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Deepgram · Deepgram platform · LLM

GPT-5.5

API availabilityAvailable in the API since Apr 29, 2026
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Notice

API availability

Available in the API since Apr 29, 2026

Deepgram announced API availability for this model on 2026-04-29.

This date applies to API availability. Rollouts in consumer products or other hosting routes can happen on different dates.

Hosting route
Deepgram platform
Affected scope
Not stated in the notice
Announced
Apr 29, 2026
First seen by ModelClock
Oct 3, 2026

What the provider published

developers.deepgram.com ↗

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

Read from the provider's text; the quote is the provider's exact lines.

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Same model elsewhere

Each provider and hosting route sets its own dates.