LLM Comparison
IndexTTS vs VoxCPM
Side-by-side specs, pricing & capabilities · Updated August 2026
Add to comparison
2/6 modelsSame tier:
| Organization | ||
| OpenTools Score | ||
| Family | IndexTTS | VoxCPM |
| Status | Current | Current |
| Release Date | Aug 2026 | Apr 2026 |
| Context Window | — | 4K tokens |
| Input Price | Free | Free |
| Output Price | Free | Free |
| Pricing Notes | Open model weights; hosting and GPU inference costs depend on the deployment environment. | Open-source Apache-2.0 code and model weights; self-hosting compute costs apply. |
| Capabilities | text-to-speechvoice-cloningmultilingualemotion-controlpronunciation-controlspeed-control | text-to-speechmultilingualvoice-cloningvoice-designstreaming-inference |
| Training Cutoff | Public release timeline through 2026-08 | VoxCPM2 trained on over 2 million hours of multilingual speech |
| API Identifier | IndexTeam/IndexTTS-2.5 | openbmb/VoxCPM2 |
| View IndexTTS | View VoxCPM |
Cost Calculator
Enter your expected monthly token usage to compare costs.
| Model | Input | Output | Total / mo | vs Best |
|---|---|---|---|---|
| IndexTTSCheapest | $0.00 | $0.00 | $0.00 | — |
| VoxCPMCheapest | $0.00 | $0.00 | $0.00 | — |
IndexTeam
IndexTTS
IndexTTS is a controllable zero-shot text-to-speech model family from IndexTeam and Bilibili. The 2.5 release clones voices from a single reference clip, supports Chinese, English, Japanese, Spanish, and Arabic, and reports a 2.28x real-time-factor improvement over IndexTTS 2 in its technical report.
OpenBMB
VoxCPM
VoxCPM is OpenBMB’s tokenizer-free text-to-speech model family. VoxCPM2 is a 2B-parameter release for multilingual speech generation, voice design, and controllable voice cloning.
More Comparisons
Looking for more AI models?
Browse All LLMs