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Documentation API Reference MCP SIP Updates Deprecation Overview

Past DeprecationsOpenAI Realtime and Cartesia Sonic models

Deprecation Overview

Deprecation Overview

Upcoming

Update Call becomes ended-calls-only
Legacy list endpoints and analysis prompt fields

Past Deprecations

Claude and Gemini models
tools and tool_ids on conversation nodes
OpenAI Realtime and Cartesia Sonic models
Single-agent fields on phone number configuration
show_transferee_as_caller cold transfer behavior

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Deprecation Overview

Deprecation Overview
Past Deprecations

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Deprecation Notice
OpenAI Realtime and Cartesia Sonic models

Deprecation Notice

04/03/2026ModelsDeprecated

OpenAI Realtime and Cartesia Sonic models

OpenAI Realtime and Cartesia Sonic models are being deprecated and replaced with newer versions. After 4/3/2026, the deprecated models will no longer be available.

Read more.

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