---
title: Claude Haiku 4.5 for Voice AI | Telnyx Release Notes
canonical: https://telnyx.com/release-notes/claude-haiku-4-5-voice-ai-assistants
---
# Claude Haiku 4.5 for Voice AI | Telnyx Release Notes

[Release notes](https://telnyx.com/release-notes)

# Native support for Anthropic Claude Haiku 4.5 in Voice AI Assistants

### 6, Feb 2026

Telnyx Voice AI Assistants now support Anthropic Claude Haiku 4.5 as a native model option. Developers can deploy the model without managing Anthropic API keys, while BYOK remains available for teams that need it.

## What’s new

* **Native Claude Haiku 4.5:** Select `anthropic/claude-haiku-4-5` directly in Voice AI Assistant settings.
* **No API key required:** Use the model out of the box on Telnyx infrastructure.
* **BYOK support:** Provide your own Anthropic API key if required.
* **Model flexibility:** Switch between Anthropic and OpenAI models per assistant.
* **Consistent performance:** Same latency targets and uptime guarantees as other native models.

## Why it matters

* **Reduces setup time:** Removes external Anthropic account and key management.
* **Improves evaluation:** Makes side-by-side model testing easier within the same assistant flow.
* **Simplifies cost control:** Supports native Telnyx pricing or existing Anthropic agreements.
* **Maintains operational consistency:** Keeps Voice AI behavior predictable across models.

## Example use cases

* Voice assistants that need fast, lightweight responses.
* Teams comparing Anthropic and OpenAI model behavior in production.
* Existing Anthropic users migrating from BYOK to native deployment.

## Getting started

1. Log in to the Telnyx Mission Control Portal.
2. Navigate to **AI Assistants**.
3. Create a new Voice AI Assistant or edit an existing one.
4. Select `anthropic/claude-haiku-4-5` as the model.
5. Place a test call to validate assistant behavior.

To use your own Anthropic credentials, enable BYOK in the same assistant configuration.

**Learn more** by reviewing Voice AI Assistant settings in [Mission Control Portal](https://portal.telnyx.com/#/ai/assistants) or contact your Telnyx team.

[Start building](https://telnyx.com/sign-up)

### Ask AI

* [![GPT](https://d2efw2akbx8gaf.cloudfront.net/https://dotcom-payload-assets-prod.s3.us-east-1.amazonaws.com/cms-media/chatgpt_icon-ea55e09d.jpeg?width=92&format=webp)](https://chat.openai.com/?q=What makes Telnyx's global network different, breakdown call quality for normal phone calls and voice AI calls.)
* [![Claude](https://d2efw2akbx8gaf.cloudfront.net/https://dotcom-payload-assets-prod.s3.us-east-1.amazonaws.com/cms-media/claude_icon-c7c8eef3.webp?width=92&format=webp)](https://claude.ai/new?q=What makes Telnyx's global network different, breakdown call quality for normal phone calls and voice AI calls.)
* [![Perplexity](https://d2efw2akbx8gaf.cloudfront.net/https://dotcom-payload-assets-prod.s3.us-east-1.amazonaws.com/cms-media/perplexity_icon-cd5b74f1.webp?width=92&format=webp)](https://www.perplexity.ai/search?q=What makes Telnyx's global network different, breakdown call quality for normal phone calls and voice AI calls.)
* [![Gemini](https://d2efw2akbx8gaf.cloudfront.net/https://dotcom-payload-assets-prod.s3.us-east-1.amazonaws.com/cms-media/gemini_icon-4ff1cbf4.webp?width=92&format=webp)](https://www.google.com/search?udm=50&aep=11&q=What makes Telnyx's global network different, breakdown call quality for normal phone calls and voice AI calls.)
* [![Grok](https://d2efw2akbx8gaf.cloudfront.net/https://dotcom-payload-assets-prod.s3.us-east-1.amazonaws.com/cms-media/grok_icon-e588e5bd.webp?width=92&format=webp)](https://x.com/i/grok?text=What makes Telnyx's global network different, breakdown call quality for normal phone calls and voice AI calls.)