--- title: "dia vs supertonic" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/nari-labs-dia-vs-supertone-inc-supertonic" tools: ["nari-labs-dia", "supertone-inc-supertonic"] --- # dia vs supertonic *GraphCanon updated Sep 20, 2026* ## Verdict Pick dia if dia is an open-weight text-to-dialogue model providing full control over scripts and voices, ideal for generating ultra-realistic dialogue; pick supertonic if supertonic provides fast multilingual TTS on-device using ONNX runtime, native to Swift with wide language support. [dia](https://github.com/nari-labs/dia) reports 19k GitHub stars, 1.7k forks, and 91 open issues, last pushed Nov 19, 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 [dia's repository](https://github.com/nari-labs/dia) and [supertonic's repository](https://github.com/supertone-inc/supertonic). | | [dia](/tools/nari-labs-dia.md) | [supertonic](/tools/supertone-inc-supertonic.md) | | --- | --- | --- | | Tagline | A TTS model for generating ultra-realistic dialogue | Lightning-Fast On-Device Multilingual TTS via ONNX | | Stars | 19,400 | 13,785 | | Forks | 1,690 | 1,549 | | Open issues | 91 | 131 | | Language | Python | Swift | | Adopt for | Dia is an open-weight text-to-dialogue model providing full control over scripts and voices, ideal for generating ultra-realistic dialogue. | 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._ | | [dia](/tools/nari-labs-dia.md) | [supertonic](/tools/supertone-inc-supertonic.md) | | --- | --- | --- | | Maintenance | Slowing (36%) | Archived (8%) | | Days since push | 304d | 11d | | Archived on GitHub | No | Yes | | Open issues (now) | 91 | 131 | | Stars delta | +39 (30d) | +242 (30d) | | Open issues delta | 0 (30d) | +5 (30d) | | Full report | [trust report](/tools/nari-labs-dia/trust.md) | [trust report](/tools/supertone-inc-supertonic/trust.md) | ## Shared compatibility - **Python**: [dia](/tools/nari-labs-dia.md) - Python runtime; [supertonic](/tools/supertone-inc-supertonic.md) - Python runtime ## Decision facts: dia - **Adopt for:** Dia is an open-weight text-to-dialogue model providing full control over scripts and voices, ideal for generating ultra-realistic dialogue. ## 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 dia if… - dia is primarily Python; supertonic is Swift. - License: dia is Apache-2.0, supertonic is MIT. - Tags unique to dia: dialogue-generation, text-to-speech, tts. - When you require precise control over voice and script in the creation of highly realistic dialogues ### Choose supertonic if… - supertonic is primarily Swift; dia is Python. - License: supertonic is MIT, dia 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 dia - If your setup lacks a GPU, as Dia has not yet added CPU support - In scenarios where immediate real-time performance is critical since the first run could be longer due to additional codec downloads ## 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 dia and supertonic? dia: A TTS model for generating ultra-realistic dialogue. supertonic: Lightning-Fast On-Device Multilingual TTS via ONNX. See the comparison table for live GitHub stats and shared categories. ### When should I choose dia over supertonic? Choose dia over supertonic when dia is primarily Python; supertonic is Swift; License: dia is Apache-2.0, supertonic is MIT; Tags unique to dia: dialogue-generation, text-to-speech, tts; When you require precise control over voice and script in the creation of highly realistic dialogues. ### When should I choose supertonic over dia? Choose supertonic over dia when supertonic is primarily Swift; dia is Python; License: supertonic is MIT, dia 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 dia? If your setup lacks a GPU, as Dia has not yet added CPU support In scenarios where immediate real-time performance is critical since the first run could be longer due to additional codec downloads ### 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 dia or supertonic more popular on GitHub? dia has more GitHub stars (19,400 vs 13,785). Stars measure visibility, not whether either tool fits your constraints. ### Are dia and supertonic open source? Yes - both are open-source projects on GitHub (dia: Apache-2.0, supertonic: MIT). ### Where can I find alternatives to dia or supertonic? GraphCanon lists graph-backed alternatives at [dia alternatives](/tools/nari-labs-dia/alternatives) and [supertonic alternatives](/tools/supertone-inc-supertonic/alternatives) ([dia markdown twin](/tools/nari-labs-dia/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-dia-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, dia or supertonic? dia: 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 dia and supertonic? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [dia trust report](/tools/nari-labs-dia/trust); [supertonic trust report](/tools/supertone-inc-supertonic/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=nari-labs-dia`](/api/graphcanon/graph?tool=nari-labs-dia) - 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/_