AssemblyAI#005
$50 in free API credits for speech-to-text, streaming and LLM Gateway
Catch: Credits are a one-time amount; free-tier streaming concurrency is 5 new streams per minute versus 100 on pay-as-you-go.
No card
| # | Tool / free plan | Limit | Card | Checked | Compare |
|---|---|---|---|---|---|
| 005 | AssemblyAI AI Audio $50 in free API credits for speech-to-text, streaming and LLM Gateway Catch: Credits are a one-time amount; free-tier streaming concurrency is 5 new streams per minute versus 100 on pay-as-you-go. |
Free tier streaming capped at 5 new streams per minute | Card: none | 2026-10-14 | |
| 015 | Cartesia AI Audio Text-to-speech and speech-to-text API with 20K credits a month Catch: No commercial use license or voice cloning on Free; both start on the $5 Pro plan. |
20K credits/month (about 27 min of Sonic-3.6 TTS); $1 of voice-agent usage a month | Changed | 2026-10-14 | |
| 033 | ElevenLabs AI Audio Free text-to-speech credits monthly Catch: No commercial license on Free (it starts on the Starter plan); unused credits do not roll over. |
10,000 credits/month; no rollover on Free | Changed | 2026-10-14 | |
| 114 | Suno AI Audio Free daily song credits Catch: No commercial rights, no song downloads, shared queue. |
50 credits/day, non-commercial | 2026-10-13 |
Cartesia#015
Text-to-speech and speech-to-text API with 20K credits a month
Catch: No commercial use license or voice cloning on Free; both start on the $5 Pro plan.
ElevenLabs#033
Free text-to-speech credits monthly
Catch: No commercial license on Free (it starts on the Starter plan); unused credits do not roll over.
Suno#114
Free daily song credits
Catch: No commercial rights, no song downloads, shared queue.