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.
Makes side-by-side model testing easier within the same assistant flow.

Improves evaluation:

Simplifies cost control: Supports native Telnyx pricing or existing Anthropic agreements.

Maintains operational consistency: Keeps Voice AI behavior predictable across models.

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.

Log in to the Telnyx Mission Control Portal.
Navigate to AI Assistants.
Create a new Voice AI Assistant or edit an existing one.
Select anthropic/claude-haiku-4-5 as the model.
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 or contact your Telnyx team.

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Native support for Anthropic Claude Haiku 4.5 in Voice AI Assistants

6, Feb 2026

What’s new

Why it matters

Example use cases

Getting started