Ferramentas de voz e áudio com IA grátis
TTS, transcrição e música com IA grátis - créditos de ElevenLabs, Suno e Deepgram, verificados.
19 ofertas checadas e verificadas · Ver todas as 231 ofertas
A stack de áudio gratuita mais forte hoje, dividida por tarefa.
- Voz e TTS: plano permanente da ElevenLabs (10,000 créditos por mês), Cartesia (20,000 créditos mensais para voz em tempo real), Amazon Polly (5M caracteres por mês no primeiro ano).
- Música com IA: plano gratuito do Suno (50 créditos por dia).
- Créditos de transcrição: Deepgram $200, Speechmatics $100, AssemblyAI $50, Gladia €50 - bônus únicos, sem ciclo mensal.
A pegadinha: planos de TTS gratuitos costumam restringir o uso comercial e limitar caracteres ou créditos por mês, e créditos únicos servem para avaliar, não para produção. Cada linha foi resgatada e testada; os limites abaixo são os que encontramos.
Todas as ferramentas de áudio, maior valor gratuito primeiro
Os dados das ofertas são verificados e exibidos em inglês.
| Ferramenta | O que é grátis | Principais limites | Exige cartão? | Status |
|---|---|---|---|---|
| 10,000 credits/monthresets monthly | 10,000 credits per month, shared across all products · No commercial license · No… | Sem cartão | Verified · Oct 12, 2026 | |
| $200one-time | Applies to the Pay As You Go plan · No expiration on the credit · No minimums · Moves to… | Sem cartão | Verified · Oct 12, 2026 | |
| 50 credits/dayresets daily | 50 credits per day, no carryover · No commercial rights · No monthly song downloads ·… | Sem cartão | Verified · Oct 12, 2026 | |
| $100one-time | $100 sign-up credit lasts 12 months · 2 concurrent real-time sessions on the Free tier ·… | Sem cartão | Verified · Oct 12, 2026 | |
| $5,500one-time | 33,000,000 characters (~680+ hours of Agents usage) over 12 months · Startups and small… | Sem cartão | Verified · Oct 12, 2026 | |
| $200one-time | Standard voices: 5 million characters/month (no stated time limit) · Neural voices: 1… | Sem cartão | Verified · Oct 12, 2026 | |
| $50one-time | Free-tier streaming concurrency: 5 new streams per minute · Free-tier accounts may… | Sem cartão | Verified · Oct 12, 2026 | |
| $20one-time | New accounts start on the free tier with $20 in credits · 10,000 characters per month… | Sem cartão | Verified · Oct 12, 2026 | |
| $5one-time | One-time $5 credit; no recurring free tier · 203 models included with one API key ·… | Sem cartão | Verified · Oct 12, 2026 | |
| 1,000,000 tokens | 1,000,000 free tokens (Serverless, token-billed models) · 60 minutes free audio… | Sem cartão | 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… | Sem cartão | Verified · Oct 12, 2026 | |
| 50 requests/dayresets daily | 20 requests per minute on all free variants · 50 requests per day for accounts that have… | Sem cartão | Verified · Oct 12, 2026 | |
| 25 credits | 25 free credits, granted on Google social-login signup · One-time grant for initial… | Sem cartão | Verified · Oct 12, 2026 | |
| 5 requests/dayresets daily | 5 free video generations per 24 hours (rolling reset) · Up to 15 seconds per video ·… | Sem cartão | Verified · Oct 12, 2026 | |
| Free tierongoing | Free plan includes limited AI features versus Pro and Business plans · File storage… | Sem cartão | Verified · Oct 12, 2026 | |
| Free credits | One-time 50 EUR credit at signup, valid for one year, no monthly reset · Roughly 312 h… | Sem cartão | Verified · Oct 12, 2026 | |
| Free tierongoing | No expiration · Free models include gemini-3.8-flash, gemini-3.6-flash,… | Sem cartão | Verified · Oct 12, 2026 | |
| Free tierongoing | Free for a limited number of runs; exact cap not published · Free models (11):… | Sem cartão | Verified · Oct 12, 2026 | |
| Free credits | INR 100 one-time signup credits · Credits never expire and work across all Sarvam APIs ·… | Sem cartão | Verified · Oct 12, 2026 | |
| 500,000 tokens | No expiration (subject to change) · 500K tokens per LLM model, 2M video tokens, 200… | Sem cartão | Listed · Sep 12, 2026 | |
| 60 minutes/monthresets monthly (1st) | 60 transcription minutes per calendar month · Up to 2 AI questions per recording on the… | Sem cartão | 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)… | Sem cartão | Listed · Oct 21, 2026 | |
| 1 credits | 1 free song attempt at sign-up (1 credit) that generates 2 songs to choose from ·… | Sem cartão | Listed · Oct 21, 2026 |
Esta seção está em inglês.
- 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.