[docs-vnext] docs: sync vnext with GPT Realtime 2.1 updates

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Overview

Updates docs-vnext/ for sync commit 0312cc4. Microsoft Learn confirms the GPT Realtime 2.1 model IDs, GA /openai/v1 protocol, supported transports, and expanded voice list. The vnext variants retain their existing route structure and concise wording while incorporating the newer facts.

File comparisons

File	Comparison with canonical Microsoft Learn content
docs-vnext/docs.json	Adds the new Realtime 2.x overview to the existing model catalog navigation.
docs-vnext/foundry-models/codex.mdx	Preserves the legacy route links and adds current GPT-6 model and validated CLI version guidance.
docs-vnext/foundry-models/model-retirement-schedule.mdx	Replaces the stale Realtime 2 lifecycle and adds the GA 2.1 replacements.
docs-vnext/foundry-models/models-sold-directly-by-azure-region-availability.mdx	Adds the current GPT-5.6 and GPT-6 rows needed to represent the latest Sol and Luna availability.
docs-vnext/foundry-models/models-sold-directly-by-azure.mdx	Adds the official Realtime 2.1 variants and concise distinction between the full and mini models.
docs-vnext/foundry-models/realtime-2.mdx	Replaces preview-era guidance with the GA endpoint, models, voices, quotas, and limitations while retaining vnext links.
docs-vnext/foundry-models/realtime-audio-sip.mdx	Adds all Realtime 2.x supported models to the existing SIP guide.
docs-vnext/foundry-models/realtime-audio-webrtc.mdx	Adds Realtime 2.x support and the newly supported Cedar and Marin voices.
docs-vnext/foundry-models/realtime-audio-websockets.mdx	Adds all Realtime 2.x supported models to the existing WebSocket guide.
docs-vnext/foundry-models/realtime-audio.mdx	Adds all Realtime 2.x supported models to the overview.
docs-vnext/models/capabilities/codex.mdx	Preserves the reorganized capability links and adds current GPT-6 model and CLI validation guidance.
docs-vnext/models/catalog/models-sold-directly-by-azure.mdx	Extends the compact audio-model table with Realtime 2.x facts instead of importing canonical verbosity.
docs-vnext/models/catalog/realtime-2.mdx	Adds a concise, copy-ready GA overview for the reorganized model catalog.
docs-vnext/models/catalog/realtime-audio-sip.mdx	Adds Realtime 2.x support without changing the customized SIP procedure.
docs-vnext/models/catalog/realtime-audio-webrtc.mdx	Adds Realtime 2.x support and the current voice list without replacing the customized sample.
docs-vnext/models/catalog/realtime-audio-websockets.mdx	Adds Realtime 2.x support without replacing the customized multi-language examples.
docs-vnext/models/catalog/realtime-audio.mdx	Adds Realtime 2.x support while preserving the streamlined overview and route-specific links.

Validation

git diff --check passes, the new page includes required frontmatter, and changed MDX uses Mintlify-compatible syntax.

Generated by Post-Sync Documentation Updater · gpt56 · 223.2 AIC · ⌖ 14.3 AIC · ⊞ 18.2K · ◷

• expires on Sep 30, 2026, 7:37 PM UTC

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This pull request was automatically closed because it expired on 2026-09-30T19:37:03.447Z.

Closed by Workflow