What's free
2,000 credits/month covering ~25K characters of MARS TTS, 125 min of STT, plus limited watermarked dubbing and translation (incl. 5 OCR pages)
Rate limits
500 chars/generation TTS, 15 min/generation STT; 2,000 credits/month
The catch
Uses its own MARS8 voice models (not OpenAI-compatible). Dubbing output on the free tier is watermarked. Card and commercial terms not stated on the pricing page.
Appears in
Change history
How this free tier has changed since we started tracking it (2026-07-31) — generated from the git history of providers.json.
- 2026-07-31 Added to the hub