--- title: "ChatTTS_colab vs dia" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/6drf21e-chattts-colab-vs-nari-labs-dia" tools: ["6drf21e-chattts-colab", "nari-labs-dia"] --- # ChatTTS_colab vs dia *GraphCanon updated Jul 29, 2026* ## Verdict Pick ChatTTS_colab if chatTTS_colab offers one-click deployment for ChatTTS text-to-speech applications on Colab and supports voice style selection, long audio generation, and streaming output; 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. [ChatTTS_colab](https://github.com/6drf21e/ChatTTS_colab) reports 2.6k GitHub stars, 324 forks, and 78 open issues, last pushed May 31, 2026. [dia](https://github.com/nari-labs/dia) has 19k stars, 1.7k forks, and 91 open issues, last pushed Nov 19, 2025. Figures are from public GitHub metadata via [ChatTTS_colab's repository](https://github.com/6drf21e/ChatTTS_colab) and [dia's repository](https://github.com/nari-labs/dia). | | [ChatTTS_colab](/tools/6drf21e-chattts-colab.md) | [dia](/tools/nari-labs-dia.md) | | --- | --- | --- | | Tagline | 一键部署的ChatTTS项目，支持流式输出、音色抽卡和长音频生成。 | A TTS model for generating ultra-realistic dialogue | | Stars | 2,578 | 19,361 | | Forks | 324 | 1,688 | | Open issues | 78 | 91 | | Language | Python | Python | | Adopt for | ChatTTS_colab offers one-click deployment for ChatTTS text-to-speech applications on Colab and supports voice style selection, long audio generation, and streaming output. | 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 | | Categories | Speech & Audio | Speech & Audio | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [ChatTTS_colab](/tools/6drf21e-chattts-colab.md) | [dia](/tools/nari-labs-dia.md) | | --- | --- | --- | | Maintenance | Steady (60%) | Slowing (36%) | | Days since push | 59d | 251d | | Open issues (now) | 78 | 91 | | Owner type | User | Organization | | Full report | [trust report](/tools/6drf21e-chattts-colab/trust.md) | [trust report](/tools/nari-labs-dia/trust.md) | ## Shared compatibility - **Python**: [ChatTTS_colab](/tools/6drf21e-chattts-colab.md) - Python runtime; [dia](/tools/nari-labs-dia.md) - Python runtime ## Decision facts: ChatTTS_colab - **Adopt for:** ChatTTS_colab offers one-click deployment for ChatTTS text-to-speech applications on Colab and supports voice style selection, long audio generation, and streaming output. ## 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 ChatTTS_colab if… - Tags unique to ChatTTS_colab: chattts, colab-notebook. - When you want a simplified setup with minimal configuration needed in a browser-based environment using Google Colab. - More recently updated (last pushed May 31, 2026). ### 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 2.6k) - visibility, not fit. ## When NOT to use ChatTTS_colab - If your project needs do not include the ability to generate audio on-the-fly or manage multiple character readings. - When you want to avoid Colab's resource limitations that could affect performance for heavy text-to-speech tasks. - In scenarios where offline package support is not necessary, as this might introduce unnecessary complexities. ## 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 ## Common questions ### What is the difference between ChatTTS_colab and dia? ChatTTS_colab: 一键部署的ChatTTS项目，支持流式输出、音色抽卡和长音频生成。. dia: A TTS model for generating ultra-realistic dialogue. See the comparison table for live GitHub stats and shared categories. ### When should I choose ChatTTS_colab over dia? Choose ChatTTS_colab over dia when Tags unique to ChatTTS_colab: chattts, colab-notebook; When you want a simplified setup with minimal configuration needed in a browser-based environment using Google Colab; More recently updated (last pushed May 31, 2026). ### When should I choose dia over ChatTTS_colab? Choose dia over ChatTTS_colab 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 2.6k) - visibility, not fit. ### When should I avoid ChatTTS_colab? If your project needs do not include the ability to generate audio on-the-fly or manage multiple character readings. When you want to avoid Colab's resource limitations that could affect performance for heavy text-to-speech tasks. In scenarios where offline package support is not necessary, as this might introduce unnecessary complexities. ### 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 ### Is ChatTTS_colab or dia more popular on GitHub? dia has more GitHub stars (19,361 vs 2,578). Stars measure visibility, not whether either tool fits your constraints. ### Are ChatTTS_colab and dia open source? Yes - both are open-source projects on GitHub. ### Where can I find alternatives to ChatTTS_colab or dia? GraphCanon lists graph-backed alternatives at [ChatTTS_colab alternatives](/tools/6drf21e-chattts-colab/alternatives) and [dia alternatives](/tools/nari-labs-dia/alternatives) ([ChatTTS_colab markdown twin](/tools/6drf21e-chattts-colab/alternatives.md), [dia markdown twin](/tools/nari-labs-dia/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/6drf21e-chattts-colab-vs-nari-labs-dia.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, ChatTTS_colab or dia? ChatTTS_colab: Steady. dia: 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 ChatTTS_colab and dia? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [ChatTTS_colab trust report](/tools/6drf21e-chattts-colab/trust); [dia trust report](/tools/nari-labs-dia/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=6drf21e-chattts-colab`](/api/graphcanon/graph?tool=6drf21e-chattts-colab) - 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/_