--- title: "dia2 vs supertonic" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/nari-labs-dia2-vs-supertone-inc-supertonic" tools: ["nari-labs-dia2", "supertone-inc-supertonic"] --- # dia2 vs supertonic *GraphCanon updated Sep 20, 2026* ## Verdict Pick dia2 when dia2 is primarily Python; supertonic is Swift; pick supertonic when supertonic is primarily Swift; dia2 is Python. [dia2](https://github.com/nari-labs/dia2) reports 1.2k GitHub stars, 102 forks, and 5 open issues, last pushed Nov 29, 2025. [supertonic](https://huggingface.co/spaces/Supertone/supertonic-3) has 14k stars, 1.5k forks, and 131 open issues, last pushed Sep 9, 2026. Figures are from public GitHub metadata via [dia2's repository](https://github.com/nari-labs/dia2) and [supertonic's repository](https://github.com/supertone-inc/supertonic). | | [dia2](/tools/nari-labs-dia2.md) | [supertonic](/tools/supertone-inc-supertonic.md) | | --- | --- | --- | | Tagline | TTS model capable of streaming conversational audio in real-time. | Lightning-Fast On-Device Multilingual TTS via ONNX | | Stars | 1,180 | 13,785 | | Forks | 102 | 1,549 | | Open issues | 5 | 131 | | Language | Python | Swift | | Adopt for | - | Supertonic provides fast multilingual TTS on-device using ONNX runtime, native to Swift with wide language support. | | Persona | - | - | | Runtime | - | - | | License | Apache-2.0 | MIT | | Categories | Speech & Audio | Speech & Audio | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [dia2](/tools/nari-labs-dia2.md) | [supertonic](/tools/supertone-inc-supertonic.md) | | --- | --- | --- | | Maintenance | Slowing (36%) | Archived (8%) | | Days since push | 295d | 11d | | Archived on GitHub | No | Yes | | Open issues (now) | 5 | 131 | | Stars delta | +20 (30d) | +242 (30d) | | Open issues delta | 0 (30d) | +5 (30d) | | Full report | [trust report](/tools/nari-labs-dia2/trust.md) | [trust report](/tools/supertone-inc-supertonic/trust.md) | ## Decision facts: supertonic - **Adopt for:** Supertonic provides fast multilingual TTS on-device using ONNX runtime, native to Swift with wide language support. ## Choose when ### Choose dia2 if… - dia2 is primarily Python; supertonic is Swift. - License: dia2 is Apache-2.0, supertonic is MIT. - Tags unique to dia2: open-weight, text-to-speech. - When you need real-time streaming capabilities for text-to-speech applications. ### Choose supertonic if… - supertonic is primarily Swift; dia2 is Python. - License: supertonic is MIT, dia2 is Apache-2.0. - Tags unique to supertonic: cpp, csharp, flutter, go. - When deploying text-to-speech functionality requires swift performance on-device in multiple languages ## When NOT to use dia2 - For projects aimed at batch processing or non-realtime TTS applications where instantaneous audio output isn't required. - If you are looking for an open-source model that does not include specific proprietary components like the Kyutai Mimi codec. ## When NOT to use supertonic - If the application is multilingual but does not require on-device processing capabilities - For teams preferring a different primary development language other than Swift or those lacking familiarity with ONNX implementation details ## Common questions ### What is the difference between dia2 and supertonic? dia2: TTS model capable of streaming conversational audio in real-time.. supertonic: Lightning-Fast On-Device Multilingual TTS via ONNX. See the comparison table for live GitHub stats and shared categories. ### When should I choose dia2 over supertonic? Choose dia2 over supertonic when dia2 is primarily Python; supertonic is Swift; License: dia2 is Apache-2.0, supertonic is MIT; Tags unique to dia2: open-weight, text-to-speech; When you need real-time streaming capabilities for text-to-speech applications. ### When should I choose supertonic over dia2? Choose supertonic over dia2 when supertonic is primarily Swift; dia2 is Python; License: supertonic is MIT, dia2 is Apache-2.0; Tags unique to supertonic: cpp, csharp, flutter, go; When deploying text-to-speech functionality requires swift performance on-device in multiple languages. ### When should I avoid dia2? For projects aimed at batch processing or non-realtime TTS applications where instantaneous audio output isn't required. If you are looking for an open-source model that does not include specific proprietary components like the Kyutai Mimi codec. ### When should I avoid supertonic? If the application is multilingual but does not require on-device processing capabilities For teams preferring a different primary development language other than Swift or those lacking familiarity with ONNX implementation details ### Is dia2 or supertonic more popular on GitHub? supertonic has more GitHub stars (13,785 vs 1,180). Stars measure visibility, not whether either tool fits your constraints. ### Are dia2 and supertonic open source? Yes - both are open-source projects on GitHub (dia2: Apache-2.0, supertonic: MIT). ### Where can I find alternatives to dia2 or supertonic? GraphCanon lists graph-backed alternatives at [dia2 alternatives](/tools/nari-labs-dia2/alternatives) and [supertonic alternatives](/tools/supertone-inc-supertonic/alternatives) ([dia2 markdown twin](/tools/nari-labs-dia2/alternatives.md), [supertonic markdown twin](/tools/supertone-inc-supertonic/alternatives.md)), ranked by typed relationship edges rather than popularity votes. ### Is there a machine-readable version of this comparison? Yes. The markdown twin at [this comparison](/compare/nari-labs-dia2-vs-supertone-inc-supertonic.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, dia2 or supertonic? dia2: Slowing. supertonic: Archived. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance. ### Where are the full trust reports for dia2 and supertonic? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [dia2 trust report](/tools/nari-labs-dia2/trust); [supertonic trust report](/tools/supertone-inc-supertonic/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=nari-labs-dia2`](/api/graphcanon/graph?tool=nari-labs-dia2) - LLM index: [/llms.txt](/llms.txt) - Full corpus: [/llms-full.txt](/llms-full.txt) _GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_