# Vachana TTS voice cloning

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## Gnani unveils sovereign AI stack 'Artha' featuring open-weight model, enterprise agents

DevFeed: [Gnani unveils sovereign AI stack 'Artha' featuring open-weight model, enterprise agents](<https://devfeed.tech/articles/gnani-unveils-sovereign-ai-stack-artha-featuring-open-weight-model-enterprise-agents-56445.md>)

Original publisher: [Read original article](<https://indianexpress.com/article/technology/artificial-intelligence/gnani-sovereign-ai-artha-open-weight-model-agents-10853735/>)

Author: Karan Mahadik

Published: 2026-08-28T14:46:37Z

Content type: news

Language: en

Sources: [Technology | The Indian Express](<https://devfeed.tech/sources/technology-the-indian-express.md>)

Topics: [Large Language Model](<https://devfeed.tech/topics/llm.md>), [Sovereign AI](<https://devfeed.tech/topics/sovereign-ai.md>), [AI Models](<https://devfeed.tech/topics/ai-models.md>), [Agentic AI](<https://devfeed.tech/topics/what-is-agentic-ai.md>), [Mixture of Experts (MoE)](<https://devfeed.tech/topics/mixture-of-experts-moe.md>), [AI Platform](<https://devfeed.tech/topics/ai-platform.md>), [Open Source](<https://devfeed.tech/topics/open-source.md>), [Open Source Models & Datasets](<https://devfeed.tech/topics/open-source-models-datasets.md>)

Tags: [agents](<https://devfeed.tech/tags/agents.md>), [ai](<https://devfeed.tech/tags/ai.md>), [artificial-intelligence](<https://devfeed.tech/tags/artificial-intelligence.md>), [build](<https://devfeed.tech/tags/build.md>), [c-p-radhakrishnan-gnani-launch](<https://devfeed.tech/tags/c-p-radhakrishnan-gnani-launch.md>), [chinese-open-weight-ai-models](<https://devfeed.tech/tags/chinese-open-weight-ai-models.md>), [costs](<https://devfeed.tech/tags/costs.md>), [enterprise](<https://devfeed.tech/tags/enterprise.md>), [evon-v3-3-open-weight-llm](<https://devfeed.tech/tags/evon-v3-3-open-weight-llm.md>), [ganesh-gopalan-gnani-ai](<https://devfeed.tech/tags/ganesh-gopalan-gnani-ai.md>), [gnani-ai](<https://devfeed.tech/tags/gnani-ai.md>), [gnani-artha-sovereign-ai-stack](<https://devfeed.tech/tags/gnani-artha-sovereign-ai-stack.md>), [gnani-plexus-agentic-ai](<https://devfeed.tech/tags/gnani-plexus-agentic-ai.md>), [india-ai-mission-sovereign-llm](<https://devfeed.tech/tags/india-ai-mission-sovereign-llm.md>), [indic-language-tokeniser-performance](<https://devfeed.tech/tags/indic-language-tokeniser-performance.md>), [milu-benchmark-indic-llms](<https://devfeed.tech/tags/milu-benchmark-indic-llms.md>), [open-weight-ai](<https://devfeed.tech/tags/open-weight-ai.md>), [sovereign-ai](<https://devfeed.tech/tags/sovereign-ai.md>), [technology](<https://devfeed.tech/tags/technology.md>), [technology-artificial-intelligence](<https://devfeed.tech/tags/technology-artificial-intelligence.md>), [vachana-tts-voice-cloning](<https://devfeed.tech/tags/vachana-tts-voice-cloning.md>)

### AI overview

Gnani has launched Evon v3.3, an open-weight large language model trained from scratch, and Plexus, an agentic AI platform built on it. Both are part of Artha, a sovereign AI stack aimed at Indian enterprises and public institutions. Evon supports more than 11 Indian languages, uses a tokenizer rebuilt for Indian scripts, and is released under the Apache 2.0 license.

### Source excerpt

Gnani said its open-weight model, Evon, targets lower AI costs with a tokeniser rebuilt for Indian scripts.