语音 Agent/IVR 单分钟成本;每百万字符更适合脚本与文章。语速(每分钟 750–900 字符)会影响结果。
包含音质或延迟比较吗?
不包含,本页只比较标价。延迟、克隆、语种与音质各不相同,请用自己的脚本测试。完整语音 Agent 每分钟还需加上 STT、LLM 与电话费用。
数据会上传吗?
不会。这些计算和二维码都在你的浏览器里完成。