Flex and Priority Service Tiers Now Available for Telnyx Inference

Telnyx added Flex and Priority service tiers to Telnyx Inference, letting developers set a `service_tier` field on Chat Completions and Responses requests to trade latency against token cost on the same models and synchronous API. Priority keeps conversational turns fast on Kimi K2.6, while Flex runs DeepSeek V4.1 Flash at lower rates for latency-tolerant work, with both tiers running on Telnyx-hosted models. The models API at GET /v2/ai/openai/models lists `data[].service_tiers` per model, and not every model supports every tier.

Contact us https://telnyx.com/contact-us Log in https://portal.telnyx.com Telnyx Inference https://developers.telnyx.com/docs/inference/service-tiers now offers Flex and Priority service tiers. Set service tier on each request to trade latency against token cost, on the same models and the same synchronous API you already use. service tier to flex , default , or priority on Chat Completions and Responses requests. Omitting the field uses GET /v2/ai/openai/models lists data .service tiers per model. Not every model supports every tier, and the models API is the source of truth. Interactive and background workloads compete for the same serving capacity, and until now price was the only lever. Service tiers make the tradeoff explicit: Priority keeps conversational turns fast on Kimi K2.6 for workloads where a late response breaks the experience, and Flex runs DeepSeek V4.1 Flash at lower rates for work where a few minutes of latency costs nothing. Both tiers run on Telnyx-hosted models, so you change one field in the request body rather than adding a second inference provider. curl https://api.telnyx.com/v2/ai/openai/chat/completions \ -H "Authorization: Bearer $TELNYX API KEY" \ -H "Content-Type: application/json" \ -d '{ "model": "deepseek-ai/DeepSeek-V4.1-Flash", "service tier": "flex", "messages": {"role": "user", "content": "Summarize this support note in one sentence: The customer could not sign in. Resetting the password restored access."} }' Retry-After when present. Learn more in the Inference service tiers docs https://developers.telnyx.com/docs/inference/service-tiers or the Inference pricing page https://telnyx.com/pricing/inference-api .