Available Models - Telnyx

Open-weight LLMs hosted on Telnyx GPU infrastructure. All models accessible via the Chat Completions API (OpenAI-compatible). Not every model here is available to AI Assistants, and of the assistant models only a subset is verified for voice calls — see Voice AI models.

Chat Models

Model ID	Parameters	Context Length	Best For	Voice AI
`zai-org/GLM-5.3-Flash`	320B	1M	Efficient multimodal coding and agentic workflows (Recommended)	Not available for assistants
`zai-org/GLM-5.3`	753.9B	1M	Complex coding and long-horizon agent tasks	Not available for assistants
`deepseek-ai/DeepSeek-V4.1-Flash`	552B backbone	1M	Low-latency multimodal inference	Not available for assistants
`moonshotai/Kimi-K3`	2.8T	1M	State-of-the-art open-weight intelligence for coding, reasoning, and multimodal work	Not available for assistants
`moonshotai/Kimi-K2.6`	1.0T	256K	Voice AI	Verified — default
`zai-org/GLM-5.2`	753.9B	1M	Coding, reasoning, 1M context window	Verified
`MiniMaxAI/MiniMax-M3-MXFP8`	428B	1M	Cheapest while maintaining high intelligence	Not available for assistants
`deepseek-ai/DeepSeek-V4-Flash-0731`	304B	1M	Advanced coding, tool use, and long-horizon agentic workflows	Not available for assistants
`Qwen/Qwen3.8-27B`	27B	256K	Multimodal coding and visual understanding across documents, diagrams, and video	Not supported

Reasoning (thinking) behavior differs by surface: reasoning models return their chain-of-thought in a separate reasoning_content field on chat completions (see getting started), but reasoning is always disabled on voice calls and cannot be enabled there — see Reasoning on voice calls.

Embedding Models

Model ID	Dimensions	Best For
`thenlper/gte-large`	1024	Text embeddings