# GLM-5.2, GPT-5.6 Luna, and GPT-5.6 Sol Now Available for Telnyx Voice AI Assistants

> Source: <https://telnyx.com/release-notes/glm-5-2-gpt-5-6-luna-sol-voice-ai-assistants>
> Published: 2026-08-06 00:00:00+00:00

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Three new LLMs are now available for [Telnyx Voice AI Assistants](https://telnyx.com/products/voice-ai-agents): GLM-5.2 from Z.ai, plus GPT-5.6 Luna and GPT-5.6 Sol from OpenAI. GLM-5.2 is the highest-intelligence open-weight model available, GPT-5.6 Luna offers a strong cost-to-intelligence ratio for voice workloads, and GPT-5.6 Sol rounds out the lineup as OpenAI's most capable model for complex conversations.

**Learn more** in the [AI Assistants documentation](https://developers.telnyx.com/docs/inference/ai-assistants) or the [GLM-5.2 release notes](https://telnyx.com/release-notes/glm-5-2-inference).