--- title: "dia vs dia2" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/nari-labs-dia-vs-nari-labs-dia2" tools: ["nari-labs-dia", "nari-labs-dia2"] --- # dia vs dia2 *GraphCanon updated Jul 30, 2026* ## Verdict Pick dia when tags unique to dia: dialogue-generation, tts; pick dia2 when tags unique to dia2: open-weight. [dia](https://github.com/nari-labs/dia) reports 19k GitHub stars, 1.7k forks, and 91 open issues, last pushed Nov 19, 2025. [dia2](https://github.com/nari-labs/dia2) has 1.2k stars, 99 forks, and 5 open issues, last pushed Nov 29, 2025. Figures are from public GitHub metadata via [dia's repository](https://github.com/nari-labs/dia) and [dia2's repository](https://github.com/nari-labs/dia2). | | [dia](/tools/nari-labs-dia.md) | [dia2](/tools/nari-labs-dia2.md) | | --- | --- | --- | | Tagline | A TTS model for generating ultra-realistic dialogue | TTS model capable of streaming conversational audio in real-time. | | Stars | 19,361 | 1,160 | | Forks | 1,688 | 99 | | Open issues | 91 | 5 | | Language | Python | Python | | Adopt for | Dia is an open-weight text-to-dialogue model providing full control over scripts and voices, ideal for generating ultra-realistic dialogue. | - | | Persona | - | - | | Runtime | - | - | | License | Apache-2.0 | Apache-2.0 | | Categories | Speech & Audio | Speech & Audio | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [dia](/tools/nari-labs-dia.md) | [dia2](/tools/nari-labs-dia2.md) | | --- | --- | --- | | Days since push | 251d | 243d | | Open issues (now) | 91 | 5 | | Full report | [trust report](/tools/nari-labs-dia/trust.md) | [trust report](/tools/nari-labs-dia2/trust.md) | ## 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. ## Choose when ### Choose dia if… - Tags unique to dia: dialogue-generation, tts. - When you require precise control over voice and script in the creation of highly realistic dialogues - More GitHub stars (19k vs 1.2k) - visibility, not fit. ### Choose dia2 if… - Tags unique to dia2: open-weight. - When you need real-time streaming capabilities for text-to-speech applications. - More recently updated (last pushed Nov 29, 2025). ## 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 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. ## Common questions ### What is the difference between dia and dia2? dia: A TTS model for generating ultra-realistic dialogue. dia2: TTS model capable of streaming conversational audio in real-time.. See the comparison table for live GitHub stats and shared categories. ### When should I choose dia over dia2? Choose dia over dia2 when Tags unique to dia: dialogue-generation, tts; When you require precise control over voice and script in the creation of highly realistic dialogues; More GitHub stars (19k vs 1.2k) - visibility, not fit. ### When should I choose dia2 over dia? Choose dia2 over dia when Tags unique to dia2: open-weight; When you need real-time streaming capabilities for text-to-speech applications; More recently updated (last pushed Nov 29, 2025). ### 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 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. ### Is dia or dia2 more popular on GitHub? dia has more GitHub stars (19,361 vs 1,160). Stars measure visibility, not whether either tool fits your constraints. ### Are dia and dia2 open source? Yes - both are open-source projects on GitHub (dia: Apache-2.0, dia2: Apache-2.0). ### Where can I find alternatives to dia or dia2? GraphCanon lists graph-backed alternatives at [dia alternatives](/tools/nari-labs-dia/alternatives) and [dia2 alternatives](/tools/nari-labs-dia2/alternatives) ([dia markdown twin](/tools/nari-labs-dia/alternatives.md), [dia2 markdown twin](/tools/nari-labs-dia2/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-nari-labs-dia2.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, dia or dia2? dia: Slowing. dia2: Slowing. 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 dia2? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [dia trust report](/tools/nari-labs-dia/trust); [dia2 trust report](/tools/nari-labs-dia2/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/_