# Fish Audio S2 Pro vs OmniVoice (slim)

> OmniVoice scores 56.9 (C) to Fish Audio S2 Pro's 52.5 (D) for text-to-speech. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/fish-audio-s2-pro-vs-omnivoice.md (~2,250 tokens) · this version ~530 tokens · JSON https://www.anchorterminal.com/compare/fish-audio-s2-pro-vs-omnivoice.json · canonical https://www.anchorterminal.com/compare/fish-audio-s2-pro-vs-omnivoice
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-23
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)

OmniVoice scores 56.9 (C) on agent readiness against Fish Audio S2 Pro's 52.5 (D), and leads in 2 of 5 scored categories. Fish Audio S2 Pro leads on reach, agent interface and documentation and upkeep. Both do text-to-speech.

- Fish Audio S2 Pro: D 52.5, rank #89 of 107 open-weight models · https://www.anchorterminal.com/tools/fish-audio-s2-pro.min.md
- OmniVoice: C 56.9, rank #75 of 107 open-weight models · https://www.anchorterminal.com/tools/omnivoice.min.md
- Fish Audio S2 Pro, good for Research and hobby agents with a 24 GB GPU that need local voice cloning and multi-speaker, tag-directed speech in many languages Ahead on Reach, 50 against 40; Agent interface, 70 against 50; Documentation and upkeep, 56 against 48.
- OmniVoice, good for Research and non-commercial agents that need cloning or designed voices in low-resource languages on a small GPU Ahead on Capability, 86 against 61; Risk, 35 against 30.

| Category | Fish Audio S2 Pro | OmniVoice |
| --- | --- | --- |
| Capability (35%) | 61 | 86 |
| Reach (25%) | 50 | 40 |
| Risk (20%) | 30 | 35 |
| Agent interface (10%) | 70 | 50 |
| Documentation and upkeep (10%) | 56 | 48 |

| Fact (where they differ) | Fish Audio S2 Pro | OmniVoice |
| --- | --- | --- |
| Vendor | Fish Audio | k2-fsa (Next-gen Kaldi) |
| Licence | Fish Audio Research License (weights; research and non-commercial use only); the fish-speech code that runs it is under the Fish Audio Community License 1.0 since 13 October 2026 | CC-BY-NC (weights, per the card); Apache-2.0 (code) |
| Last release | 2026-03-11 | 2026-07-03 |
| Terms last updated |  | no document linked |