--- title: "OuteTTS vs dia2" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/edwko-outetts-vs-nari-labs-dia2" tools: ["edwko-outetts", "nari-labs-dia2"] --- # OuteTTS vs dia2 *GraphCanon updated Sep 20, 2026* ## Verdict Pick OuteTTS when tags unique to OuteTTS: gguf, llama, transformers, tts; pick dia2 when tags unique to dia2: open-weight. [OuteTTS](https://outeai.com) reports 1.4k GitHub stars, 117 forks, and 41 open issues, last pushed Mar 23, 2026. [dia2](https://github.com/nari-labs/dia2) has 1.2k stars, 102 forks, and 5 open issues, last pushed Nov 29, 2025. Figures are from public GitHub metadata via [OuteTTS's repository](https://github.com/edwko/OuteTTS) and [dia2's repository](https://github.com/nari-labs/dia2). | | [OuteTTS](/tools/edwko-outetts.md) | [dia2](/tools/nari-labs-dia2.md) | | --- | --- | --- | | Tagline | Interface for OuteTTS models using Python | TTS model capable of streaming conversational audio in real-time. | | Stars | 1,440 | 1,180 | | Forks | 117 | 102 | | Open issues | 41 | 5 | | Language | Python | Python | | Adopt for | OuteTTS is a text-to-speech tool for Python that interfaces with its model library and integrates llama.cpp. | - | | 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._ | | [OuteTTS](/tools/edwko-outetts.md) | [dia2](/tools/nari-labs-dia2.md) | | --- | --- | --- | | Days since push | 180d | 295d | | Open issues (now) | 41 | 5 | | Stars delta | +4 (30d) | +20 (30d) | | Owner type | User | Organization | | Full report | [trust report](/tools/edwko-outetts/trust.md) | [trust report](/tools/nari-labs-dia2/trust.md) | ## Decision facts: OuteTTS - **Adopt for:** OuteTTS is a text-to-speech tool for Python that interfaces with its model library and integrates llama.cpp. ## Choose when ### Choose OuteTTS if… - Tags unique to OuteTTS: gguf, llama, transformers, tts. - Use when you need access to OuteTTS-specific models. - More GitHub stars (1.4k 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. - Leaner open-issue backlog (5). ## When NOT to use OuteTTS - Avoid if your hardware does not support the required dependencies for llama.cpp. - Not suitable if you require a tool that does not install llama.cpp by default. ## 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 OuteTTS and dia2? OuteTTS: Interface for OuteTTS models using Python. 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 OuteTTS over dia2? Choose OuteTTS over dia2 when Tags unique to OuteTTS: gguf, llama, transformers, tts; Use when you need access to OuteTTS-specific models; More GitHub stars (1.4k vs 1.2k) - visibility, not fit. ### When should I choose dia2 over OuteTTS? Choose dia2 over OuteTTS when Tags unique to dia2: open-weight; When you need real-time streaming capabilities for text-to-speech applications; Leaner open-issue backlog (5). ### When should I avoid OuteTTS? Avoid if your hardware does not support the required dependencies for llama.cpp. Not suitable if you require a tool that does not install llama.cpp by default. ### 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 OuteTTS or dia2 more popular on GitHub? OuteTTS has more GitHub stars (1,440 vs 1,180). Stars measure visibility, not whether either tool fits your constraints. ### Are OuteTTS and dia2 open source? Yes - both are open-source projects on GitHub (OuteTTS: Apache-2.0, dia2: Apache-2.0). ### Where can I find alternatives to OuteTTS or dia2? GraphCanon lists graph-backed alternatives at [OuteTTS alternatives](/tools/edwko-outetts/alternatives) and [dia2 alternatives](/tools/nari-labs-dia2/alternatives) ([OuteTTS markdown twin](/tools/edwko-outetts/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/edwko-outetts-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, OuteTTS or dia2? OuteTTS: 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 OuteTTS and dia2? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [OuteTTS trust report](/tools/edwko-outetts/trust); [dia2 trust report](/tools/nari-labs-dia2/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=edwko-outetts`](/api/graphcanon/graph?tool=edwko-outetts) - 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/_