Herramientas de voz y audio con IA gratis
TTS, transcripción y música con IA gratis - créditos de ElevenLabs, Suno y Deepgram, verificados.
19 ofertas revisadas y verificadas · Ver las 231 ofertas
El stack de audio gratuito más sólido ahora mismo, dividido por tarea.
- Voz y TTS: el plan permanente de ElevenLabs (10,000 créditos al mes), Cartesia (20,000 créditos mensuales para voz en tiempo real), Amazon Polly (5M caracteres al mes durante el primer año).
- Música con IA: el plan gratuito de Suno (50 créditos al día).
- Créditos de transcripción: Deepgram $200, Speechmatics $100, AssemblyAI $50, Gladia €50 - bonos únicos, sin ciclo mensual.
La letra pequeña: los planes de TTS gratuitos suelen restringir el uso comercial y limitar caracteres o créditos al mes, y los créditos únicos sirven para evaluar, no para producción. Cada fila se obtuvo y probó; los límites de abajo son los que encontramos.
Todas las herramientas de audio, mayor valor gratuito primero
Los datos de las ofertas se verifican y se muestran en inglés.
| Herramienta | Qué es gratis | Límites clave | ¿Pide tarjeta? | Estado |
|---|---|---|---|---|
| 10,000 credits/monthresets monthly | 10,000 credits per month, shared across all products · No commercial license · No… | Sin tarjeta | Verified · Oct 12, 2026 | |
| $200one-time | Applies to the Pay As You Go plan · No expiration on the credit · No minimums · Moves to… | Sin tarjeta | Verified · Oct 12, 2026 | |
| 50 credits/dayresets daily | 50 credits per day, no carryover · No commercial rights · No monthly song downloads ·… | Sin tarjeta | Verified · Oct 12, 2026 | |
| $100one-time | $100 sign-up credit lasts 12 months · 2 concurrent real-time sessions on the Free tier ·… | Sin tarjeta | Verified · Oct 12, 2026 | |
| $5,500one-time | 33,000,000 characters (~680+ hours of Agents usage) over 12 months · Startups and small… | Sin tarjeta | Verified · Oct 12, 2026 | |
| $200one-time | Standard voices: 5 million characters/month (no stated time limit) · Neural voices: 1… | Sin tarjeta | Verified · Oct 12, 2026 | |
| $50one-time | Free-tier streaming concurrency: 5 new streams per minute · Free-tier accounts may… | Sin tarjeta | Verified · Oct 12, 2026 | |
| $20one-time | New accounts start on the free tier with $20 in credits · 10,000 characters per month… | Sin tarjeta | Verified · Oct 12, 2026 | |
| $5one-time | One-time $5 credit; no recurring free tier · 203 models included with one API key ·… | Sin tarjeta | Verified · Oct 12, 2026 | |
| 1,000,000 tokens | 1,000,000 free tokens (Serverless, token-billed models) · 60 minutes free audio… | Sin tarjeta | Verified · Oct 12, 2026 | |
| 20,000 credits/monthresets monthly | 20K model credits per month · $1 prepaid agents balance per month · Sonic-3.6 TTS: about… | Sin tarjeta | Verified · Oct 12, 2026 | |
| 50 requests/dayresets daily | 20 requests per minute on all free variants · 50 requests per day for accounts that have… | Sin tarjeta | Verified · Oct 12, 2026 | |
| 25 credits | 25 free credits, granted on Google social-login signup · One-time grant for initial… | Sin tarjeta | Verified · Oct 12, 2026 | |
| 5 requests/dayresets daily | 5 free video generations per 24 hours (rolling reset) · Up to 15 seconds per video ·… | Sin tarjeta | Verified · Oct 12, 2026 | |
| Free tierongoing | Free plan includes limited AI features versus Pro and Business plans · File storage… | Sin tarjeta | Verified · Oct 12, 2026 | |
| Free credits | One-time 50 EUR credit at signup, valid for one year, no monthly reset · Roughly 312 h… | Sin tarjeta | Verified · Oct 12, 2026 | |
| Free tierongoing | No expiration · Free models include gemini-3.8-flash, gemini-3.6-flash,… | Sin tarjeta | Verified · Oct 12, 2026 | |
| Free tierongoing | Free for a limited number of runs; exact cap not published · Free models (11):… | Sin tarjeta | Verified · Oct 12, 2026 | |
| Free credits | INR 100 one-time signup credits · Credits never expire and work across all Sarvam APIs ·… | Sin tarjeta | Verified · Oct 12, 2026 | |
| 500,000 tokens | No expiration (subject to change) · 500K tokens per LLM model, 2M video tokens, 200… | Sin tarjeta | Listed · Sep 12, 2026 | |
| 60 minutes/monthresets monthly (1st) | 60 transcription minutes per calendar month · Up to 2 AI questions per recording on the… | Sin tarjeta | Listed · Oct 21, 2026 | |
| 5 requests/dayresets daily | Up to 5 jobs per browser per UTC day (two-track and four-track jobs share the allowance)… | Sin tarjeta | Listed · Oct 21, 2026 | |
| 1 credits | 1 free song attempt at sign-up (1 credit) that generates 2 songs to choose from ·… | Sin tarjeta | Listed · Oct 21, 2026 |
Esta sección está en inglés.
- ElevenLabs as the default free TTS - best voice quality at 10,000 monthly credits; its startup program extends it dramatically if you are incorporated.
- Deepgram's $200 credit for speech-to-text - the most generous grant we have verified, no card; Speechmatics' $100, AssemblyAI's $50, and Gladia's €50 as second opinions (Gladia is tuned for European languages).
- Suno's free plan for AI music - the only verified free route to full songs.
- Cartesia for real-time voice agents, and Amazon Polly for sheer volume - 5M characters a month free for a year.
Audio tools hide their real limits behind "credits", so we convert them: we claim each free tier or grant, then synthesize or transcribe real audio.
- We record what a credit buys, what a minute costs, and whether a card was requested.
- We re-check monthly. The verified date on each row is the day we last confirmed the numbers.
- We pull providers that shrink allowances or repoint credits to paid-only models once the free tier stops being useful.