# Deepgram April 29, 2026

- Product: Deepgram (https://whatsnew.fyi/product/deepgram)
- Vendor: Deepgram
- Date: 2026-04-29
- Original notes: https://developers.deepgram.com/changelog/2026/4/29
- Permalink: https://whatsnew.fyi/product/deepgram/releases/feed-https-developers.deepgram.com-changelog-2026-4-29

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LLM Model Updates & Cartesia Speed Control GPT-5.5 LLM Model Support OpenAI's GPT-5.5 model is now available as a managed LLM in the Voice Agent API. GPT-5.5 is an Advanced tier model. Set the model i…

- **added** — OpenAI's GPT-5.5 model is now available as a managed LLM in the Voice Agent API