{"slug": "gpt-5-4-mini-now-available-for-telnyx-voice-ai-assistants", "title": "GPT-5.4-mini Now Available for Telnyx Voice AI Assistants", "summary": "Telnyx has made OpenAI's GPT-5.4-mini available as an LLM model option for its Voice AI Assistants, allowing users to select the compact, high-efficiency model directly in assistant configuration without external API setup for Telnyx-hosted inference.", "body_md": "[Contact us](https://telnyx.com/contact-us)\n\n[Log in](https://portal.telnyx.com)\n\nGPT-5.4-mini is now available as an LLM model option for Telnyx Voice AI Assistants. Select OpenAI's compact, high-efficiency model directly in your assistant configuration, with no external API setup required for Telnyx-hosted inference.\n\nFor API-based configuration, set the model field on your assistant:\n\n```\n{\n  \"model\": \"openai/gpt-5.4-mini\"\n}\n```\n\n**Learn more** in the [Telnyx AI Assistants docs](https://developers.telnyx.com/docs/inference/ai-assistants) or the [Available Models guide](https://developers.telnyx.com/docs/inference/models).", "url": "https://wpnews.pro/news/gpt-5-4-mini-now-available-for-telnyx-voice-ai-assistants", "canonical_source": "https://telnyx.com/release-notes/gpt-5-4-mini-voice-ai-assistants", "published_at": "2026-07-23 00:00:00+00:00", "updated_at": "2026-07-23 16:08:51.755831+00:00", "lang": "en", "topics": ["large-language-models", "ai-products", "ai-tools", "artificial-intelligence"], "entities": ["Telnyx", "OpenAI", "GPT-5.4-mini"], "alternates": {"html": "https://wpnews.pro/news/gpt-5-4-mini-now-available-for-telnyx-voice-ai-assistants", "markdown": "https://wpnews.pro/news/gpt-5-4-mini-now-available-for-telnyx-voice-ai-assistants.md", "text": "https://wpnews.pro/news/gpt-5-4-mini-now-available-for-telnyx-voice-ai-assistants.txt", "jsonld": "https://wpnews.pro/news/gpt-5-4-mini-now-available-for-telnyx-voice-ai-assistants.jsonld"}}